Earth's Busy Neighborhood
ACC's Small Object Report for 25-31 December 2006
A semi-automated report compiled on 31 December 2006 at 2359 UTC
Twenty-three small asteroids reported in the last 168 hours, during which three were newly discovered.
Currently 1,212 NEAs are listed with H>22.0 by JPL and/or the MPC (1,029 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 |
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- Dec. 31: The last Daily Orbit Update (DOU) MPEC of the year, Sunday's 2006-Y74, reports observations of four small asteroids, including the recovery of 1999 NW2 by David Tholen's team on Mauna Kea in Hawaii. Table Mountain Observatory both yesterday and this morning UT in southern California, and Great Shefford Observatory this morning in England, provided the first follow-up for 2006 YP44, which had had a very short discovery arc and has now been delisted as an impact risk. Hibiscus Observatory in Tahiti added about nine days to what had been a ten-day observing arc for 2006 XY. And the Catalina Sky Survey in Arizona tracked 2006 YJ2.
Although first reported in the DOU, the impressive recovery of 1999 NW2 at magnitude R=24.1-.2 on 25-26 December was accorded its own update MPEC 2006-Y75 eleven hours after the DOU. The astrometry was repeated but details added include credit to the observer, Fabrizio Bernardi, and to the telescope, the University of Hawaii's 2.2-meter.
1999 NW2 was discovered by LINEAR from New Mexico on 13 July 1999, as reported in MPEC 1999-N34, and was observed by radar from Goldstone in southern California six days later. Listed as a faint recovery possibility for about two weeks in February-March of this year, 1999 NW2 until now had been last reported observed optically by the 1.8m Plaskett Telescope in British Columbia in August 1999.
- Dec. 30: Saturday's DOU MPEC 2006-Y73 reports observations of three small asteroids. KLENOT in the Czech Republic tracked risk-rated 2006 XP4 as well as 2006 YD12, and Lumezzane Observatory in Italy observed 2006 YA.
- Dec. 29: Discovery of small asteroid 2006 YP44 leads the news for Friday. It was found this morning by the Mt. Lemmon Survey in Arizona and was quickly confirmed by Sandlot Observatory in Kansas and Robert Hutsebaut in Belgium working via RAS Observatory in New Mexico. It was announced with a 6.66-hour observing arc and has since been listed as a low-rated impact risk.
Today's DOU MPEC 2006-Y68 reports observations of six small asteroids. Naef Observatory in Switzerland kept after risk-rated 2006 XP4, Begues Observatory in Spain tracked 2006 YJ2, and observations from within their observation arcs are reported for
2006 XH2 from Gnosca Observatory in Switzerland, 2006 XW4 from Jornada Observatory in New Mexico, 2006 YD12 from Antares Observatory in Illinois, and 2006 YA from Stia and Castelmartini observatories in Italy.
- Dec. 28: DOU MPEC 2006-Y51 on Thursday reports observations of eight small asteroids. David Tholen's team on Mauna Kea has again picked up 2000 SJ344, reporting it from three days ago at magnitude R=22.3 and 22.5. The team discovered this object on 30 September 2000 and confirmed the discovery during early October that year as reported in MPEC 2000-U20. It was observed sporadically over a period of 200 days until April 18th, collecting a total of 22 astrometric positions, of which only two were not from Tholen's team. In April of this year it was reported that the team had recovered 2006 SJ344 in two sets of two positions separated by 35 days in May and June of last year for a second opposition. And then in May came news that they had recovered it again on the 30th of April. The work in today's DOU extends the arc of 2006 SJ344's third opposition to just over 238 days between two sets of two positions.
Spacewatch with its 1.8-meter telescope and the Mt. Lemmon Survey (MLS), both in Arizona, and KLENOT in the Czech Republic, all kept after risk-listed 2006 XP4. 2006 XY2 was also tracked with the Spacewatch 1.8-meter and 2006 XV4 by the MLS, and KLENOT observed 2006 YJ2 and 2006 YD12 and extended 2006 YH14's discovery arc by about three hours. And Petit Jean Mountain South Observatory in Arkansas and Drebach Observatory in Germany reported 2006 YA.
- Dec. 27 #2: The discovery of small asteroid 2006 YH14 has been announced late today UT. It was found and first confirmed this morning by the Catalina Sky Survey in Arizona and was confirmed this evening by Drebach Observatory in Germany.
- Dec. 27 #1: DOU MPEC 2006-Y51 on Wednesday reports observations of nine small asteroids. KLENOT in the Czech Republic tracked risk-listed 2006 XP4 as well as 2006 XO4, 2006 YB, and 2006 YD12. Farpoint Observatory in Kansas observed 2006 YP and doubled the observation arc to about eight days for 2006 YM, which was also reported from Verona Observatory in Italy from December 22nd. Verona also tracked 2006 YA along with Alter Satzberg and Remanzacco observatories in Austria and Italy. Parma Observatory in Italy observed 2006 YJ2. And Jornada Observatory in New Mexico reported additional positions for 2006 XX from yesterday morning.
- Dec. 26: Tuesday's DOU MPEC 2006-Y47 reports observations of a half-dozen small asteroids. 2006 XX had its three-day observing arc extended by thirteen days by Antares Observatory in Illinois, which observed it on the 24th, and by the Spacewatch 1.8-meter telescope in Arizona on the 25th, and Jornada Observatory in New Mexico this morning. The Spacewatch 1.8-meter also observed 2006 XY2 and, with KLENOT in the Czech Republic, followed risk-rated 2006 XP4. Antares also reported 2005 CN. New Millennium Observatory in Italy tracked 2006 YA. And 2006 YD12's discovery arc was extended by about nine hours by Junk Bond Observatory in Arizona and by Robert Hutsebaut in Belgium working via RAS Observatory in New Mexico.
- Dec. 25 #2: Today's DOU MPEC 2006-Y44 reports observations of a dozen small asteroids. Spacewatch in Arizona with its 1.8-meter telescope provided the first follow-up for its own discovery, 2006 YH2, and added ten days to the two-day observing arc for 2006 XH2, an object that is calculated to come even closer to Mars and Venus than to Earth and which went out of view for most NEO observers a few days ago. That telescope was also used to add nine days to 2006 XW's five-day arc and to extend the arc from 22 to 33 days for 2006 WX3, which is now out of view for most NEO observers. And, with the Mt. Lemmon Survey (MLS), it kept after risk-listed 2006 XP4. MLS observed 2006 XN4, 2006 XW4, and 2006 YB, and, with Parma Observatory in Italy, observed 2006 YA. And 2006 XO4 was reported from Andrushivka Observatory in the Ukraine, 2006 YM from Schiaparelli Observatory in Italy, and 2006 YJ2 from the Catalina Sky Survey in Arizona.
- Dec. 25 #1: Early on Monday UT the discovery of small asteroid 2006 YD12 has been announced, found on the morning of the 23rd by the Catalina Sky Survey in Arizona, which confirmed it along with eleven other observing facilities.
- See news from the week of 18-24 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 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 0.098905 AU (38.48 LD).
Observations are reported from the following observatories in MPEC 2006-Y44:
Spacewatch 1.8m telescope [291]
2006-12-24 0805-0821, 3 pos. in MPEC 2006-Y44, follow-up (H)
See also information from the week ending 24 Dec. 2006.
2006 XV4 (K06X04V) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 36 meters per JPL H=24.87, MPC H=24.9
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 0.004566 AU (1.78 LD),
and reports this object passed Earth at 5.2 lunar distances (LD) on 12 Dec. 2006 at 0518 UT.
Observations are reported from the following observatories in MPEC 2006-Y55:
Mt. Lemmon Survey (MLS) [G96]
2006-12-27 0701-0732, 4 pos. in MPEC 2006-Y55, follow-up
See also information from the week ending 24 Dec. 2006.
2006 YM (K06Y00M) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 44 meters per JPL H=24.41, MPC H=24.4
JPL classifies 2006 YM as an Aten and calculates an Earth MOID of 0.023524 AU (9.15 LD),
and reports this object passed Earth at 10.0 LD on 20 Dec. 2006 at 0358 UT.
Observations are reported from the following observatories in MPECs 2006-Y44 and 2006-Y51:
Schiaparelli Obs. [204]
2006-12-22 0408-0417, 3 pos. in MPEC 2006-Y44, follow-up
Verona Obs. [A48]
2006-12-22 2229-2233, 4 pos. in MPEC 2006-Y51, follow-up
Farpoint Obs. [734]
2006-12-26 0525-0531, 3 pos. in MPEC 2006-Y51, follow-up
See also information from the week ending 24 Dec. 2006.
2006 XW4 (K06X04W) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 47 meters per JPL H=24.28, MPC H=24.3
JPL classifies 2006 XW4 as an Apollo and calculates an Earth MOID of 0.005588 AU (2.17 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-Y44 and 2006-Y68:
Mt. Lemmon Survey (MLS) [G96]
2006-12-24 0519-0553, 3 pos. in MPEC 2006-Y44, follow-up
Jornada Obs. [715]
2006-12-26 0254-0321, 2 pos. in MPEC 2006-Y68, follow-up (I)
See also information from the week ending 24 Dec. 2006.
2006 XH2 (K06X02H) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 48 meters per JPL H=24.26, MPC H=24.4
JPL classifies 2006 XH2 as an Apollo and calculates an Earth MOID of 0.013244 AU (5.15 LD),
and reports this object passed Earth at 7.9 LD on 6 Dec. 2006 at 1857 UT.
Lowell Observatory reports 2006 XH2 has significant MOIDs with planets Venus (0.00393 AU =
1.53 LD) and Mars (0.00134 AU = 0.52 LD).
Observations are reported from the following observatories in MPECs 2006-Y44 and 2006-Y68:
Gnosca Obs. [143]
2006-12-13 2053-2124, 3 pos. in MPEC 2006-Y68, follow-up
Spacewatch 1.8m telescope [291]
2006-12-24 0730-0753, 3 pos. in MPEC 2006-Y44, follow-up (H)
See also information from the week ending 17 Dec. 2006.
2006 YB (K06Y00B) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 52 meters per JPL H=24.05, MPC H=24.0
JPL classifies 2006 YB as an Apollo and calculates an Earth MOID of 0.053988 AU (21.01 LD),
and reports this object passed Earth at 31.8 LD on 26 Dec. 2006.
Observations are reported from the following observatories in MPECs 2006-Y44 and 2006-Y51:
Mt. Lemmon Survey (MLS) [G96]
2006-12-24 0849-0914, 4 pos. in MPEC 2006-Y44, follow-up
KLENOT [246]
2006-12-27 0126-0132, 3 pos. in MPEC 2006-Y51, follow-up
See also information from the week ending 24 Dec. 2006.
2006 XY (K06X00Y) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 54 meters per JPL H=23.99, MPC H=24.0
JPL classifies 2006 XY as an Apollo and calculates an Earth MOID of 0.006953 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-Y74:
Hibiscus Obs. [F84]
2006-12-30 1254-1313, 2 pos. in MPEC 2006-Y74, follow-up
See also information from the week ending 24 Dec. 2006.
2006 XN4 (K06X04N) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 58 meters per JPL H=23.82, MPC H=24.0
JPL classifies 2006 XN4 as an Apollo and calculates an Earth MOID of 0.035054 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 MPEC 2006-Y44:
Mt. Lemmon Survey (MLS) [G96]
2006-12-24 0924-0955, 4 pos. in MPEC 2006-Y44, follow-up
See also information from the week ending 24 Dec. 2006.
2006 XP4 (K06X04P) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 59 meters per JPL H=23.79, 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 0.004114 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 0.02026 AU (7.88 LD) with Venus.
Observations are reported from the following observatories in MPECs 2006-Y44, 2006-Y47,
2006-Y51, 2006-Y55, 2006-Y68, and 2006-Y73:
Mt. Lemmon Survey (MLS) [G96]
2006-12-24 0848-0905, 3 pos. in MPEC 2006-Y44, follow-up
2006-12-27 0700-0730, 4 pos. in MPEC 2006-Y55, follow-up
Spacewatch 1.8m telescope [291]
2006-12-24 1146-1157, 3 pos. in MPEC 2006-Y44, follow-up
2006-12-25 0638-0651, 2 pos. in MPEC 2006-Y47, follow-up (t)
2006-12-26 0623-0635, 3 pos. in MPEC 2006-Y47, follow-up (t)
2006-12-27 0651-0708, 3 pos. in MPEC 2006-Y55, follow-up (t)
KLENOT [246]
2006-12-25 0018-0025, 2 pos. in MPEC 2006-Y47, follow-up
2006-12-27 0015-0019, 4 pos. in MPEC 2006-Y51, follow-up
2006-12-27 2243-2249, 7 pos. in MPEC 2006-Y55, follow-up
2006-12-29 2359-0003, 4 pos. in MPEC 2006-Y73, follow-up
Naef Obs. [A13]
2006-12-28 2204-2300, 2 pos. in MPEC 2006-Y68, follow-up
See also information from the week ending 24 Dec. 2006.
2006 XW (K06X00W) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 61 meters per JPL H=23.72, MPC H=23.6
JPL classifies 2006 XW as an Amor and calculates an Earth MOID of 0.057782 AU (22.48 LD).
Observations are reported from the following observatories in MPEC 2006-Y44:
Spacewatch 1.8m telescope [291]
2006-12-24 0658-0711, 3 pos. in MPEC 2006-Y44, 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: 64 meters per JPL H=23.61, MPC H=23.6
JPL classifies 2006 YP as an Apollo and calculates an Earth MOID of 0.025888 AU (10.07 LD),
and reports this object passed Earth at 22.6 LD on 30 Dec. 2006.
Observations are reported from the following observatories in MPEC 2006-Y51:
Farpoint Obs. [734]
2006-12-26 1007-1028, 4 pos. in MPEC 2006-Y51, follow-up
See also information from the week ending 24 Dec. 2006.
2006 YP44 (K06Y44P) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 67 meters per JPL H=23.53, MPC H=23.5
This object was listed from 29 Dec. 2006 until today (31 Dec.) as an impact risk.
JPL classifies 2006 YP44 as an Apollo and calculates an Earth MOID of 0.001321 AU (0.51 LD),
and reports this object passed Earth at 14.2 LD on 26 Dec. 2006.
Lowell Observatory reports 2006 YP44 has an MOID of 0.00255 AU (0.99 LD) with Mars.
Observations are reported from the following observatories in MPECs 2006-Y70 and 2006-Y74:
Mt. Lemmon Survey (MLS) [G96]
2006-12-29 0238-0451, 11 pos. in MPEC 2006-Y70, discovery (*)
Sandlot Obs. [H36]
2006-12-29 0449-0459, 5 pos. in MPEC 2006-Y70, confirmation
RAS Obs. [H06{2}] coded to Robert Hutsebaut
2006-12-29 0904-0917, 3 pos. in MPEC 2006-Y70, confirmation
Table Mountain Obs. [673{5}] coded to Jim Young
2006-12-30 0553-0606, 3 pos. in MPEC 2006-Y74, follow-up
2006-12-31 0410-0431, 4 pos. in MPEC 2006-Y74, follow-up
Great Shefford Obs. [J95]
2006-12-31 0236-0243, 3 pos. in MPEC 2006-Y74, follow-up
2006 XX (K06X00X) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 69 meters per JPL H=23.45, MPC H=23.3
JPL classifies 2006 XX as an Amor and calculates an Earth MOID of 0.079887 AU (31.08 LD),
and reports this object passed Earth at 31.5 LD on 22 Nov. 2006.
Observations are reported from the following observatories in MPECs 2006-Y47 and 2006-Y51:
Antares Obs. [H55]
2006-12-24 0608-0629, 4 pos. in MPEC 2006-Y47, follow-up
Spacewatch 1.8m telescope [291]
2006-12-25 0617-0630, 3 pos. in MPEC 2006-Y47, follow-up
Jornada Obs. [715]
2006-12-26 0353-0437, 5 pos. in MPECs 2006-Y47 -Y51, follow-up
See also information from the week ending 17 Dec. 2006.
2006 XO4 (K06X04O) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 72 meters per JPL H=23.37, MPC H=23.4
JPL classifies 2006 XO4 as an Aten and calculates an Earth MOID of 0.027635 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-Y44 and 2006-Y51:
Andrushivka Obs. [A50]
2006-12-16 2234-2250, 5 pos. in MPEC 2006-Y44, follow-up
KLENOT [246]
2006-12-26 2354-2356, 3 pos. in MPEC 2006-Y51, follow-up
See also information from the week ending 24 Dec. 2006.
2006 YH14 (K06Y14H) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 78 meters per JPL H=23.19, MPC H=23.2
JPL classifies 2006 YH14 as an Amor and calculates an Earth MOID of 0.091540 AU (35.62 LD),
and reports this object will pass Earth at 38.7 LD on 13 Jan. 2007.
Observations are reported from the following observatories in MPECs 2006-Y54 and 2006-Y55:
Catalina Sky Survey (CSS) [703]
2006-12-27 0557-0635, 4 pos. in MPEC 2006-Y54, discovery (*)
2006-12-27 0900-0903, 3 pos. in MPEC 2006-Y54, confirmation
2006-12-27 1048-1050, 2 pos. in MPEC 2006-Y54, confirmation
Drebach Obs. [113]
2006-12-27 1958-2002, 3 pos. in MPEC 2006-Y54, confirmation
KLENOT [246]
2006-12-27 2253-2300, 6 pos. in MPEC 2006-Y55, follow-up
1999 NW2 (J99N02W) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 80 meters per JPL H=23.14, MPC H=23.2
JPL classifies 1999 NW2 as an Apollo and calculates an Earth MOID of 0.016287 AU (6.34 LD).
Observations are reported from the following observatories in MPECs 2006-Y74 and 2006-Y75:
Mauna Kea [568{2}] coded to David Tholen et al.
2006-12-25 0551-0623, 8 pos. in MPECs 2006-Y74 -Y75, follow-up
2006-12-26 0529-0539, 4 pos. in MPECs 2006-Y74 -Y75, follow-up
2006 YA (K06Y00A) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 82 meters per JPL H=23.08, MPC H=23.1
JPL classifies 2006 YA as an Apollo and calculates an Earth MOID of 0.048702 AU (18.95 LD),
and reports this object passed Earth at 19.7 LD on 29 Dec. 2006.
Observations are reported from the following observatories in MPECs 2006-Y44, 2006-Y47,
2006-Y51, 2006-Y55, 2006-Y68, and 2006-Y73:
Mt. Lemmon Survey (MLS) [G96]
2006-12-24 0526-0559, 2 pos. in MPEC 2006-Y44, follow-up
Stia Obs. [A78]
2006-12-24 1916-1935, 4 pos. in MPEC 2006-Y68, follow-up
Parma Obs. [A56]
2006-12-24 2140-2228, 4 pos. in MPEC 2006-Y44, follow-up
New Millennium Obs. [A24]
2006-12-25 2323-2325, 2 pos. in MPEC 2006-Y47, follow-up
Alter Satzberg Obs. [B03]
2006-12-26 1834-1848, 5 pos. in MPEC 2006-Y51, follow-up
Verona Obs. [A48]
2006-12-26 2143-2148, 4 pos. in MPEC 2006-Y51, follow-up
Remanzacco Obs. [473]
2006-12-26 2353-0023, 4 pos. in MPEC 2006-Y51, follow-up
Petit Jean Mountain South Obs. [H45]
2006-12-27 0713-0719, 7 pos. in MPEC 2006-Y55, follow-up
Lumezzane Obs. [130]
2006-12-27 1711-1716, 4 pos. in MPEC 2006-Y73, follow-up
Drebach Obs. [113]
2006-12-27 1815-1818, 5 pos. in MPEC 2006-Y55, follow-up
Castelmartini Obs. [160]
2006-12-27 1917-1923, 3 pos. in MPEC 2006-Y68, follow-up
See also information from the week ending 24 Dec. 2006.
2005 CN (K05C00N) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 86 meters per JPL H=22.97, MPC H=23.0
JPL classifies 2005 CN as an Apollo and calculates an Earth MOID of 0.029212 AU (11.37 LD).
Observations are reported from the following observatories in MPEC 2006-Y47:
Antares Obs. [H55]
2006-12-24 0516-0532, 3 pos. in MPEC 2006-Y47, follow-up
See also information from the week ending 24 Dec. 2006.
2006 YD12 (K06Y12D) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 102 meters per JPL H=22.61, MPC H=22.6
JPL classifies 2006 YD12 as an Amor and calculates an Earth MOID of 0.044382 AU (17.27 LD),
and reports this object will pass Earth at 36.0 LD on 2 Jan. 2007.
Observations are reported from the following observatories in MPECs 2006-Y43, 2006-Y47,
2006-Y51, 2006-Y55, 2006-Y68, and 2006-Y73:
Catalina Sky Survey (CSS) [703]
2006-12-23 1020-1140, 8 pos. in MPEC 2006-Y43, discovery (*)
2006-12-23 1252-1253, 2 pos. in MPEC 2006-Y43, confirmation
2006-12-24 0908-0911, 4 pos. in MPEC 2006-Y43, confirmation
Andrushivka Obs. [A50]
2006-12-23 1957-2011, 5 pos. in MPEC 2006-Y43, confirmation
Guidestar Obs. [A17]
2006-12-23 2303-2346, 3 pos. in MPEC 2006-Y43, confirmation
KLENOT [246]
2006-12-24 0011-0018, 4 pos. in MPEC 2006-Y43, confirmation
2006-12-24 2345-2349, 5 pos. in MPEC 2006-Y43, confirmation
2006-12-27 0040-0047, 7 pos. in MPEC 2006-Y51, follow-up
2006-12-28 0155-0200, 6 pos. in MPEC 2006-Y55, follow-up
2006-12-30 0111-0118, 7 pos. in MPEC 2006-Y73, follow-up
Remanzacco Obs. [473]
2006-12-24 0101-0114, 4 pos. in MPEC 2006-Y43, confirmation
Sabino Canyon Obs. [854]
2006-12-24 0624-0639, 3 pos. in MPEC 2006-Y43, confirmation
Antares Obs. [H55]
2006-12-24 0732-0754, 3 pos. in MPEC 2006-Y43, confirmation
2006-12-27 0812-0829, 2 pos. in MPEC 2006-Y68, follow-up
Farpoint Obs. [734]
2006-12-24 0750-0803, 3 pos. in MPEC 2006-Y43, confirmation
Junk Bond Obs. [701]
2006-12-24 1001-1025, 4 pos. in MPEC 2006-Y43, confirmation
2006-12-25 0953-1025, 5 pos. in MPEC 2006-Y47, follow-up
RAS Obs. [H06{2}] coded to Robert Hutsebaut
2006-12-24 1019-1035, 2 pos. in MPEC 2006-Y43, confirmation
2006-12-25 1041-1059, 3 pos. in MPEC 2006-Y47, follow-up
Gnosca Obs. [143]
2006-12-24 2219-2227, 2 pos. in MPEC 2006-Y43, confirmation
Ceccano Obs. [470]
2006-12-25 0048-0056, 4 pos. in MPEC 2006-Y43, confirmation
2000 SJ344 (K00SY4J) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 103 meters per JPL H=22.58, MPC H=22.6
JPL classifies 2000 SJ344 as an Apollo and calculates an Earth MOID of 0.046056 AU (17.92 LD).
Observations are reported from the following observatories in MPEC 2006-Y55:
Mauna Kea [568{2}] coded to David Tholen et al.
2006-12-25 0524-0529, 2 pos. in MPEC 2006-Y55, follow-up
See also information from the week ending 7 May 2006.
2006 XY2 (K06X02Y) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 104 meters per JPL H=22.56, MPC H=22.5
JPL classifies 2006 XY2 as an Amor and calculates an Earth MOID of 0.182399 AU (70.97 LD).
Observations are reported from the following observatories in MPECs 2006-Y47 and 2006-Y55:
Spacewatch 1.8m telescope [291]
2006-12-25 0719-0732, 3 pos. in MPEC 2006-Y47, follow-up (t)
2006-12-27 0632-0632, 1 pos. in MPEC 2006-Y55, follow-up (t)
See also information from the week ending 24 Dec. 2006.
2006 WX3 (K06W03X) [ 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 WX3 as an Apollo and calculates an Earth MOID of 0.114149 AU (44.42 LD).
Observations are reported from the following observatories in MPEC 2006-Y44:
Spacewatch 1.8m telescope [291]
2006-12-24 0852-0925, 3 pos. in MPEC 2006-Y44, follow-up (H)
See also information from the week ending 17 Dec. 2006.
2006 YJ2 (K06Y02J) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 125 meters per JPL H=22.16, MPC H=22.2
JPL classifies 2006 YJ2 as an Amor and calculates an Earth MOID of 0.092155 AU (35.86 LD),
and reports this object passed Earth at 38.5 LD on 25 Dec. 2006.
Observations are reported from the following observatories in MPECs 2006-Y44, 2006-Y51,
2006-Y55, 2006-Y68, and 2006-Y74:
Catalina Sky Survey (CSS) [703]
2006-12-24 0538-0606, 4 pos. in MPEC 2006-Y44, follow-up
2006-12-30 0440-0504, 4 pos. in MPEC 2006-Y74, follow-up
Parma Obs. [A56]
2006-12-25 2029-2051, 4 pos. in MPEC 2006-Y51, follow-up
KLENOT [246]
2006-12-27 2217-2222, 8 pos. in MPEC 2006-Y55, follow-up
Begues Obs. [170]
2006-12-29 0007-0011, 4 pos. in MPEC 2006-Y68, follow-up
See also information from the week ending 24 Dec. 2006.
48+120 Hours [ Objects Listings (size order) | Object Index (alpha/xref) | top ]
Observations of 23 small objects were reported during the last 168 hours:
1999 NW2, 2000 SJ344, 2005 CN, 2006 WX3, 2006 XH2, 2006 XN4, 2006 XO4, 2006 XP4,
2006 XV4, 2006 XW, 2006 XW4, 2006 XX, 2006 XY, 2006 XY2, 2006 YA, 2006 YB,
2006 YD12, 2006 YH2, 2006 YH14, 2006 YJ2, 2006 YM, 2006 YP & 2006 YP44
in MPECs:
2006-Y43 time-stamped 2006 Dec. 25, 01:50 UT - 2006 YD12
2006-Y44 time-stamped 2006 Dec. 25, 07:09 UT - Daily Orbit Update
2006-Y47 time-stamped 2006 Dec. 26, 07:08 UT - Daily Orbit Update
2006-Y51 time-stamped 2006 Dec. 27, 07:08 UT - Daily Orbit Update
2006-Y54 time-stamped 2006 Dec. 27, 20:45 UT - 2006 YH14
2006-Y55 time-stamped 2006 Dec. 28, 07:08 UT - Daily Orbit Update
2006-Y68 time-stamped 2006 Dec. 29, 07:09 UT - Daily Orbit Update
2006-Y70 time-stamped 2006 Dec. 29, 12:58 UT - 2006 YP44
2006-Y73 time-stamped 2006 Dec. 30, 07:09 UT - Daily Orbit Update
2006-Y74 time-stamped 2006 Dec. 31, 07:10 UT - Daily Orbit Update
2006-Y75 time-stamped 2006 Dec. 31, 18:31 UT - 1999 NW2
Date & times for other sources that were parsed to compile this page:
JPL Close Approaches, downloaded at 2006 Dec. 31, 1635 UTC
JPL NEO Orbital Elements, downloaded at 2006 Dec. 31, 1641 UTC
Lowell Observatory Orbit intersections, time-stamped 2006 Dec 30 1944:58 UTC
MPC NEA.DAT from MPC mirror, downloaded at 2006 Dec. 31, 2054 UTC
Risk monitoring sites, as of A/CC's check at 2006 Dec. 31, 1629 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 27 small objects as being currently in view,
including 8 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 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 - past obs. - (23 Dec.)
2006 YX2 2007-01-03 0.066038 51 24.11 1 - past obs. - (23 Dec.)
2006 YH2 2007-01-04 0.098905 28 25.45 3 - (25 Dec.)
2006 XQ4 2007-01-05 0.052500 20 26.12 6 - past obs. - (22 Dec.)
2006 XW4 2007-01-05 0.005588 47 24.28 9 - (29 Dec.)
2006 XV4 2007-01-07 0.004566 36 24.87 14 - was risk listed - (28 Dec.)
2006 UF 2007-01-11 0.170877 115 22.35 66 - past obs. - (22 Dec.)
2006 YM 2007-01-11 0.023524 44 24.41 8 - (27 Dec.)
2006 XW 2007-01-12 0.057782 61 23.72 14 - (25 Dec.)
2006 SV5 2007-01-14 0.035879 80 23.14 96 - past obs. - (22 Dec.)
2006 XN4 2007-01-14 0.035054 58 23.82 10 - (25 Dec.)
2006 YP 2007-01-15 0.025888 64 23.61 9 - (27 Dec.)
2006 YB 2007-01-16 0.053988 52 24.05 11 - (27 Dec.)
2006 XX 2007-01-20 0.079887 69 23.45 16 - (27 Dec.)
2005 CN 2007-01-27 0.029212 86 22.97 3op - (26 Dec.)
2006 XO4 2007-01-27 0.027635 72 23.37 13 - (27 Dec.)
2006 YA 2007-01-29 0.048702 82 23.08 12 - (30 Dec.)
2006 YP44 2007-02-03 0.001321 67 23.53 2 - was risk listed - (31 Dec.)
2003 WP25 2007-02-07 0.023419 45 24.38 3op - (9 Dec.)
2006 XP4 2007-02-15 0.004114 59 23.79 16 - risk listed - (30 Dec.)
2006 XY2 2007-02-18 0.182399 104 22.56 14 - (28 Dec.)
2006 YJ2 2007-02-19 0.092155 125 22.16 9 - (31 Dec.)
2006 XY 2007-02-25 0.006953 54 23.99 19 - (31 Dec.)
2006 YH14 2007-03-15 0.091540 78 23.19 1 - (28 Dec.)
2006 YD12 2007-04-18 0.044382 102 22.61 7 - (30 Dec.)
Viewing by designation order - see also Viewing by date order
Object View until MOID AU Dia H Arc Notes (calc date)
---------- ---------- -------- --- ----- --- - -----------------------
2006 YP44 2007-02-03 0.001321 67 23.53 2 - was risk listed - (31 Dec.)
2006 YH14 2007-03-15 0.091540 78 23.19 1 - (28 Dec.)
2006 YD12 2007-04-18 0.044382 102 22.61 7 - (30 Dec.)
2006 YX2 2007-01-03 0.066038 51 24.11 1 - past obs. - (23 Dec.)
2006 YJ2 2007-02-19 0.092155 125 22.16 9 - (31 Dec.)
2006 YH2 2007-01-04 0.098905 28 25.45 3 - (25 Dec.)
2006 YP 2007-01-15 0.025888 64 23.61 9 - (27 Dec.)
2006 YM 2007-01-11 0.023524 44 24.41 8 - (27 Dec.)
2006 YB 2007-01-16 0.053988 52 24.05 11 - (27 Dec.)
2006 YA 2007-01-29 0.048702 82 23.08 12 - (30 Dec.)
2006 XW4 2007-01-05 0.005588 47 24.28 9 - (29 Dec.)
2006 XV4 2007-01-07 0.004566 36 24.87 14 - was risk listed - (28 Dec.)
2006 XQ4 2007-01-05 0.052500 20 26.12 6 - past obs. - (22 Dec.)
2006 XP4 2007-02-15 0.004114 59 23.79 16 - risk listed - (30 Dec.)
2006 XO4 2007-01-27 0.027635 72 23.37 13 - (27 Dec.)
2006 XN4 2007-01-14 0.035054 58 23.82 10 - (25 Dec.)
2006 XY2 2007-02-18 0.182399 104 22.56 14 - (28 Dec.)
2006 XJ2 2007-01-02 0.115176 53 24.02 10 - past obs. - (23 Dec.)
2006 XY 2007-02-25 0.006953 54 23.99 19 - (31 Dec.)
2006 XX 2007-01-20 0.079887 69 23.45 16 - (27 Dec.)
2006 XW 2007-01-12 0.057782 61 23.72 14 - (25 Dec.)
2006 UF 2007-01-11 0.170877 115 22.35 66 - past obs. - (22 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 - past obs. - (22 Dec.)
2006 BJ55 2007-01-02 0.027616 49 24.21 14 - faint recov. poss. - past obs. - (8 Nov.)
2005 CN 2007-01-27 0.029212 86 22.97 3op - (26 Dec.)
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 |
|---|
| 1999 NW2 | 568 |
| 2000 SJ344 | 568 |
| 2005 CN | H55 |
| 2006 WX3 | 291 |
| 2006 XH2 | 143, 291 |
| 2006 XN4 | G96 |
| 2006 XO4 | 246, A50 |
| 2006 XP4 | 246, 291, A13, G96 |
| 2006 XV4 | G96 |
| 2006 XW | 291 |
| 2006 XW4 | 715, G96 |
| 2006 XX | 291, 715, H55 |
| 2006 XY | F84 |
| 2006 XY2 | 291 |
| 2006 YA | 113, 130, 160, 473, A24, A48, A56, A78, B03, G96, H45 |
| 2006 YB | 246, G96 |
| 2006 YD12 | 143, 246, 470, 473, 701, 703, 734, 854, A17, A50, H06, H55 |
| 2006 YH2 | 291 |
| 2006 YH14 | 113, 246, 703 |
| 2006 YJ2 | 170, 246, 703, A56 |
| 2006 YM | 204, 734, A48 |
| 2006 YP | 734 |
| 2006 YP44 | 673, G96, H06, H36, J95 |
|
| Code | Observatory | Objects Observed |
|---|
| 113 | Drebach Obs. | 2006 YA, 2006 YH14 |
| 130 | Lumezzane Obs. | 2006 YA |
| 143 | Gnosca Obs. | 2006 XH2, 2006 YD12 |
| 160 | Castelmartini Obs. | 2006 YA |
| 170 | Begues Obs. | 2006 YJ2 |
| 204 | Schiaparelli Obs. | 2006 YM |
| 246 | KLENOT | 2006 XO4, 2006 XP4, 2006 YB, 2006 YD12, 2006 YH14, 2006 YJ2 |
| 291 | Spacewatch 1.8m telescope | 2006 WX3, 2006 XH2, 2006 XP4, 2006 XW, 2006 XX, 2006 XY2, 2006 YH2 |
| 470 | Ceccano Obs. | 2006 YD12 |
| 473 | Remanzacco Obs. | 2006 YA, 2006 YD12 |
| 5682 | Mauna Kea -
David Tholen et al. | 1999 NW2, 2000 SJ344 |
| 6735 | Table Mtn. Obs. -
Jim Young | 2006 YP44 |
| 701 | Junk Bond Obs. | 2006 YD12 |
| 703 | Catalina Sky Survey | 2006 YD12, 2006 YH14, 2006 YJ2 |
| 715 | Jornada Obs. | 2006 XW4, 2006 XX |
| 734 | Farpoint Obs. | 2006 YD12, 2006 YM, 2006 YP |
| 854 | Sabino Canyon Obs. | 2006 YD12 |
| A13 | Naef Obs. | 2006 XP4 |
| A17 | Guidestar Obs. | 2006 YD12 |
| A24 | New Millennium Obs. | 2006 YA |
| A48 | Verona Obs. | 2006 YA, 2006 YM |
| A50 | Andrushivka Obs. | 2006 XO4, 2006 YD12 |
| A56 | Parma Obs. | 2006 YA, 2006 YJ2 |
| A78 | Stia Obs. | 2006 YA |
| B03 | Alter Satzberg Obs. | 2006 YA |
| F84 | Hibiscus Obs. | 2006 XY |
| G96 | Mt. Lemmon Survey | 2006 XN4, 2006 XP4, 2006 XV4, 2006 XW4, 2006 YA, 2006 YB, 2006 YP44 |
| H062 | RAS Obs. - Robt. Hutsebaut | 2006 YD12, 2006 YP44 |
| H36 | Sandlot Obs. | 2006 YP44 |
| H45 | Petit Jean Mtn. South Obs. | 2006 YA |
| H55 | Antares Obs. | 2005 CN, 2006 XX, 2006 YD12 |
| J95 | Great Shefford Obs. | 2006 YP44 |
|
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