Earth's Busy Neighborhood
ACC's Small Object Report for 18-24 December 2006
A semi-automated report compiled on 24 December 2006 at 2359 UTC
There were 25 small asteroids reported in the last 168 hours, during which five were newly discovered.
Currently 1,209 NEAs are listed with H>22.0 by JPL and/or the MPC (1,026 are listed as such by both).
[ news | objects by size | object index alpha/cross-ref | 48 Hours | viewing | weekly ]
Editor's note: As asteroids go, "small" is defined as having an
absolute magnitude (brightness) calculated at greater than H=22.0, which
converts very roughly to a diameter under 135 meters.
No matter how close they come to the Earth, the astronomical community
does not classify such objects as "potentially hazardous." However, as
demonstrated by the mile wide (1.6 km.) Barringer Crater in Arizona, blasted
out by a "small" asteroid some 50,000 years ago, there are asteroids too small
to be labeled "potentially hazardous" that actually could cause severe local
damage. These are sometimes called "Tunguska-class objects" (TCOs), after the
1908 event probably caused by a comet fragment or asteroid too small to be
classified today as hazardous but packing enough wallop to flatten a Siberian
forest area the size of a large city.
NEODyS in December 2005 changed its main Risk page to classify "Objects too
small to result in heavy damage on the ground" as having "absolute
magnitude > 25," which corresponds to perhaps 35 meters wide.
And JPL two months earlier started flagging (with a blue background) risk-listed
objects of "Estimated diameter 50 meters or less" as "not likely to
cause significant damage in the event of an impact, although impact damage
does depend heavily upon the specific (and usually unknown) physical
properties of the object in question."
Small asteroids that come close enough to Earth to be seen have significant
potential for scientific study today, and for exploration and
exploitation in the future. They present a sampling of distant asteroid
populations and a few may be remnants of the event that created the
Earth-Moon system.
Some of these objects are discovered while close to Earth moving across the sky
quite quickly, when they are called "FMOs" or "VFMOs" (very fast moving objects).
The discovery and follow-up tracking of asteroids with H>22.0 represents
some of the most difficult and very best observing work being done today by
amateur and professional astronomers around the world, and the page you are
reading is dedicated to recognizing their ongoing successes.
Small Object News (newest items first) [ object listings |
index |
48 Hours |
viewing |
weekly |
top ]
- Dec. 24: Sunday Daily Orbit Update (DOU) MPEC 2006-Y42 reports observations of eight small asteroids. Linz Observatory in Austria provided the first follow-up for 2006 YP, adding four days to its three-day discovery arc. KLENOT in the Czech Republic brought in the first follow-up for 2006 YJ2 and tracked 2006 XN4 and 2006 XO4. It also observed risk-listed 2006 XP4 as did the Mt. Lemmon Survey (MLS) in Arizona, which also followed 2006 YB. Petit Jean Mountain South Observatory in Arkansas reported 2006 XV4. And 2006 YA was observed by MLS and KLENOT as well as by Gnosca, Verona, and Guidestar observatories in Switzerland, Italy, and Germany.
- Dec. 23: A small-asteroid discovery has been announced on Saturday. 2006 YX2 was caught yesterday morning UT by LINEAR in New Mexico and was confirmed this morning by Farpoint Observatory in Kansas and the Mt. Lemmon Survey (MLS) in Arizona.
DOU MPEC 2006-Y40 today reports observations of eight small asteroids. 2005 CN has been recovered on its third opposition by Spacewatch in Arizona with its 1.8-meter telescope, which back in February was last to observe this object. MLS observed all seven of the others reported in today's DOU. It doubled the observing arc to about eight days for 2006 XX2, which goes out of view in a couple days for most NEO observers but remains in view for larger telescopes into mid-January, and it followed 2006 XV4, which was again delisted today as an impact risk. MLS alone tracked 2006 XJ2, 2006 XY2, 2006 XO4, and 2006 XW4. And MLS and Petit Jean Mountain South Observatory in Arkansas observed 2006 YA.
- Dec. 22: On Friday there is news of two small-asteroid discoveries. 2006 YH2 was found yesterday morning UT in Arizona with the Spacewatch 1.8-meter telescope, which confirmed it along with Jim Bedient using the Faulkes North Telescope in Hawaii. The Siding Spring Survey first caught 2006 YJ2 yesterday and confirmed the discovery today along with CEAMIG-REA in Brazil, Sabino Canyon Observatory and the Mt. Lemmon Survey (MLS), both in Arizona, and Mt. John Observatory in New Zealand.
Today's DOU MPEC 2006-Y36 reports observations of seventeen small asteroids, and let's start with the five of these that have impact solutions: UKAPP in Northern Ireland used the Faulkes Telescope North to add about five days to the fifteen-day observing arc of 2006 WK130, and today this object was delisted as an impact risk. UKAPP also added three days to what had been a four-day observing arc for 2006 XZ2, which will soon go out of view, and UKAPP plus the Spacewatch 1.8-meter, MLS, and the Catalina Sky Survey (CSS) reported 2006 XP4. Spacewatch with its 1.8-meter telescope added about six days to 2006 WZ184's former seventeen-day arc, and MLS tracked 2006 XV4, which was relisted today as an impact risk.
Jornada Observatory in New Mexico provided the first follow-up for 2006 XW4, adding about five days to its two-day discovery arc, and MLS brought in the first follow-up for 2006 YB, adding four days to its one-day arc. Los Molinos Observatory in Uruguay added four days to 2006 XY's former six-day arc. MLS added five days to 2006 XJ2's four-day arc, and MLS and the Spacewatch 1.8-meter added five days to 2006 XY2's three-day arc and four days to 2006 XQ4's two day arc. Beyond that, MLS added five days to the three-day arc for 2006 XA3, for which observation is also reported from the Spacewatch 0.9-meter telescope on December 15th. CSS added four days to 2006 XN4's three day arc and also observed 2006 XO4. And, finally, Spacewatch used its 1.8-meter telescope to add 50 days to 2006 SV5's 46-day arc, eighteen days to 2006 UF's former 48-day arc, and twelve days to what had been a nineteen-day arc for 2006 WP3.
- Dec. 21: Thursday's DOU MPEC 2006-Y30 reports observations of four small asteroids. The Mt. Lemmon Survey in Arizona doubled risk-listed 2006 XP4's observing arc to about six days. Hibiscus Observatory in Tahiti provided the first follow-up for 2006 XO4, adding about four days to its two-day arc, and also added about a half day to the arc for little-observed 2006 XV4. And Great Shefford Observatory in England kept after 2006 YM.
- Dec. 20: On Wednesday a small-asteroid discovery has been announced. 2006 YP was found last Sunday morning in Arizona by the Catalina Sky Survey, which confirmed the discovery this morning.
Today's DOU MPEC 2006-Y24 reports observations of three small asteroids. Gnosca Observatory in Switzerland provided the first follow-up for 2006 XV4 and 2006 YA, and 2006 XV4 has been delisted today as an impact risk. And Great Shefford Observatory in England extended 2006 YM's discovery arc by about four hours.
- Dec. 19 #2: Tuesday has closed out with the announcement of a discovery of a small asteroid. 2006 YM was first noticed by LINEAR from New Mexico yesterday morning and was confirmed today by Nyukasa Observatory in Japan and this evening by Gnosca Observatory in Switzerland. JPL reports that this object will pass Earth at ten lunar distances early on the 20th.
- Dec. 19 #1: No observations of small asteroids were reported in today's DOU MPEC.
- Dec. 18: On Monday, DOU MPEC 2006-Y19 reports observations of four small asteroids. The Mt. Lemmon Survey in Arizona tracked risk-listed 2006 XZ2 and 2006 XP4, and provided the first follow-up for 2006 XQ4. And Andrushivka Observatory in the Ukraine brought in the first follow-up for 2006 XN4.
- See news from the week of 11-17 December and from previous weeks, and you also can look up individual small asteroids.
Object Listings -- smallest objects first [ Alpha Index | 48 Hours | top ]
2006 XZ2 (K06X02Z) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 13 meters per JPL H=27.11, MPC H=27.1
This object has been listed as an impact risk since 14 Dec. 2006.
JPL classifies 2006 XZ2 as an Apollo and calculates an Earth MOID of 0.002430 AU (0.95 LD),
and reports this object passed Earth at 4.8 lunar distances (LD) on 22 Dec. 2006 at 0219 UT.
Lowell Observatory reports 2006 XZ2 has an MOID of 0.00519 AU (2.02 LD) with Mars.
Observations are reported from the following observatories in MPECs 2006-Y19 and 2006-Y36:
Mt. Lemmon Survey (MLS) [G96]
2006-12-17 0443-0445, 4 pos. in MPEC 2006-Y19, follow-up
Faulkes Telescope North [F65{1}] coded to UKAPP
2006-12-20 1221-1226, 6 pos. in MPEC 2006-Y36, follow-up
See also information from the week ending 17 Dec. 2006.
2006 XQ4 (K06X04Q) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 20 meters per JPL H=26.12, MPC H=26.1
JPL classifies 2006 XQ4 as an Amor and calculates an Earth MOID of 0.052500 AU (20.43 LD),
and reports this object passed Earth at 21.3 LD on 16 Dec. 2006.
Observations are reported from the following observatories in MPECs 2006-Y19 and 2006-Y36:
Mt. Lemmon Survey (MLS) [G96]
2006-12-17 0336-0339, 4 pos. in MPEC 2006-Y19, follow-up
2006-12-21 0651-0725, 3 pos. in MPEC 2006-Y36, follow-up
Spacewatch 1.8m telescope [291]
2006-12-21 0710-0759, 5 pos. in MPEC 2006-Y36, follow-up (t)
See also information from the week ending 17 Dec. 2006.
2006 WZ184 (K06WI4Z) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 21 meters per JPL H=26.00, MPC H=26.1
This object has been listed as an impact risk since 1 Dec. 2006.
JPL classifies 2006 WZ184 as an Apollo and calculates an Earth MOID of 0.001985 AU (0.77 LD),
and reports this object passed Earth at 5.9 LD on 26 Nov. 2006 at 2156 UT.
Lowell Observatory reports 2006 WZ184 has an MOID of 0.02094 AU (8.15 LD) with Mars.
Observations are reported from the following observatories in MPEC 2006-Y36:
Spacewatch 1.8m telescope [291]
2006-12-21 0429-0459, 3 pos. in MPEC 2006-Y36, follow-up (H)
See also information from the week ending 17 Dec. 2006.
2006 YH2 (K06Y02H) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 28 meters per JPL H=25.45, MPC H=25.4
JPL classifies 2006 YH2 as an Amor and calculates an Earth MOID of 0.098228 AU (38.22 LD).
Observations are reported from the following observatories in MPEC 2006-Y37:
Spacewatch 1.8m telescope [291]
2006-12-21 0427-0458, 3 pos. in MPEC 2006-Y37, discovery (*)
2006-12-21 0833-0923, 6 pos. in MPEC 2006-Y37, confirmation (t)
2006-12-22 0526-0532, 2 pos. in MPEC 2006-Y37, confirmation (t)
Faulkes Telescope North [F65{4}] coded to Jim Bedient
2006-12-21 0804-0838, 3 pos. in MPEC 2006-Y37, confirmation
2006 XA3 (K06X03A) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 31 meters per JPL H=25.20, MPC H=25.2
This object was listed from 14 until 16 Dec. 2006 as an impact risk.
JPL classifies 2006 XA3 as an Apollo and calculates an Earth MOID of 0.014467 AU (5.63 LD),
and reports this object passed Earth at 8.6 LD on 5 Dec. 2006 at 1117 UT.
Lowell Observatory reports 2006 XA3 has an MOID of 0.03666 AU (14.26 LD) with Mars.
Observations are reported from the following observatories in MPEC 2006-Y36:
Spacewatch 0.9m telescope [691]
2006-12-15 1028-1118, 2 pos. in MPEC 2006-Y36, follow-up (t)
Mt. Lemmon Survey (MLS) [G96]
2006-12-21 0819-0838, 3 pos. in MPEC 2006-Y36, follow-up
See also information from the week ending 17 Dec. 2006.
2006 XX2 (K06X02X) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 33 meters per JPL H=25.05, MPC H=25.1
JPL classifies 2006 XX2 as an Aten and calculates an Earth MOID of 0.017351 AU (6.75 LD),
and reports this object passed Earth at 7.2 LD on 10 Dec. 2006 at 1957 UT.
Observations are reported from the following observatories in MPEC 2006-Y40:
Mt. Lemmon Survey (MLS) [G96]
2006-12-22 0440-0522, 4 pos. in MPEC 2006-Y40, follow-up
See also information from the week ending 17 Dec. 2006.
2006 XV4 (K06X04V) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 36 meters per JPL H=24.89, MPC H=24.8
This object was listed from 17 until 23 Dec. 2006 as an impact risk.
JPL classifies 2006 XV4 as an Apollo and calculates an Earth MOID of 0.004340 AU (1.69 LD),
and reports this object passed Earth at 5.2 LD on 12 Dec. 2006 at 0518 UT.
Observations are reported from the following observatories in MPECs 2006-Y24, 2006-Y30,
2006-Y36, 2006-Y40, and 2006-Y42:
Gnosca Obs. [143]
2006-12-19 2309-2323, 3 pos. in MPEC 2006-Y24, follow-up
Hibiscus Obs. [F84]
2006-12-20 1115-1210, 2 pos. in MPEC 2006-Y30, follow-up
Mt. Lemmon Survey (MLS) [G96]
2006-12-21 0737-0805, 3 pos. in MPEC 2006-Y36, follow-up
2006-12-22 0643-0708, 4 pos. in MPEC 2006-Y40, follow-up
Petit Jean Mountain South Obs. [H45]
2006-12-23 1108-1121, 5 pos. in MPEC 2006-Y42, follow-up
See also information from the week ending 17 Dec. 2006.
2006 YM (K06Y00M) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 45 meters per JPL H=24.40, MPC H=24.4
JPL classifies 2006 YM as an Aten and calculates an Earth MOID of 0.023503 AU (9.15 LD),
and reports this object passed Earth at 10.0 LD on 20 Dec. 2006 at 0343 UT.
Observations are reported from the following observatories in MPECs 2006-Y22, 2006-Y24,
and 2006-Y30:
LINEAR [704]
2006-12-18 0808-0923, 4 pos. in MPEC 2006-Y22, discovery (*)
Nyukasa Obs. [408]
2006-12-19 1248-1254, 4 pos. in MPEC 2006-Y22, confirmation
Gnosca Obs. [143]
2006-12-19 2213-2221, 4 pos. in MPEC 2006-Y22, confirmation
Great Shefford Obs. [J95]
2006-12-20 0221-0224, 3 pos. in MPEC 2006-Y24, follow-up
2006-12-20 2051-2056, 3 pos. in MPEC 2006-Y30, follow-up
2006 XW4 (K06X04W) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 46 meters per JPL H=24.32, MPC H=24.4
JPL classifies 2006 XW4 as an Apollo and calculates an Earth MOID of 0.004396 AU (1.71 LD),
and reports this object passed Earth at 22.9 LD on 7 Dec. 2006.
Observations are reported from the following observatories in MPECs 2006-Y36 and 2006-Y40:
Jornada Obs. [715]
2006-12-22 0249-0325, 3 pos. in MPEC 2006-Y36, follow-up (I)
Mt. Lemmon Survey (MLS) [G96]
2006-12-22 0438-0520, 3 pos. in MPEC 2006-Y40, follow-up
See also information from the week ending 17 Dec. 2006.
2006 YX2 (K06Y02X) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 51 meters per JPL H=24.11, MPC H=24.1
JPL classifies 2006 YX2 as an Apollo and calculates an Earth MOID of 0.066038 AU (25.70 LD),
and reports this object passed Earth at 25.8 LD on 18 Dec. 2006.
Observations are reported from the following observatories in MPEC 2006-Y41:
LINEAR [704]
2006-12-22 0430-0543, 4 pos. in MPEC 2006-Y41, discovery (*)
Farpoint Obs. [734]
2006-12-23 0534-0544, 5 pos. in MPEC 2006-Y41, confirmation
Mt. Lemmon Survey (MLS) [G96]
2006-12-23 0809-0848, 7 pos. in MPEC 2006-Y41, confirmation
2006 YB (K06Y00B) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 53 meters per JPL H=24.04, MPC H=24.1
JPL classifies 2006 YB as an Apollo and calculates an Earth MOID of 0.054028 AU (21.02 LD),
and reports this object will pass Earth at 31.8 LD on 26 Dec. 2006.
Observations are reported from the following observatories in MPECs 2006-Y36 and 2006-Y42:
Mt. Lemmon Survey (MLS) [G96]
2006-12-21 0903-0933, 4 pos. in MPEC 2006-Y36, follow-up
2006-12-23 1022-1102, 4 pos. in MPEC 2006-Y42, follow-up
See also information from the week ending 17 Dec. 2006.
2006 XJ2 (K06X02J) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 53 meters per JPL H=24.02, MPC H=24.0
JPL classifies 2006 XJ2 as an Amor and calculates an Earth MOID of 0.115176 AU (44.82 LD).
Observations are reported from the following observatories in MPECs 2006-Y36 and 2006-Y40:
Mt. Lemmon Survey (MLS) [G96]
2006-12-21 0606-0625, 3 pos. in MPEC 2006-Y36, follow-up
2006-12-22 0441-0455, 2 pos. in MPEC 2006-Y40, follow-up
See also information from the week ending 17 Dec. 2006.
2006 XY (K06X00Y) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 54 meters per JPL H=24.00, MPC H=24.0
JPL classifies 2006 XY as an Apollo and calculates an Earth MOID of 0.006955 AU (2.71 LD),
and reports this object passed Earth at 4.8 LD on 18 Dec. 2006 at 0414 UT.
Observations are reported from the following observatories in MPEC 2006-Y36:
Los Molinos Obs. [844]
2006-12-21 0347-0410, 9 pos. in MPEC 2006-Y36, follow-up
See also information from the week ending 17 Dec. 2006.
2006 XN4 (K06X04N) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 59 meters per JPL H=23.81, MPC H=24.0
JPL classifies 2006 XN4 as an Apollo and calculates an Earth MOID of 0.035044 AU (13.64 LD),
and reports this object passed Earth at 14.7 LD on 14 Dec. 2006.
Observations are reported from the following observatories in MPECs 2006-Y19, 2006-Y36,
and 2006-Y42:
Andrushivka Obs. [A50]
2006-12-16 2209-2224, 7 pos. in MPEC 2006-Y19, follow-up
Catalina Sky Survey (CSS) [703]
2006-12-21 0958-1009, 2 pos. in MPEC 2006-Y36, follow-up
KLENOT [246]
2006-12-24 0059-0105, 6 pos. in MPEC 2006-Y42, follow-up
See also information from the week ending 17 Dec. 2006.
2006 XP4 (K06X04P) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 59 meters per JPL H=23.78, MPC H=23.8
This object has been listed as an impact risk since 16 Dec. 2006.
JPL classifies 2006 XP4 as an Aten and calculates an Earth MOID of 0.004109 AU (1.60 LD),
and reports this object will pass Earth at 28.6 LD on 9 Jan. 2007.
Lowell Observatory reports 2006 XP4 has an MOID of 0.02060 AU (8.02 LD) with Venus.
Observations are reported from the following observatories in MPECs 2006-Y19, 2006-Y30,
2006-Y36, and 2006-Y42:
Mt. Lemmon Survey (MLS) [G96]
2006-12-17 0852-0853, 2 pos. in MPEC 2006-Y19, follow-up
2006-12-20 1055-1118, 8 pos. in MPEC 2006-Y30, follow-up
2006-12-21 0858-0927, 10 pos. in MPEC 2006-Y36, follow-up
2006-12-23 1021-1101, 4 pos. in MPEC 2006-Y42, follow-up
Faulkes Telescope North [F65{1}] coded to UKAPP
2006-12-20 1212-1217, 5 pos. in MPEC 2006-Y36, follow-up
Spacewatch 1.8m telescope [291]
2006-12-21 0809-0822, 3 pos. in MPEC 2006-Y36, follow-up
Catalina Sky Survey (CSS) [703]
2006-12-21 0957-1029, 4 pos. in MPEC 2006-Y36, follow-up
KLENOT [246]
2006-12-24 0003-0009, 5 pos. in MPEC 2006-Y42, follow-up
See also information from the week ending 17 Dec. 2006.
2006 YP (K06Y00P) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 66 meters per JPL H=23.55, MPC H=23.5
JPL classifies 2006 YP as an Apollo and calculates an Earth MOID of 0.025772 AU (10.03 LD),
and reports this object will pass Earth at 22.6 LD on 30 Dec. 2006.
Observations are reported from the following observatories in MPECs 2006-Y25 and 2006-Y42:
Catalina Sky Survey (CSS) [703]
2006-12-17 0747-0835, 4 pos. in MPEC 2006-Y25, discovery (*)
2006-12-20 0855-0917, 4 pos. in MPEC 2006-Y25, confirmation
2006-12-20 1129-1139, 3 pos. in MPEC 2006-Y25, confirmation
Linz Obs. [540]
2006-12-23 2147-2213, 5 pos. in MPEC 2006-Y42, follow-up
2006 WP3 (K06W03P) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 69 meters per JPL H=23.47, MPC H=23.4
JPL classifies 2006 WP3 as an Apollo and calculates an Earth MOID of 0.023053 AU (8.97 LD),
and reports this object passed Earth at 9.1 LD on 12 Nov. 2006 at 0805 UT.
Lowell Observatory reports 2006 WP3 has an MOID of 0.02838 AU (11.04 LD) with Mars.
Observations are reported from the following observatories in MPEC 2006-Y36:
Spacewatch 1.8m telescope [291]
2006-12-21 0643-0656, 3 pos. in MPEC 2006-Y36, follow-up (H)
See also information from the week ending 10 Dec. 2006.
2006 XO4 (K06X04O) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 74 meters per JPL H=23.31, MPC H=23.3
JPL classifies 2006 XO4 as an Aten and calculates an Earth MOID of 0.027615 AU (10.75 LD),
and reports this object passed Earth at 29.7 LD on 19 Dec. 2006.
Observations are reported from the following observatories in MPECs 2006-Y30, 2006-Y36,
2006-Y40, and 2006-Y42:
Hibiscus Obs. [F84]
2006-12-20 1215-1309, 2 pos. in MPEC 2006-Y30, follow-up
Catalina Sky Survey (CSS) [703]
2006-12-21 0838-0902, 4 pos. in MPEC 2006-Y36, follow-up
Mt. Lemmon Survey (MLS) [G96]
2006-12-22 0642-0707, 4 pos. in MPEC 2006-Y40, follow-up
KLENOT [246]
2006-12-23 2320-2324, 7 pos. in MPEC 2006-Y42, follow-up
See also information from the week ending 17 Dec. 2006.
2006 SV5 (K06S05V) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 80 meters per JPL H=23.14, MPC H=23.1
JPL classifies 2006 SV5 as an Amor and calculates an Earth MOID of 0.035879 AU (13.96 LD),
and reports this object passed Earth at 15.3 LD on 13 Oct. 2006.
Observations are reported from the following observatories in MPEC 2006-Y36:
Spacewatch 1.8m telescope [291]
2006-12-21 0513-0520, 2 pos. in MPEC 2006-Y36, follow-up
See also information from the week ending 5 Nov. 2006.
2006 YA (K06Y00A) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 84 meters per JPL H=23.04, MPC H=23.1
JPL classifies 2006 YA as an Apollo and calculates an Earth MOID of 0.048178 AU (18.75 LD),
and reports this object will pass Earth at 19.7 LD on 29 Dec. 2006.
Observations are reported from the following observatories in MPECs 2006-Y24, 2006-Y40,
and 2006-Y42:
Gnosca Obs. [143]
2006-12-19 2018-2024, 2 pos. in MPEC 2006-Y24, follow-up
2006-12-22 2021-2028, 3 pos. in MPEC 2006-Y42, follow-up
Verona Obs. [A48]
2006-12-21 2043-2055, 4 pos. in MPEC 2006-Y42, follow-up
Mt. Lemmon Survey (MLS) [G96]
2006-12-22 0456-0525, 3 pos. in MPEC 2006-Y40, follow-up
2006-12-23 0937-1008, 4 pos. in MPEC 2006-Y42, follow-up
Petit Jean Mountain South Obs. [H45]
2006-12-22 0714-0723, 6 pos. in MPEC 2006-Y40, follow-up
KLENOT [246]
2006-12-23 2047-2052, 7 pos. in MPEC 2006-Y42, follow-up
Guidestar Obs. [A17]
2006-12-23 2215-2238, 3 pos. in MPEC 2006-Y42, follow-up
See also information from the week ending 17 Dec. 2006.
2005 CN (K05C00N) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 85 meters per JPL H=23.01, MPC H=23.1
JPL classifies 2005 CN as an Apollo and calculates an Earth MOID of 0.029211 AU (11.37 LD).
Observations are reported from the following observatories in MPEC 2006-Y40:
Spacewatch 1.8m telescope [291]
2006-12-22 0617-0629, 3 pos. in MPEC 2006-Y40, follow-up (H)
See also information from the week ending 5 Feb. 2006.
2006 XY2 (K06X02Y) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 107 meters per JPL H=22.50, MPC H=22.4
JPL classifies 2006 XY2 as an Amor and calculates an Earth MOID of 0.182263 AU (70.92 LD).
Observations are reported from the following observatories in MPECs 2006-Y36 and 2006-Y40:
Spacewatch 0.9m telescope [691]
2006-12-15 0754-0845, 3 pos. in MPEC 2006-Y36, follow-up (H)
Spacewatch 1.8m telescope [291]
2006-12-21 0621-0632, 3 pos. in MPEC 2006-Y36, follow-up (t)
Mt. Lemmon Survey (MLS) [G96]
2006-12-21 0738-0806, 3 pos. in MPEC 2006-Y36, follow-up
2006-12-22 0635-0655, 3 pos. in MPEC 2006-Y40, follow-up
See also information from the week ending 17 Dec. 2006.
2006 WK130 (K06WD0K) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 114 meters per JPL H=22.36, MPC H=22.3
This object was listed from 29 Nov. until 22 Dec. 2006 as an impact risk.
JPL classifies 2006 WK130 as an Apollo and calculates an Earth MOID of 0.020025 AU (7.79 LD).
Observations are reported from the following observatories in MPEC 2006-Y36:
Faulkes Telescope North [F65{1}] coded to UKAPP
2006-12-20 1203-1208, 5 pos. in MPEC 2006-Y36, follow-up
See also information from the week ending 17 Dec. 2006.
2006 UF (K06U00F) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 115 meters per JPL H=22.35, MPC H=22.3
JPL classifies 2006 UF as an Amor and calculates an Earth MOID of 0.170877 AU (66.49 LD).
Observations are reported from the following observatories in MPEC 2006-Y36:
Spacewatch 1.8m telescope [291]
2006-12-21 0547-0555, 2 pos. in MPEC 2006-Y36, follow-up
See also information from the week ending 10 Dec. 2006.
2006 YJ2 (K06Y02J) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 121 meters per JPL H=22.24, MPC H=22.3
JPL classifies 2006 YJ2 as an Amor and calculates an Earth MOID of 0.092191 AU (35.87 LD),
and reports this object passes Earth at 38.5 LD on 25 Dec. 2006.
Observations are reported from the following observatories in MPECs 2006-Y38 and 2006-Y42:
Siding Spring Survey (SSS) [E12]
2006-12-21 1517-1704, 9 pos. in MPEC 2006-Y38, discovery (*)
2006-12-22 1051-1054, 5 pos. in MPEC 2006-Y38, confirmation
CEAMIG-REA [I77]
2006-12-22 0234-0256, 5 pos. in MPEC 2006-Y38, confirmation
Sabino Canyon Obs. [854]
2006-12-22 0611-0618, 2 pos. in MPEC 2006-Y38, confirmation
Mt. Lemmon Survey (MLS) [G96]
2006-12-22 0630-0632, 4 pos. in MPEC 2006-Y38, confirmation
Mt. John Obs. [474]
2006-12-22 1131-1138, 3 pos. in MPEC 2006-Y38, confirmation
KLENOT [246]
2006-12-23 2038-2044, 7 pos. in MPEC 2006-Y42, follow-up
48+120 Hours [ Objects Listings (size order) | Object Index (alpha/xref) | top ]
Observations of 25 small objects were reported during the last 168 hours:
2005 CN, 2006 SV5, 2006 UF, 2006 WK130, 2006 WP3, 2006 WZ184, 2006 XA3, 2006 XJ2,
2006 XN4, 2006 XO4, 2006 XP4, 2006 XQ4, 2006 XV4, 2006 XW4, 2006 XX2, 2006 XY,
2006 XY2, 2006 XZ2, 2006 YA, 2006 YB, 2006 YH2, 2006 YJ2, 2006 YM, 2006 YP & 2006 YX2
in MPECs:
2006-Y19 time-stamped 2006 Dec. 18, 07:07 UT - Daily Orbit Update
2006-Y22 time-stamped 2006 Dec. 19, 22:47 UT - 2006 YM
2006-Y24 time-stamped 2006 Dec. 20, 07:08 UT - Daily Orbit Update
2006-Y25 time-stamped 2006 Dec. 20, 14:37 UT - 2006 YP
2006-Y30 time-stamped 2006 Dec. 21, 07:08 UT - Daily Orbit Update
2006-Y36 time-stamped 2006 Dec. 22, 07:09 UT - Daily Orbit Update
2006-Y37 time-stamped 2006 Dec. 22, 13:23 UT - 2006 YH2
2006-Y38 time-stamped 2006 Dec. 22, 13:26 UT - 2006 YJ2
2006-Y40 time-stamped 2006 Dec. 23, 07:08 UT - Daily Orbit Update
2006-Y41 time-stamped 2006 Dec. 23, 13:55 UT - 2006 YX2
2006-Y42 time-stamped 2006 Dec. 24, 07:08 UT - Daily Orbit Update
Date & times for other sources that were parsed to compile this page:
JPL Close Approaches, downloaded at 2006 Dec. 24, 1640 UTC
JPL NEO Orbital Elements, downloaded at 2006 Dec. 24, 1648 UTC
Lowell Observatory Orbit intersections, time-stamped 2006 Dec 24 2150:14 UTC
MPC NEA.DAT from MPC mirror, downloaded at 2006 Dec. 24, 1602 UTC
Risk monitoring sites, as of A/CC's check at 2006 Dec. 24, 2359 UTC (see CRT page)
Some observation sets have MPEC codes in parentheses, such as (*) denoting discovery.
Viewing Opportunities for Small Objects [ news | size order | alpha order | top ]
This compilation shows 34 small objects as being currently in view,
including 11 not reported in the last seven days.
Viewing by date order - see this list also by designation order
Object View until MOID AU Dia H Arc Notes (calc date)
---------- ---------- -------- --- ----- --- - -----------------------
2006 XA3 2006-12-25 0.014467 31 25.20 8 - was risk listed - (22 Dec.)
2006 XX2 2006-12-25 0.017351 33 25.05 8 - (23 Dec.)
2006 WH130 2006-12-26 0.089924 61 23.74 3 - past obs. - (8 Dec.)
2004 XK14 2006-12-28 0.025282 120 22.25 15 - faint recov. poss. - (8 Nov.)
2006 UP 2006-12-28 0.112397 84 23.04 38 - past obs. - (24 Nov.)
2006 WP3 2006-12-28 0.023053 69 23.47 31 - (22 Dec.)
2006 UA216 2006-12-30 0.014660 66 23.56 25 - past obs. - (10 Dec.)
2006 TO 2006-12-30 0.183767 88 22.93 70 - was risk listed - past obs. - (12 Dec.)
2006 VP13 2006-12-31 0.068105 67 23.52 12 - past obs. - (28 Nov.)
2006 WK130 2006-12-31 0.020025 114 22.36 22 - was risk listed - (22 Dec.)
2006 SP198 2007-01-01 0.277909 144 21.85 78 - past obs. - (14 Dec.)
2006 BJ55 2007-01-02 0.027616 49 24.21 14 - faint recov. poss. - past obs. - (8 Nov.)
2006 XJ2 2007-01-02 0.115176 53 24.02 10 - (23 Dec.)
2006 YX2 2007-01-03 0.066038 51 24.11 1 - (23 Dec.)
2006 XW4 2007-01-04 0.004396 46 24.32 7 - (23 Dec.)
2006 XQ4 2007-01-05 0.052500 20 26.12 6 - (22 Dec.)
2006 XV4 2007-01-07 0.004340 36 24.89 10 - was risk listed - (24 Dec.)
2006 YM 2007-01-11 0.023503 45 24.40 3 - (21 Dec.)
2006 UF 2007-01-11 0.170877 115 22.35 66 - (22 Dec.)
2006 XW 2007-01-12 0.058841 61 23.71 5 - past obs. - (16 Dec.)
2006 SV5 2007-01-14 0.035879 80 23.14 96 - (22 Dec.)
2006 YP 2007-01-15 0.025772 66 23.55 7 - (24 Dec.)
2006 XN4 2007-01-15 0.035044 59 23.81 10 - (24 Dec.)
2006 YB 2007-01-15 0.054028 53 24.04 7 - (24 Dec.)
2006 XX 2007-01-16 0.079770 65 23.57 3 - past obs. - (15 Dec.)
2005 CN 2007-01-25 0.029211 85 23.01 3op - "only 1 night" - (23 Dec.)
2006 XO4 2007-01-28 0.027615 74 23.31 9 - (24 Dec.)
2006 YA 2007-01-31 0.048178 84 23.04 8 - (24 Dec.)
2003 WP25 2007-02-07 0.023419 45 24.38 3op - (9 Dec.)
2006 YH2 2007-02-08 0.098228 28 25.45 1 - (22 Dec.)
2006 XP4 2007-02-15 0.004109 59 23.78 10 - risk listed - (24 Dec.)
2006 YJ2 2007-02-19 0.092191 121 22.24 2 - (24 Dec.)
2006 XY2 2007-02-21 0.182263 107 22.50 9 - (23 Dec.)
2006 XY 2007-02-25 0.006955 54 24.00 10 - (22 Dec.)
Viewing by designation order - see also Viewing by date order
Object View until MOID AU Dia H Arc Notes (calc date)
---------- ---------- -------- --- ----- --- - -----------------------
2006 YX2 2007-01-03 0.066038 51 24.11 1 - (23 Dec.)
2006 YJ2 2007-02-19 0.092191 121 22.24 2 - (24 Dec.)
2006 YH2 2007-02-08 0.098228 28 25.45 1 - (22 Dec.)
2006 YP 2007-01-15 0.025772 66 23.55 7 - (24 Dec.)
2006 YM 2007-01-11 0.023503 45 24.40 3 - (21 Dec.)
2006 YB 2007-01-15 0.054028 53 24.04 7 - (24 Dec.)
2006 YA 2007-01-31 0.048178 84 23.04 8 - (24 Dec.)
2006 XW4 2007-01-04 0.004396 46 24.32 7 - (23 Dec.)
2006 XV4 2007-01-07 0.004340 36 24.89 10 - was risk listed - (24 Dec.)
2006 XQ4 2007-01-05 0.052500 20 26.12 6 - (22 Dec.)
2006 XP4 2007-02-15 0.004109 59 23.78 10 - risk listed - (24 Dec.)
2006 XO4 2007-01-28 0.027615 74 23.31 9 - (24 Dec.)
2006 XN4 2007-01-15 0.035044 59 23.81 10 - (24 Dec.)
2006 XA3 2006-12-25 0.014467 31 25.20 8 - was risk listed - (22 Dec.)
2006 XY2 2007-02-21 0.182263 107 22.50 9 - (23 Dec.)
2006 XX2 2006-12-25 0.017351 33 25.05 8 - (23 Dec.)
2006 XJ2 2007-01-02 0.115176 53 24.02 10 - (23 Dec.)
2006 XY 2007-02-25 0.006955 54 24.00 10 - (22 Dec.)
2006 XX 2007-01-16 0.079770 65 23.57 3 - past obs. - (15 Dec.)
2006 XW 2007-01-12 0.058841 61 23.71 5 - past obs. - (16 Dec.)
2006 WK130 2006-12-31 0.020025 114 22.36 22 - was risk listed - (22 Dec.)
2006 WH130 2006-12-26 0.089924 61 23.74 3 - past obs. - (8 Dec.)
2006 WP3 2006-12-28 0.023053 69 23.47 31 - (22 Dec.)
2006 VP13 2006-12-31 0.068105 67 23.52 12 - past obs. - (28 Nov.)
2006 UA216 2006-12-30 0.014660 66 23.56 25 - past obs. - (10 Dec.)
2006 UP 2006-12-28 0.112397 84 23.04 38 - past obs. - (24 Nov.)
2006 UF 2007-01-11 0.170877 115 22.35 66 - (22 Dec.)
2006 TO 2006-12-30 0.183767 88 22.93 70 - was risk listed - past obs. - (12 Dec.)
2006 SP198 2007-01-01 0.277909 144 21.85 78 - past obs. - (14 Dec.)
2006 SV5 2007-01-14 0.035879 80 23.14 96 - (22 Dec.)
2006 BJ55 2007-01-02 0.027616 49 24.21 14 - faint recov. poss. - past obs. - (8 Nov.)
2005 CN 2007-01-25 0.029211 85 23.01 3op - "only 1 night" - (23 Dec.)
2004 XK14 2006-12-28 0.025282 120 22.25 15 - faint recov. poss. - (8 Nov.)
2003 WP25 2007-02-07 0.023419 45 24.38 3op - (9 Dec.)
Out-of-view date based on MPES solar elongation <40° and/or magnitude V>22.0 at 1200 UT
geocentric. (Not factored in is any lunar interference with viewing.)
Objects are linked in the left-most column only if observed in the last seven days,
while objects with earlier small-object reporting are linked under "Notes."
Diameter ("Dia") is in meters, a very rough estimate from brightness (H).
Observing "Arc" is from MPES in days or number of oppositions.
"In view" does not necessarily mean locatable for objects with short arcs in prior years
and for which a large search or accidental rediscovery are the best hopes.
Small object observation cross index [ size order | 48 Hours | viewing | top ]
| Object | Observed by MPC code |
|---|
| 2005 CN | 291 |
| 2006 SV5 | 291 |
| 2006 UF | 291 |
| 2006 WK130 | F65 |
| 2006 WP3 | 291 |
| 2006 WZ184 | 291 |
| 2006 XA3 | 691, G96 |
| 2006 XJ2 | G96 |
| 2006 XN4 | 246, 703, A50 |
| 2006 XO4 | 246, 703, F84, G96 |
| 2006 XP4 | 246, 291, 703, F65, G96 |
| 2006 XQ4 | 291, G96 |
| 2006 XV4 | 143, F84, G96, H45 |
| 2006 XW4 | 715, G96 |
| 2006 XX2 | G96 |
| 2006 XY | 844 |
| 2006 XY2 | 291, 691, G96 |
| 2006 XZ2 | F65, G96 |
| 2006 YA | 143, 246, A17, A48, G96, H45 |
| 2006 YB | G96 |
| 2006 YH2 | 291, F65 |
| 2006 YJ2 | 246, 474, 854, E12, G96, I77 |
| 2006 YM | 143, 408, 704, J95 |
| 2006 YP | 540, 703 |
| 2006 YX2 | 704, 734, G96 |
|
| Code | Observatory | Objects Observed |
|---|
| 143 | Gnosca Obs. | 2006 XV4, 2006 YA, 2006 YM |
| 246 | KLENOT | 2006 XN4, 2006 XO4, 2006 XP4, 2006 YA, 2006 YJ2 |
| 291 | Spacewatch 1.8m telescope | 2005 CN, 2006 SV5, 2006 UF, 2006 WP3, 2006 WZ184, 2006 XP4, 2006 XQ4, 2006 XY2, 2006 YH2 |
| 408 | Nyukasa Obs. | 2006 YM |
| 474 | Mt. John Obs. | 2006 YJ2 |
| 540 | Linz Obs. | 2006 YP |
| 691 | Spacewatch 0.9m telescope | 2006 XA3, 2006 XY2 |
| 703 | Catalina Sky Survey | 2006 XN4, 2006 XO4, 2006 XP4, 2006 YP |
| 704 | LINEAR | 2006 YM, 2006 YX2 |
| 715 | Jornada Obs. | 2006 XW4 |
| 734 | Farpoint Obs. | 2006 YX2 |
| 844 | Los Molinos Obs. | 2006 XY |
| 854 | Sabino Canyon Obs. | 2006 YJ2 |
| A17 | Guidestar Obs. | 2006 YA |
| A48 | Verona Obs. | 2006 YA |
| A50 | Andrushivka Obs. | 2006 XN4 |
| E12 | Siding Spring Survey | 2006 YJ2 |
| F651 | Faulkes Telescope North - UKAPP | 2006 WK130, 2006 XP4, 2006 XZ2 |
| F654 | Faulkes Telescope North - Jim Bedient | 2006 YH2 |
| F84 | Hibiscus Obs. | 2006 XO4, 2006 XV4 |
| G96 | Mt. Lemmon Survey | 2006 XA3, 2006 XJ2, 2006 XO4, 2006 XP4, 2006 XQ4, 2006 XV4, 2006 XW4, 2006 XX2, 2006 XY2, 2006 XZ2, 2006 YA, 2006 YB, 2006 YJ2, 2006 YX2 |
| H45 | Petit Jean Mtn. South Obs. | 2006 XV4, 2006 YA |
| I77 | CEAMIG-REA | 2006 YJ2 |
| J95 | Great Shefford Obs. | 2006 YM |
|
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