Earth's Busy Neighborhood
ACC's Small Object Report for 1-7 January 2007
A semi-automated report compiled on 7 January 2007 at 2359 UTC
Fourteen small asteroids reported in the last 168 hours, during which none were newly discovered.
Currently 1,214 NEAs are listed with H>22.0 by JPL and/or the MPC (1,031 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 ]
- Jan. 7: Sunday Daily Orbit Update (DOU) MPEC 2007-A17 reports observations of three small asteroids. Sandlot and Marxuquera observatories in Kansas and Spain observed risk-listed 2006 XP4. Pla D'Arguines Observatory in Spain added about three days to what had been a six-day observing arc for 2006 YP44. And University Hills and Petit Jean Mountain South observatories in southern California and Arkansas as well as Marxuquera tracked 2006 UQ17.
- Jan. 6: Saturday's DOU MPEC 2007-A16 reports observations of seven small asteroids, six of them from Whipple Observatory in Arizona on December 16th UT. This work coded to Tim Spahr doubled the observing arc to about 18 days for 2006 WH130, which is now out of view for most NEO observers but not for larger telescopes. The others were observed within their now-current arcs, including 2006 XH2, 2006 XJ2, and 2006 XA3, which are out of view for most NEO observers, plus 2006 XY and 2006 XY2. The seventh small asteroid in today's DOU is 2006 YA, observed from Great Shefford Observatory in England last night.
- Jan. 5: DOU MPEC 2007-A14 on Friday reports observations of one small asteroid, 2006 UQ17 from Balzaretto and University Hills observatories in Italy and southern California.
- Jan. 4: Thursday DOU MPEC 2007-A05 reports observations of two small asteroids. The SZTE Asteroid Program in Hungary added about seven days to what had been 2006 YA's twelve-day observing arc, and Table Mountain Observatory in southern California added about four days to 2006 YP44's two-day arc.
Following observation from University Hills Observatory in southern California reported in yesterday's DOU MPEC 2007-A04, marginal object 2006 UQ17 has slipped over the line to become classified as small per JPL's new calculation of H=22.01. It was discovered back on October 19th by the Mt. Lemmon Survey in Arizona, was briefly risk listed, and has been under continuous observation ever since. Two days ago it was at its closest to Earth this time around, passing at 11.3 lunar distances.
- Jan. 3: On Wednesday there are no reports of observations of small asteroids. One almost-small asteroid that is calculated now to be in view but hasn't been picked up yet is 2006 AM4, which is inbound for pass at 5.2 lunar distances on February 1st, exactly a year after it was last reported in a 24-day observation arc. Astrometry and photometry are requested to help prepare for radar observation from Goldstone (see schedule).
- Jan. 2: Tuesday's DOU MPEC 2007-A02 reports observations of four small asteroids. 2006 WC30 and 2006 WZ184, both risk listed and out of view to most NEO observers, were observed by David Tholen's team on Hawaii's Mauna Kea on December 25th, adding 24 days to 2006 WC30's six-day observation arc. And Great Shefford Observatory in England tracked risk-listed 2006 XP4 and added about eight days to 2006 YP's former nine-day arc.
- Jan. 1: On Monday, with the Moon almost full, observations of two small asteroids are reported in the year's first MPEC, 2007-A01. Hibiscus Observatory in Tahiti observed risk-listed 2006 XP4 and Jim Young at Table Mountain Observatory in southern California added about three days to 2006 YH14's one-day observation arc.
- See news from the week of 25-31 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 WZ184 (K06WI4Z) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 21 meters per JPL H=26.05, MPC H=26.3
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 lunar distances (LD) on 26 Nov. 2006 at 2156 UT.
Lowell Observatory reports 2006 WZ184 has an MOID of 0.02095 AU (8.15 LD) with Mars.
Observations are reported from the following observatories in MPEC 2007-A02:
Mauna Kea [568{2}] coded to David Tholen et al.
2006-12-25 1050-1056, 2 pos. in MPEC 2007-A02, follow-up
See also information from the week ending 24 Dec. 2006.
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 0.014469 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 2007-A16:
Whipple Obs. [696{7}] coded to Tim Spahr
2006-12-16 0817-0831, 2 pos. in MPEC 2007-A16, follow-up
See also information from the week ending 24 Dec. 2006.
2006 WC30 (K06W30C) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 47 meters per JPL H=24.27, MPC H=24.2
This object has been listed as an impact risk since 26 Nov. 2006.
JPL classifies 2006 WC30 as an Apollo and calculates an Earth MOID of 0.001513 AU (0.59 LD),
and reports this object passed Earth at 6.2 LD on 28 Nov. 2006 at 0305 UT.
Observations are reported from the following observatories in MPEC 2007-A02:
Mauna Kea [568{2}] coded to David Tholen et al.
2006-12-25 1424-1424, 1 pos. in MPEC 2007-A02, follow-up
See also information from the week ending 3 Dec. 2006.
2006 XH2 (K06X02H) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 48 meters per JPL H=24.25, MPC H=24.4
JPL classifies 2006 XH2 as an Apollo and calculates an Earth MOID of 0.013315 AU (5.18 LD),
and reports this object passed Earth at 8.0 LD on 6 Dec. 2006 at 1856 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 MPEC 2007-A16:
Whipple Obs. [696{7}] coded to Tim Spahr
2006-12-16 0707-0719, 2 pos. in MPEC 2007-A16, follow-up
See also information from the week ending 31 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 0.115297 AU (44.86 LD).
Observations are reported from the following observatories in MPEC 2007-A16:
Whipple Obs. [696{7}] coded to Tim Spahr
2006-12-16 0723-0739, 2 pos. in MPEC 2007-A16, 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 2007-A16:
Whipple Obs. [696{7}] coded to Tim Spahr
2006-12-16 0322-0323, 2 pos. in MPEC 2007-A16, follow-up
See also information from the week ending 31 Dec. 2006.
2006 XP4 (K06X04P) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 56 meters per JPL H=23.89, 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 0.004108 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 0.02043 AU (7.95 LD) with Venus.
Observations are reported from the following observatories in MPECs 2007-A01, 2007-A02,
and 2007-A17:
Hibiscus Obs. [F84]
2006-12-31 1136-1223, 2 pos. in MPEC 2007-A01, follow-up
Great Shefford Obs. [J95]
2007-01-01 2359-0029, 3 pos. in MPEC 2007-A02, follow-up
Sandlot Obs. [H36]
2007-01-06 0649-0824, 5 pos. in MPEC 2007-A17, follow-up
Marxuquera Obs. [952]
2007-01-06 2249-2333, 4 pos. in MPEC 2007-A17, follow-up
See also information from the week ending 31 Dec. 2006.
2006 WH130 (K06WD0H) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 60 meters per JPL H=23.75, MPC H=23.8
JPL classifies 2006 WH130 as an Amor and calculates an Earth MOID of 0.090160 AU (35.08 LD),
and reports this object passed Earth at 36.4 LD on 1 Dec. 2006.
Lowell Observatory reports 2006 WH130 has an MOID of 0.02217 AU (8.63 LD) with Mars.
Observations are reported from the following observatories in MPEC 2007-A16:
Whipple Obs. [696{7}] coded to Tim Spahr
2006-12-16 0328-0339, 2 pos. in MPEC 2007-A16, follow-up
See also information from the week ending 10 Dec. 2006.
2006 YP44 (K06Y44P) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 62 meters per JPL H=23.67, MPC H=23.5
This object was listed from 29 until 31 Dec. 2006 as an impact risk.
JPL classifies 2006 YP44 as an Apollo and calculates an Earth MOID of 0.001433 AU (0.56 LD),
and reports this object passed Earth at 14.2 LD on 26 Dec. 2006.
Lowell Observatory reports 2006 YP44 has an MOID of 0.00316 AU (1.23 LD) with Mars.
Observations are reported from the following observatories in MPECs 2007-A05 and 2007-A17:
Table Mountain Obs. [673{5}] coded to Jim Young
2007-01-04 0608-0632, 4 pos. in MPEC 2007-A05, follow-up
Pla D'Arguines Obs. [941]
2007-01-07 0231-0240, 5 pos. in MPEC 2007-A17, follow-up
See also information from the week ending 31 Dec. 2006.
2006 YP (K06Y00P) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 64 meters per JPL H=23.62, MPC H=23.6
JPL classifies 2006 YP as an Apollo and calculates an Earth MOID of 0.025836 AU (10.05 LD),
and reports this object passed Earth at 22.6 LD on 30 Dec. 2006.
Observations are reported from the following observatories in MPEC 2007-A02:
Great Shefford Obs. [J95]
2007-01-02 0343-0404, 2 pos. in MPEC 2007-A02, follow-up
See also information from the week ending 31 Dec. 2006.
2006 YH14 (K06Y14H) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 78 meters per JPL H=23.20, MPC H=23.2
JPL classifies 2006 YH14 as an Amor and calculates an Earth MOID of 0.090058 AU (35.04 LD),
and reports this object will pass Earth at 38.2 LD on 13 Jan. 2007.
Observations are reported from the following observatories in MPEC 2007-A01:
Table Mountain Obs. [673{5}] coded to Jim Young
2006-12-31 0732-0753, 4 pos. in MPEC 2007-A01, follow-up
See also information from the week ending 31 Dec. 2006.
2006 YA (K06Y00A) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 82 meters per JPL H=23.07, MPC H=23.1
JPL classifies 2006 YA as an Apollo and calculates an Earth MOID of 0.048686 AU (18.94 LD),
and reports this object passed Earth at 19.7 LD on 29 Dec. 2006.
Observations are reported from the following observatories in MPECs 2007-A05 and 2007-A16:
SZTE Asteroid Program [461]
2007-01-03 2221-2236, 4 pos. in MPEC 2007-A05, follow-up
Great Shefford Obs. [J95]
2007-01-05 2225-2253, 3 pos. in MPEC 2007-A16, follow-up
See also information from the week ending 31 Dec. 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 0.182411 AU (70.98 LD).
Observations are reported from the following observatories in MPEC 2007-A16:
Whipple Obs. [696{7}] coded to Tim Spahr
2006-12-16 0808-0812, 2 pos. in MPEC 2007-A16, follow-up
See also information from the week ending 31 Dec. 2006.
2006 UQ17 (K06U17Q) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 134 meters per JPL H=22.02, MPC H=22.1
This object was listed from 21 until 22 Oct. 2006 as an impact risk.
JPL classifies 2006 UQ17 as an Apollo and calculates an Earth MOID of 0.022315 AU (8.68 LD),
and reports this object passed Earth at 11.3 LD on 2 Jan. 2007.
Lowell Observatory reports 2006 UQ17 has an MOID of 0.00882 AU (3.43 LD) with Mars.
2007 observations are reported from the following observatories in MPECs 2007-A04, 2007-A14,
and 2007-A17:
University Hills Obs. [G72]
2007-01-02 0723-0748, 6 pos. in MPEC 2007-A04, follow-up
2007-01-04 0515-0535, 6 pos. in MPEC 2007-A14, follow-up
2007-01-06 0516-0529, 6 pos. in MPEC 2007-A17, follow-up
Balzaretto Obs. [A81]
2007-01-03 2204-2220, 4 pos. in MPEC 2007-A14, follow-up
Petit Jean Mountain South Obs. [H45]
2007-01-06 0813-0821, 7 pos. in MPEC 2007-A17, follow-up
Marxuquera Obs. [952]
2007-01-07 0039-0047, 4 pos. in MPEC 2007-A17, follow-up
--------
2006 observations were reported from the following observatories in MPECs 2006-U39, 2006-U43,
2006-U44, 2006-U57, 2006-U60, 2006-U64, 2006-U75, 2006-V11, 2006-V13, 2006-V35, 2006-V36,
2006-W16, 2006-W20, 2006-W43, 2006-W94, 2006-X13, 2006-X27, 2006-X29, 2006-X30, 2006-X39,
2006-X52, 2006-X70, 2006-Y02, 2006-Y19, 2006-Y20, 2006-Y24, 2006-Y30, 2006-Y42, 2006-Y47,
2006-Y51, 2006-Y55, 2006-Y68, 2006-Y73, and 2006-Y74:
Spacewatch 0.9m telescope [691]
2006-09-28 0732-0822, 3 pos. in MPEC 2006-V13, prediscovery
2006-10-02 0619-0709, 3 pos. in MPEC 2006-V13, prediscovery
NEAT's Mt. Palomar telescope [644]
2006-10-12 0652-0757, 3 pos. in MPEC 2006-V13, prediscovery
2006-10-19 0650-0749, 3 pos. in MPEC 2006-U39, discovery (*)
2006-10-21 0523-0621, 3 pos. in MPEC 2006-U43, follow-up
2006-11-10 0414-0513, 3 pos. in MPEC 2006-V36, follow-up
2006-12-04 0333-0432, 3 pos. in MPEC 2006-X70, follow-up
2006-12-12 0209-0240, 2 pos. in MPEC 2006-Y02, follow-up
2006-12-12 0432-0432, 1 pos. in MPEC 2006-Y02, follow-up
Catalina Sky Survey (CSS) [703]
2006-10-16 0539-0614, 3 pos. in MPEC 2006-U60, prediscovery
2006-10-22 0642-0710, 4 pos. in MPEC 2006-U44, follow-up
2006-10-22 0902-0936, 4 pos. in MPEC 2006-U44, follow-up
2006-12-11 0516-0545, 3 pos. in MPEC 2006-X39, follow-up
Sabino Canyon Obs. [854]
2006-10-21 0527-0549, 3 pos. in MPEC 2006-U39, confirmation
Mt. Lemmon Survey (MLS) [G96]
2006-10-21 0538-0559, 4 pos. in MPEC 2006-U39, confirmation
2006-12-15 0409-0443, 4 pos. in MPEC 2006-Y02, follow-up
Desert Moon Obs. [448]
2006-10-21 0637-0740, 3 pos. in MPEC 2006-U43, follow-up
2006-11-01 0352-0422, 3 pos. in MPEC 2006-V11, follow-up
2006-12-03 0350-0407, 3 pos. in MPEC 2006-X13, follow-up
McDonald Obs. [711]
2006-10-21 0725-0754, 3 pos. in MPEC 2006-U39, confirmation
2006-10-22 0547-0618, 3 pos. in MPEC 2006-U44, follow-up
Mt. John Obs. [474]
2006-10-21 1117-1127, 2 pos. in MPEC 2006-U43, follow-up
Spacewatch 1.8m telescope [291]
2006-10-22 0358-0416, 3 pos. in MPEC 2006-U43, follow-up
2006-12-09 0239-0304, 3 pos. in MPEC 2006-X27, follow-up
2006-12-10 0322-0334, 3 pos. in MPEC 2006-X29, follow-up
Sandlot Obs. [H36]
2006-10-22 0801-0843, 2 pos. in MPEC 2006-U44, follow-up
Wildberg Obs. [198]
2006-10-24 2141-2213, 5 pos. in MPEC 2006-U57, follow-up
KLENOT [246]
2006-10-25 2143-2157, 5 pos. in MPEC 2006-U60, follow-up
2006-10-26 2130-2202, 8 pos. in MPECs 2006-U64 -U75, follow-up
2006-11-16 2147-2154, 6 pos. in MPEC 2006-W16, follow-up
2006-12-27 2105-2109, 6 pos. in MPEC 2006-Y55, follow-up
Farpoint Obs. [734]
2006-11-09 0244-0257, 4 pos. in MPEC 2006-V35, follow-up
Powell Obs. [649]
2006-11-09 0254-0304, 4 pos. in MPEC 2006-V35, follow-up
Table Mountain Obs. [673{5}] coded to Jim Young
2006-11-09 0422-0448, 4 pos. in MPEC 2006-V35, follow-up
LINEAR [704]
2006-11-10 0431-0540, 5 pos. in MPEC 2006-V36, follow-up
2006-11-17 0420-0512, 3 pos. in MPEC 2006-W20, follow-up
2006-11-20 0311-0422, 4 pos. in MPEC 2006-W43, follow-up
2006-12-11 0301-0418, 5 pos. in MPEC 2006-X39, follow-up
2006-12-12 0123-0237, 5 pos. in MPEC 2006-X52, follow-up
2006-12-14 0314-0353, 3 pos. in MPEC 2006-X70, follow-up
Petit Jean Mountain South Obs. [H45]
2006-11-17 0618-0628, 7 pos. in MPEC 2006-W20, follow-up
2006-12-23 0338-0345, 7 pos. in MPEC 2006-Y42, follow-up
Red Barn Obs. [H68]
2006-11-26 0309-0421, 4 pos. in MPEC 2006-W94, follow-up
2006-12-18 0126-0207, 5 pos. in MPEC 2006-Y19, follow-up
Stia Obs. [A78]
2006-11-26 1846-1929, 4 pos. in MPEC 2006-X13, follow-up
Eschenberg Obs. [151]
2006-11-26 1954-2000, 3 pos. in MPEC 2006-W94, follow-up
2006-12-10 1819-1825, 7 pos. in MPEC 2006-X30, follow-up
2006-12-20 1807-1811, 7 pos. in MPEC 2006-Y30, follow-up
2006-12-27 1855-1859, 2 pos. in MPEC 2006-Y55, follow-up
LONEOS [699]
2006-12-08 0332-0451, 4 pos. in MPEC 2006-X70, follow-up
2006-12-25 0209-0322, 3 pos. in MPEC 2006-Y47, follow-up
Lumezzane Obs. [130]
2006-12-10 1853-1906, 4 pos. in MPEC 2006-Y02, follow-up
Drebach Obs. [113]
2006-12-12 1741-1742, 2 pos. in MPEC 2006-X52, follow-up
University Hills Obs. [G72]
2006-12-18 0519-0526, 5 pos. in MPEC 2006-Y20, follow-up
2006-12-19 0231-0340, 6 pos. in MPEC 2006-Y24, follow-up
2006-12-20 0306-0414, 6 pos. in MPEC 2006-Y30, follow-up
2006-12-29 0351-0418, 6 pos. in MPEC 2006-Y73, follow-up
2006-12-30 0438-0504, 6 pos. in MPEC 2006-Y74, follow-up
San Benedetto Po Obs. [434]
2006-12-20 2034-2039, 3 pos. in MPEC 2006-Y47, follow-up
Peschiera del Garda Obs. [A53]
2006-12-20 2046-2103, 4 pos. in MPEC 2006-Y42, follow-up
2006-12-21 2009-2036, 5 pos. in MPEC 2006-Y42, follow-up
2006-12-23 1811-1833, 5 pos. in MPEC 2006-Y51, follow-up
2006-12-25 1853-1905, 4 pos. in MPEC 2006-Y51, follow-up
Brainerd Observatory [726]
2006-12-24 0111-0145, 6 pos. in MPEC 2006-Y51, follow-up
2006-12-27 0042-0107, 6 pos. in MPEC 2006-Y55, follow-up
Begues Obs. [170]
2006-12-27 2138-2144, 3 pos. in MPEC 2006-Y68, follow-up
Hamamatsu-Yuto Obs. [379]
2006-12-29 1152-1233, 7 pos. in MPEC 2006-Y73, follow-up
48+120 Hours [ Objects Listings (size order) | Object Index (alpha/xref) | top ]
Observations of 14 small objects were reported during the last 168 hours:
2006 UQ17, 2006 WC30, 2006 WH130, 2006 WZ184, 2006 XA3, 2006 XH2, 2006 XJ2, 2006 XP4,
2006 XY, 2006 XY2, 2006 YA, 2006 YH14, 2006 YP & 2006 YP44
in MPECs:
2007-A01 time-stamped 2007 Jan. 1, 07:08 UT - Daily Orbit Update
2007-A02 time-stamped 2007 Jan. 2, 07:10 UT - Daily Orbit Update
2007-A04 time-stamped 2007 Jan. 3, 07:10 UT - Daily Orbit Update
2007-A05 time-stamped 2007 Jan. 4, 07:11 UT - Daily Orbit Update
2007-A14 time-stamped 2007 Jan. 5, 07:11 UT - Daily Orbit Update
2007-A16 time-stamped 2007 Jan. 6, 07:10 UT - Daily Orbit Update
2007-A17 time-stamped 2007 Jan. 7, 07:09 UT - Daily Orbit Update
Date & times for other sources that were parsed to compile this page:
JPL Close Approaches, downloaded at 2007 Jan. 7, 1552 UTC
JPL NEO Orbital Elements, downloaded at 2007 Jan. 7, 1913 UTC
Lowell Observatory Orbit intersections, time-stamped 2007 Jan 04 1929:25 UTC
MPC NEA.DAT from MPC mirror, downloaded at 2007 Jan. 7, 1557 UTC
Risk monitoring sites, as of A/CC's check at 2007 Jan. 7, 1718 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 21 small objects as being currently in view,
including 13 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 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 - past obs. - (27 Dec.)
2006 XW 2007-01-12 0.057782 61 23.72 14 - past obs. - (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 - past obs. - (25 Dec.)
2006 YP 2007-01-15 0.025836 64 23.62 9 - (2 Jan.)
2006 YB 2007-01-16 0.053988 52 24.05 11 - past obs. - (27 Dec.)
2006 XX 2007-01-20 0.079887 69 23.45 16 - past obs. - (27 Dec.)
2005 CN 2007-01-27 0.029212 86 22.97 3op - past obs. - (26 Dec.)
2006 XO4 2007-01-27 0.027635 72 23.37 13 - past obs. - (27 Dec.)
2006 YA 2007-01-29 0.048686 82 23.07 19 - (6 Jan.)
2006 YP44 2007-02-02 0.001433 62 23.67 9 - was risk listed - (7 Jan.)
2006 AM4 2007-02-03 0.011026 140 21.92 24 - was risk listed - radar target - past obs. - (3 Jan.)
2003 WP25 2007-02-07 0.023419 45 24.38 3op - (9 Dec.)
2006 XP4 2007-02-14 0.004108 56 23.89 23 - risk listed - (7 Jan.)
2006 XY2 2007-02-18 0.182411 104 22.56 14 - (6 Jan.)
2006 YJ2 2007-02-19 0.092155 125 22.16 9 - past obs. - (31 Dec.)
2006 XY 2007-02-25 0.006953 54 23.99 19 - (6 Jan.)
2006 YH14 2007-03-15 0.090058 78 23.20 4 - (1 Jan.)
2006 UQ17 2007-03-31 0.022315 134 22.02 101 - was risk listed - (7 Jan.)
2006 YD12 2007-04-18 0.044382 102 22.61 7 - past obs. - (30 Dec.)
Coming into view soon:
2004 BK11 2007-03-20 0.279416 106 22.52 29 - >11 Jan., faint recov. poss. - (3 Dec.)
Viewing by designation order - see also Viewing by date order
Object View until MOID AU Dia H Arc Notes (calc date)
---------- ---------- -------- --- ----- --- - -----------------------
2006 YP44 2007-02-02 0.001433 62 23.67 9 - was risk listed - (7 Jan.)
2006 YH14 2007-03-15 0.090058 78 23.20 4 - (1 Jan.)
2006 YD12 2007-04-18 0.044382 102 22.61 7 - past obs. - (30 Dec.)
2006 YJ2 2007-02-19 0.092155 125 22.16 9 - past obs. - (31 Dec.)
2006 YP 2007-01-15 0.025836 64 23.62 9 - (2 Jan.)
2006 YM 2007-01-11 0.023524 44 24.41 8 - past obs. - (27 Dec.)
2006 YB 2007-01-16 0.053988 52 24.05 11 - past obs. - (27 Dec.)
2006 YA 2007-01-29 0.048686 82 23.07 19 - (6 Jan.)
2006 XP4 2007-02-14 0.004108 56 23.89 23 - risk listed - (7 Jan.)
2006 XO4 2007-01-27 0.027635 72 23.37 13 - past obs. - (27 Dec.)
2006 XN4 2007-01-14 0.035054 58 23.82 10 - past obs. - (25 Dec.)
2006 XY2 2007-02-18 0.182411 104 22.56 14 - (6 Jan.)
2006 XY 2007-02-25 0.006953 54 23.99 19 - (6 Jan.)
2006 XX 2007-01-20 0.079887 69 23.45 16 - past obs. - (27 Dec.)
2006 XW 2007-01-12 0.057782 61 23.72 14 - past obs. - (25 Dec.)
2006 UQ17 2007-03-31 0.022315 134 22.02 101 - was risk listed - (7 Jan.)
2006 UF 2007-01-11 0.170877 115 22.35 66 - past obs. - (22 Dec.)
2006 SV5 2007-01-14 0.035879 80 23.14 96 - past obs. - (22 Dec.)
2006 AM4 2007-02-03 0.011026 140 21.92 24 - was risk listed - radar target - past obs. - (3 Jan.)
2005 CN 2007-01-27 0.029212 86 22.97 3op - past obs. - (26 Dec.)
2004 BK11 2007-03-20 0.279416 106 22.52 29 - >11 Jan., faint recov. poss. - (3 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 ]
|
|
| Code | Observatory | Objects Observed |
|---|
| 461 | SZTE Asteroid Program | 2006 YA |
| 5682 | Mauna Kea -
David Tholen et al. | 2006 WC30, 2006 WZ184 |
| 6735 | Table Mtn. Obs. - Jim Young | 2006 YH14, 2006 YP44 |
| 6967 | Whipple Obs. - Tim Spahr | 2006 WH130, 2006 XA3, 2006 XH2, 2006 XJ2, 2006 XY, 2006 XY2 |
| 941 | Pla D'Arguines Obs. | 2006 YP44 |
| 952 | Marxuquera Obs. | 2006 UQ17, 2006 XP4 |
| A81 | Balzaretto Obs. | 2006 UQ17 |
| F84 | Hibiscus Obs. | 2006 XP4 |
| G72 | University Hills Obs. | 2006 UQ17 |
| H36 | Sandlot Obs. | 2006 XP4 |
| H45 | Petit Jean Mtn. South Obs. | 2006 UQ17 |
| J95 | Great Shefford Obs. | 2006 XP4, 2006 YA, 2006 YP |
|
Cross-index for 2006 UQ17 observations in 2006
| Object | Observed by MPC code |
|---|
2006 UQ17
See
2007 index
above
| 113, 130,151, 170, 198, 246, 291, 379, 434, 448, 474, 644, 649, 673, 691, 699, 703, 704, 711, 726, 734, 854, A53, A78, G72, G96, H36, H45, H68 |
|
|
[ object listings |
index |
48 Hours |
viewing |
top ]
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