Earth's Busy Neighborhood
ACC's Small Object Report for 22-28 January 2007
A semi-automated report compiled on 29 January 2007 at 0006 UTC
Fourteen small asteroids reported in the last 168 hours, during which seven were newly discovered.*
*This week's reporting includes three additional asteroids just outside the "small" definition.
Currently 1,226 NEAs are listed with H>22.0 by JPL and/or the MPC (1,043 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. 28 #2: Discoveries of three small asteroids have been announced. LINEAR in New Mexico discovered 2007 BY48 two mornings ago and the Mt. Lemmon Survey (MLS) in Arizona found 2007 BZ48 and 2007 BA49 yesterday morning. Schiaperelli Observatory in Italy helped confirm all three, the MLS confirmed its own discoveries, and Remanzacco Observatory in Italy and Farpoint and Sandlot observatories in Kansas were in on confirming the first and third of these. Confirmation of 2007 BZ48 was also helped by Great Shefford Observatory in England and of 2007 BY48 by Consell Observatory in Spain and by Sabino and Junk Bond observatories as well as by the Catalina Sky Survey, all in Arizona. The closest approach of these three will be by 2007 BZ48 at 4.5 lunar distances on February 7th.
- Jan. 28 #1: Observations of four small asteroids are reported in Sunday's Daily Orbit Update (DOU) MPEC 2007-B61. The Mt. Lemmon Survey (MLS) in Arizona provided the first follow-up for 2007 BD8 and added about four days to what had been 2007 BJ's five-day observing arc. And Spacewatch in Arizona used its 1.8-meter telescope to add about twelve days to 2007 AA2's seven-day arc and to track 2007 AS2.
Looking at not-quite small asteroids, the MLS observed 2006 AM4 and 2006 UQ17 was reported from Italy from Peschiera del Garda and New Millenium observatories from December 26th and this morning.
- Jan. 27: DOU MPEC 2007-B60 on Saturday reports observations of two small asteroids. Farpoint Observatory in Kansas provided the first follow-up for 2007 BS2, adding about four days to this object's five-day discovery arc. And Farpoint along with Sandlot Observatory, also in Kansas, doubled 2007 BC8's observing arc to about four days.
Just outside "small" classification, radar target 2006 AM4 was reported from Farpoint as well as Consell and New Millennium observatories in Spain and Itay, and 2006 UQ17 was observed by New Millennium.
- Jan. 26: Friday DOU MPEC 2007-B48 reports observations of two small asteroids. Great Shefford Observatory in England provided the first follow-up for 2007 BU7. And 2007 BC8 is reported from within its discovery arc from LINEAR in New Mexico and just beyond that arc from the Catalina Sky Survey in Arizona.
Also reported in the DOU are almost-small asteroids 2006 AM4 from LINEAR and 2006 UQ17 from Petit Jean Mountain South and Greiner Research observatories in Arkansas and Wisconsin.
- Jan. 25 #2: Thursday continues with discovery announcements for two more small asteroids. LINEAR, which is located in New Mexico and run from Massachusetts, discovered 2007 BC8 two mornings ago and the Mt. Lemmon Survey in Arizona discovered 2007 BD8 yesterday morning. And both discoveries were confirmed this morning by Farpoint Observatory in Kansas.
Today's DOU MPEC 2007-B43 carries astrometry for small asteroid 2007 AS2 and smallish asteroids 2006 AM4 and 2006 UQ17. LINEAR observed the first two and Smolyan Observatory in Bulgaria reported 2007 UQ17 from January 16th.
- Jan. 25 #1: Early on Thursday the discovery of 2007 BU7 has been announced, found Wednesday morning by LONEOS in Arizona and confirmed in the evening by Great Shefford Observatory in England. JPL reports that this object passed Earth at 4.2 lunar distances last Friday.
- Jan. 24: On Wednesday, DOU MPEC 2007-B35 reports observations of four small asteroids. Spacewatch in Arizona used its 1.8-meter telescope to watch 2006 XP4 this morning and today the last impact solution was removed for this object. Antares Observatory in Illinois added about thirteen days to 2006 YP44's nine-day observing arc and also reported 2006 YJ2. And Petit Jean Mountain South Observatory in Arkansas tracked 2007 AS2.
Among almost-small asteroids, 2006 UQ17 was followed from Petit Jean and radar target 2006 AM4 from LONEOS in Arizona.
- Jan. 23: Tuesday's DOU MPEC 2007-B33 reports observations of three small asteroids. Great Shefford Observatory in England provided the first follow-up for 2007 BJ, adding about three days to its one-day discovery arc. Great Shefford along with Linz Observatory in Austria added six days to 2007 AA9's three-day observing arc. And Linz added thirteen days to what had been an eighteen-day arc for 2006 YJ2.
There is also news today of three borderline "almost small" objects. Fabrizio Bernardi of David Tholen's team on Mauna Kea recovered 2006 BE55 on November 29th and December 25th using the University of Hawaii 2.2m telescope. And today's DOU reports observations of 2006 UQ17 from Galaxy Blues Observatory in Ontario and of radar target 2006 AM4 from Badlands Observatory in South Dakota.
- Jan. 22: The week start's off Monday with the announcement of the discovery of the relatively distant small asteroid 2007 BS2 five days ago by LONEOS in Arizona. Confirmation came from Farpoint Observatory in Kansas three mornings ago, Antares Observatory in Illinois the next morning, and Great Shefford Observatory in England last night. The MPC Status Page reported overnight that, due to computer problems, there will be no DOU MPEC today and so there are no other small-asteroid observations to report.
- See news from the week of 15-21 January and from previous weeks, and you also can look up individual small asteroids.
Object Listings -- smallest objects first [ Alpha Index | 48 Hours | top ]
2007 BZ48 (K07B48Z) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 22 meters per JPL H=25.95, MPC H=25.9
JPL classifies 2007 BZ48 as an Apollo and calculates an Earth MOID of 0.005332 AU (2.07 LD),
and reports this object will pass Earth at 4.5 lunar distances (LD) on 7 Feb. 2007 at about 1100 UT.
Observations are reported from the following observatories in MPEC 2007-B64:
Mt. Lemmon Survey (MLS) [G96]
2007-01-27 0329-0523, 7 pos. in MPEC 2007-B64, discovery (*)
2007-01-27 0719-0745, 4 pos. in MPEC 2007-B64, confirmation
2007-01-28 0423-0533, 7 pos. in MPEC 2007-B64, confirmation
Great Shefford Obs. [J95]
2007-01-27 2206-2236, 3 pos. in MPEC 2007-B64, confirmation
Schiaparelli Obs. [204]
2007-01-27 2339-2355, 2 pos. in MPEC 2007-B64, confirmation
2007 BA49 (K07B49A) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 38 meters per JPL H=24.76, MPC H=24.7
JPL classifies 2007 BA49 as an Amor and calculates an Earth MOID of 0.058156 AU (22.63 LD),
and reports this object passed Earth at 25.4 LD on 14 Jan. 2007.
Observations are reported from the following observatories in MPEC 2007-B65:
Mt. Lemmon Survey (MLS) [G96]
2007-01-27 0628-0702, 4 pos. in MPEC 2007-B65, discovery (*)
2007-01-27 0855-0932, 4 pos. in MPEC 2007-B65, confirmation
2007-01-28 0641-0825, 7 pos. in MPEC 2007-B65, confirmation
Schiaparelli Obs. [204]
2007-01-27 2130-2140, 2 pos. in MPEC 2007-B65, confirmation
Remanzacco Obs. [473]
2007-01-28 0150-0153, 2 pos. in MPEC 2007-B65, confirmation
Sandlot Obs. [H36]
2007-01-28 0835-0915, 3 pos. in MPEC 2007-B65, confirmation
2007 AA2 (K07A02A) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 40 meters per JPL H=24.62, MPC H=24.6
This object was listed from 10 until 12 Jan. 2007 as an impact risk.
JPL classifies 2007 AA2 as an Apollo and calculates an Earth MOID of 0.011520 AU (4.48 LD),
and reports this object passed Earth at 10.7 LD on 6 Jan. 2007.
Observations are reported from the following observatories in MPEC 2007-B61:
Spacewatch 1.8m telescope [291]
2007-01-28 0527-0538, 3 pos. in MPEC 2007-B61, follow-up (H)
See also information from the week ending 21 Jan. 2007.
2007 BD8 (K07B08D) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 42 meters per JPL H=24.52, MPC H=24.7
JPL classifies 2007 BD8 as an Apollo and calculates an Earth MOID of 0.031041 AU (12.08 LD),
and reports this object will pass Earth at 14.6 LD on 15 Feb. 2007.
Observations are reported from the following observatories in MPECs 2007-B45 and 2007-B61:
Mt. Lemmon Survey (MLS) [G96]
2007-01-24 0717-0930, 8 pos. in MPEC 2007-B45, discovery (*)
2007-01-27 0601-0623, 3 pos. in MPEC 2007-B61, follow-up
2007-01-27 0802-0843, 4 pos. in MPEC 2007-B61, follow-up
Farpoint Obs. [734]
2007-01-25 0336-0414, 4 pos. in MPEC 2007-B45, confirmation
2007 BU7 (K07B07U) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 45 meters per JPL H=24.36, MPC H=24.1
JPL classifies 2007 BU7 as an Aten and calculates an Earth MOID of 0.009813 AU (3.82 LD),
and reports this object passed Earth at 4.2 LD on 19 Jan. 2007 at about 1820 UT.
Lowell Observatory reports 2007 BU7 has an MOID of 0.02255 AU (8.77 LD) with Venus.
Observations are reported from the following observatories in MPECs 2007-B41 and 2007-B48:
LONEOS [699]
2007-01-24 0522-0656, 7 pos. in MPEC 2007-B41, discovery (*)
Great Shefford Obs. [J95]
2007-01-24 1838-1842, 3 pos. in MPEC 2007-B41, confirmation
2007-01-25 1821-1834, 3 pos. in MPEC 2007-B48, follow-up
2006 XP4 (K06X04P) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 55 meters per JPL H=23.93, MPC H=23.9
This object was listed from 16 Dec. 2006 until 24 Jan. 2007 as an impact risk.
JPL classifies 2006 XP4 as an Aten and calculates an Earth MOID of 0.004110 AU (1.60 LD),
and reports this object passed Earth at 28.6 LD on 9 Jan. 2007.
Lowell Observatory reports 2006 XP4 has an MOID of 0.02036 AU (7.92 LD) with Venus.
Observations are reported from the following observatories in MPEC 2007-B35:
Spacewatch 1.8m telescope [291]
2007-01-24 0454-0506, 3 pos. in MPEC 2007-B35, follow-up (t)
See also information from the week ending 21 Jan. 2007.
2006 YP44 (K06Y44P) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 64 meters per JPL H=23.63, MPC H=23.6
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 MPEC 2007-B35:
Antares Obs. [H55]
2007-01-20 0521-0547, 3 pos. in MPEC 2007-B35, follow-up
See also information from the week ending 7 Jan. 2007.
2007 BS2 (K07B02S) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 73 meters per JPL H=23.34, MPC H=23.3
JPL classifies 2007 BS2 as an Amor and calculates an Earth MOID of 0.133622 AU (51.99 LD).
Observations are reported from the following observatories in MPECs 2007-B28 and 2007-B60:
Spacewatch 0.9m telescope [691]
2007-01-17 0822-0912, 3 pos. in MPEC 2007-B28, discovery (*)
Farpoint Obs. [734]
2007-01-19 0522-0535, 3 pos. in MPEC 2007-B28, confirmation
2007-01-26 0815-0834, 3 pos. in MPEC 2007-B60, follow-up
Antares Obs. [H55]
2007-01-20 0702-0731, 3 pos. in MPEC 2007-B28, confirmation
Great Shefford Obs. [J95]
2007-01-21 2204-2241, 3 pos. in MPEC 2007-B28, confirmation
2007 BJ (K07B00J) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 92 meters per JPL H=22.83, MPC H=22.8
JPL classifies 2007 BJ as an Apollo and calculates an Earth MOID of 0.082556 AU (32.12 LD),
and reports this object passed Earth at 32.7 LD on 16 Jan. 2007.
Observations are reported from the following observatories in MPECs 2007-B33 and 2007-B61:
Great Shefford Obs. [J95]
2007-01-22 2136-2154, 3 pos. in MPEC 2007-B33, follow-up
Spacewatch 1.8m telescope [291]
2007-01-28 0546-0557, 3 pos. in MPEC 2007-B61, follow-up (t)
See also information from the week ending 21 Jan. 2007.
2007 BY48 (K07B48Y) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 107 meters per JPL H=22.51, MPC H=22.6
JPL classifies 2007 BY48 as an Apollo and calculates an Earth MOID of 0.029385 AU (11.43 LD),
and reports this object passed Earth at 11.5 LD on 21 Jan. 2007.
Observations are reported from the following observatories in MPEC 2007-B63:
LINEAR [704]
2007-01-26 0522-0616, 4 pos. in MPEC 2007-B63, discovery (*)
Consell Obs. [176]
2007-01-26 2202-2204, 4 pos. in MPEC 2007-B63, confirmation
Remanzacco Obs. [473]
2007-01-26 2311-2324, 3 pos. in MPEC 2007-B63, confirmation
Farpoint Obs. [734]
2007-01-27 0202-0212, 5 pos. in MPEC 2007-B63, confirmation
Sandlot Obs. [H36]
2007-01-27 0327-0341, 3 pos. in MPEC 2007-B63, confirmation
2007-01-28 0704-0714, 5 pos. in MPEC 2007-B63, confirmation
Sabino Canyon Obs. [854]
2007-01-27 0513-0524, 3 pos. in MPEC 2007-B63, confirmation
Junk Bond Obs. [701]
2007-01-27 0600-0608, 2 pos. in MPEC 2007-B63, confirmation
Catalina Sky Survey (CSS) [703]
2007-01-27 0645-0646, 3 pos. in MPEC 2007-B63, confirmation
Schiaparelli Obs. [204]
2007-01-27 2304-2304, 1 pos. in MPEC 2007-B63, confirmation
2007 BC8 (K07B08C) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 120 meters per JPL H=22.25, MPC H=22.6
JPL classifies 2007 BC8 as an Amor and calculates an Earth MOID of 0.038940 AU (15.15 LD),
and reports this object will pass Earth at 33.5 LD on 8 Feb. 2007.
Lowell Observatory reports 2007 BC8 has an MOID of 0.03227 AU (12.56 LD) with Mars.
Observations are reported from the following observatories in MPECs 2007-B44, 2007-B48,
and 2007-B60:
LINEAR [704]
2007-01-23 0747-0857, 5 pos. in MPEC 2007-B44, discovery (*)
2007-01-25 0859-1033, 13 pos. in MPEC 2007-B48, follow-up
Farpoint Obs. [734]
2007-01-25 0756-0815, 5 pos. in MPEC 2007-B44, confirmation
2007-01-25 1039-1044, 4 pos. in MPEC 2007-B44, confirmation
2007-01-27 0617-0630, 3 pos. in MPEC 2007-B60, follow-up
Catalina Sky Survey (CSS) [703]
2007-01-25 1207-1219, 4 pos. in MPEC 2007-B48, follow-up
Sandlot Obs. [H36]
2007-01-27 0629-0644, 3 pos. in MPEC 2007-B60, follow-up
2006 YJ2 (K06Y02J) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 127 meters per JPL H=22.13, MPC H=22.1
JPL classifies 2006 YJ2 as an Amor and calculates an Earth MOID of 0.092313 AU (35.92 LD),
and reports this object passed Earth at 38.4 LD on 25 Dec. 2006.
Observations are reported from the following observatories in MPECs 2007-B33 and 2007-B35:
Antares Obs. [H55]
2007-01-20 0402-0413, 3 pos. in MPEC 2007-B35, follow-up
Linz Obs. [540]
2007-01-21 1936-1947, 2 pos. in MPEC 2007-B33, follow-up
See also information from the week ending 14 Jan. 2007.
2007 AS2 (K07A02S) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 128 meters per JPL H=22.11, MPC H=22.1
This object was listed from 11 until 14 Jan. 2007 as an impact risk.
JPL classifies 2007 AS2 as an Apollo and calculates an Earth MOID of 0.041712 AU (16.23 LD),
and reports this object passed Earth at 31.7 LD on 5 Jan. 2007.
Observations are reported from the following observatories in MPECs 2007-B35, 2007-B43,
and 2007-B61:
Petit Jean Mountain South Obs. [H45]
2007-01-23 0748-0757, 6 pos. in MPEC 2007-B35, follow-up
LINEAR [704]
2007-01-24 0536-0611, 3 pos. in MPEC 2007-B43, follow-up
Mt. Lemmon Survey (MLS) [G96]
2007-01-27 0329-0358, 4 pos. in MPEC 2007-B61, follow-up
See also information from the week ending 21 Jan. 2007.
2007 AA9 (K07A09A) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 131 meters per JPL H=22.06, MPC H=22.2
JPL classifies 2007 AA9 as an Aten and calculates an Earth MOID of 0.015157 AU (5.90 LD),
and reports this object passed Earth at 17.6 LD on 30 Dec. 2006.
Observations are reported from the following observatories in MPEC 2007-B33:
Linz Obs. [540]
2007-01-21 2013-2030, 3 pos. in MPEC 2007-B33, follow-up
Great Shefford Obs. [J95]
2007-01-21 2042-2126, 3 pos. in MPEC 2007-B33, follow-up
See also information from the week ending 21 Jan. 2007.
2006 UQ17 (K06U17Q) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 139 meters per JPL H=21.93, MPC H=22.0 -- not small
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.
Observations are reported from the following observatories in MPECs 2007-B33, 2007-B35,
2007-B43, 2007-B48, 2007-B60, and 2007-B61:
Peschiera del Garda Obs. [A53]
2006-12-26 1944-1953, 5 pos. in MPEC 2007-B61, follow-up
Smolyan Obs. [071]
2007-01-16 0352-0403, 3 pos. in MPEC 2007-B43, follow-up
Galaxy Blues Obs. [H89]
2007-01-21 0602-0602, 1 pos. in MPEC 2007-B33, follow-up
2007-01-21 0743-0854, 2 pos. in MPEC 2007-B33, follow-up
Petit Jean Mountain South Obs. [H45]
2007-01-23 0925-0931, 5 pos. in MPEC 2007-B35, follow-up
2007-01-25 0939-0947, 6 pos. in MPEC 2007-B48, follow-up
Greiner Research Obs. [H51]
2007-01-25 1057-1112, 8 pos. in MPEC 2007-B48, follow-up
New Millennium Obs. [A24]
2007-01-27 0106-0159, 4 pos. in MPEC 2007-B60, follow-up
2007-01-28 0153-0154, 2 pos. in MPEC 2007-B61, follow-up
See also information from the week ending 21 Jan. 2007.
2006 BE55 (K06B55E) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 139 meters per JPL H=21.93, MPC H=21.9 -- not small
JPL classifies 2006 BE55 as an Apollo and calculates an Earth MOID of 0.023651 AU (9.20 LD),
and reports this object passed Earth at 16.1 LD on 27 Feb. 2006.
Lowell Observatory reports 2006 BE55 has significant MOIDs with planets Venus (0.00396 AU =
1.54 LD) and Mars (0.04386 AU = 17.07 LD).
Observations are reported from the following observatories in MPEC 2007-B34:
Mauna Kea [568{2}] coded to David Tholen et al.
2006-11-29 0953-1004, 2 pos. in MPEC 2007-B34, follow-up
2006-12-25 1011-1025, 2 pos. in MPEC 2007-B34, follow-up
See also information from the week ending 5 March 2006.
2006 AM4 (K06A04M) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 140 meters per JPL H=21.92, MPC H=21.8 -- not small
This object was listed from 10 until 18 Jan. 2006 as an impact risk.
JPL classifies 2006 AM4 as an Aten and calculates an Earth MOID of 0.011026 AU (4.29 LD),
and reports this object will pass Earth at 5.2 LD on 1 Feb. 2007 at 0705 UT.
Lowell Observatory reports 2006 AM4 has significant MOIDs with planets Mercury (0.00948 AU =
3.69 LD) and Venus (0.01045 AU = 4.07 LD).
Observations are reported from the following observatories in MPECs 2007-B33, 2007-B35,
2007-B43, 2007-B48, 2007-B60, and 2007-B61:
Badlands Obs. [918]
2007-01-22 0529-0529, 1 pos. in MPEC 2007-B33, follow-up (F)
2007-01-22 0909-0909, 1 pos. in MPEC 2007-B33, follow-up (F)
2007-01-22 1259-1259, 1 pos. in MPEC 2007-B33, follow-up (F)
LONEOS [699]
2007-01-23 0913-0950, 2 pos. in MPEC 2007-B35, follow-up
2007-01-23 1104-1104, 1 pos. in MPEC 2007-B35, follow-up
LINEAR [704]
2007-01-24 0754-0922, 5 pos. in MPEC 2007-B43, follow-up
2007-01-25 0922-1034, 5 pos. in MPEC 2007-B48, follow-up
Farpoint Obs. [734]
2007-01-26 0723-0802, 5 pos. in MPEC 2007-B60, follow-up
Consell Obs. [176]
2007-01-27 0006-0011, 5 pos. in MPEC 2007-B60, follow-up
New Millennium Obs. [A24]
2007-01-27 0112-0206, 4 pos. in MPEC 2007-B60, follow-up
Mt. Lemmon Survey (MLS) [G96]
2007-01-27 0958-1205, 8 pos. in MPEC 2007-B61, follow-up
See also information from the week ending 21 Jan. 2007.
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 XP4, 2006 YJ2, 2006 YP44, 2007 AA2, 2007 AA9, 2007 AS2, 2007 BA49, 2007 BC8,
2007 BD8, 2007 BJ, 2007 BS2, 2007 BU7, 2007 BY48 & 2007 BZ48 as well as
three borderline-small objects: 2006 AM4, 2006 BE55 & 2006 UQ17
in MPECs:
2007-B28 time-stamped 2007 Jan. 22, 15:18 UT - 2007 BS2
2007-B33 time-stamped 2007 Jan. 23, 07:07 UT - Daily Orbit Update
2007-B34 time-stamped 2007 Jan. 23, 12:26 UT - 2006 BE55
2007-B35 time-stamped 2007 Jan. 24, 07:07 UT - Daily Orbit Update
2007-B41 time-stamped 2007 Jan. 25, 00:39 UT - 2007 BU7
2007-B43 time-stamped 2007 Jan. 25, 07:07 UT - Daily Orbit Update
2007-B44 time-stamped 2007 Jan. 25, 11:51 UT - 2007 BC8
2007-B45 time-stamped 2007 Jan. 25, 11:54 UT - 2007 BD8
2007-B48 time-stamped 2007 Jan. 26, 07:07 UT - Daily Orbit Update
2007-B60 time-stamped 2007 Jan. 27, 07:07 UT - Daily Orbit Update
2007-B61 time-stamped 2007 Jan. 28, 07:08 UT - Daily Orbit Update
2007-B63 time-stamped 2007 Jan. 28, 21:52 UT - 2007 BY48
2007-B64 time-stamped 2007 Jan. 28, 21:54 UT - 2007 BZ48
2007-B65 time-stamped 2007 Jan. 28, 21:58 UT - 2007 BA49
Date & times for other sources that were parsed to compile this page:
JPL Close Approaches, downloaded at 2007 Jan. 28, 2355 UTC
JPL NEO Orbital Elements, downloaded at 2007 Jan. 29, 0005 UTC
Lowell Observatory Orbit intersections, time-stamped 2007 Jan 26 2213:34 UTC
MPC NEA.DAT from MPC mirror, downloaded at 2007 Jan. 28, 1626 UTC
Risk monitoring sites, as of A/CC's check at 2007 Jan. 28, 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 23 small objects as being currently in view,
including 10 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 YA 2007-01-29 0.048686 82 23.07 19 - past obs. (6 Jan.)
2007 BD 2007-01-29 0.002571 24 25.72 4 - past obs. (21 Jan.)
2007 BJ 2007-02-02 0.082556 92 22.83 4 - (23 Jan.)
2006 YP44 2007-02-02 0.001433 64 23.63 22 - was risk listed (24 Jan.)
2006 AM4 2007-02-03 0.011026 140 21.92 2op - was risk listed, radar target (27 Jan.)
2007 AA2 2007-02-04 0.011520 40 24.62 7 - was risk listed (16 Jan.)
2003 WP25 2007-02-07 0.023419 45 24.38 3op - (9 Dec.)
2007 BU7 2007-02-07 0.009813 45 24.36 2 - (26 Jan.)
2006 XP4 2007-02-14 0.004110 55 23.93 41 - was risk listed (24 Jan.)
2007 AA9 2007-02-16 0.015157 131 22.06 9 - (23 Jan.)
2006 XY2 2007-02-18 0.182560 104 22.56 28 - past obs. (11 Jan.)
2007 BD8 2007-02-20 0.031041 42 24.52 1 - (25 Jan.)
2006 YJ2 2007-02-21 0.092313 127 22.13 31 - (24 Jan.)
2002 VX91 2007-02-23 0.001376 51 24.12 2op - (3 Dec.)
2006 XY 2007-02-25 0.006952 54 24.00 19 - past obs. (16 Jan.)
2007 AS2 2007-02-25 0.041712 128 22.11 15 - was risk listed (25 Jan.)
2006 YH14 2007-03-12 0.091097 75 23.26 31 - past obs. (14 Jan.)
2004 BK11 2007-03-20 0.279416 106 22.52 29 - faint recov. poss. (3 Dec.)
2007 BS2 2007-03-20 0.133622 73 23.34 9 - (27 Jan.)
2000 PN8 2007-03-26 0.079762 127 22.13 26 - bright recov. poss. (3 Dec.)
2006 UQ17 2007-04-01 0.022315 139 21.93 121 - was risk listed (27 Jan.)
2006 YD12 2007-04-18 0.044382 102 22.61 7 - past obs. (30 Dec.)
2007 BC8 2007-05-25 0.038940 120 22.25 4 - (27 Jan.)
Viewing by designation order - see also Viewing by date order
Object View until MOID AU Dia H Arc Notes (calc date)
---------- ---------- -------- --- ----- --- - -----------------------
2007 BD8 2007-02-20 0.031041 42 24.52 1 - (25 Jan.)
2007 BC8 2007-05-25 0.038940 120 22.25 4 - (27 Jan.)
2007 BU7 2007-02-07 0.009813 45 24.36 2 - (26 Jan.)
2007 BS2 2007-03-20 0.133622 73 23.34 9 - (27 Jan.)
2007 BJ 2007-02-02 0.082556 92 22.83 4 - (23 Jan.)
2007 BD 2007-01-29 0.002571 24 25.72 4 - past obs. (21 Jan.)
2007 AA9 2007-02-16 0.015157 131 22.06 9 - (23 Jan.)
2007 AS2 2007-02-25 0.041712 128 22.11 15 - was risk listed (25 Jan.)
2007 AA2 2007-02-04 0.011520 40 24.62 7 - was risk listed (16 Jan.)
2006 YP44 2007-02-02 0.001433 64 23.63 22 - was risk listed (24 Jan.)
2006 YH14 2007-03-12 0.091097 75 23.26 31 - past obs. (14 Jan.)
2006 YD12 2007-04-18 0.044382 102 22.61 7 - past obs. (30 Dec.)
2006 YJ2 2007-02-21 0.092313 127 22.13 31 - (24 Jan.)
2006 YA 2007-01-29 0.048686 82 23.07 19 - past obs. (6 Jan.)
2006 XP4 2007-02-14 0.004110 55 23.93 41 - was risk listed (24 Jan.)
2006 XY2 2007-02-18 0.182560 104 22.56 28 - past obs. (11 Jan.)
2006 XY 2007-02-25 0.006952 54 24.00 19 - past obs. (16 Jan.)
2006 UQ17 2007-04-01 0.022315 139 21.93 121 - was risk listed (27 Jan.)
2006 AM4 2007-02-03 0.011026 140 21.92 2op - was risk listed, radar target (27 Jan.)
2004 BK11 2007-03-20 0.279416 106 22.52 29 - faint recov. poss. (3 Dec.)
2003 WP25 2007-02-07 0.023419 45 24.38 3op - (9 Dec.)
2002 VX91 2007-02-23 0.001376 51 24.12 2op - (3 Dec.)
2000 PN8 2007-03-26 0.079762 127 22.13 26 - bright recov. poss. (3 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 |
|---|
| 2006 AM4 | 176, 699, 704, 734, 918, A24, G96 |
| 2006 BE55 | 568 |
| 2006 UQ17 | 071, A24, A53, H45, H51, H89 |
| 2006 XP4 | 291 |
| 2006 YJ2 | 540, H55 |
| 2006 YP44 | H55 |
| 2007 AA2 | 291 |
| 2007 AA9 | 540, J95 |
| 2007 AS2 | 704, G96, H45 |
| 2007 BA49 | 204, 473, G96, H36 |
| 2007 BC8 | 703, 704, 734, H36 |
| 2007 BD8 | 734, G96 |
| 2007 BJ | 291, J95 |
| 2007 BS2 | 691, 734, H55, J95 |
| 2007 BU7 | 699, J95 |
| 2007 BY48 | 176, 204, 473, 701, 703, 704, 734, 854, H36 |
| 2007 BZ48 | 204, G96, J95 |
|
| Code | Observatory | Objects Observed |
|---|
| 071 | Smolyan Obs. | 2006 UQ17 |
| 176 | Consell Obs. | 2006 AM4, 2007 BY48 |
| 204 | Schiaparelli Obs. | 2007 BA49, 2007 BY48, 2007 BZ48 |
| 291 | Spacewatch 1.8m telescope | 2006 XP4, 2007 AA2, 2007 BJ |
| 473 | Remanzacco Obs. | 2007 BA49, 2007 BY48 |
| 540 | Linz Obs. | 2006 YJ2, 2007 AA9 |
| 5682 | Mauna Kea - David Tholen et al. | 2006 BE55 |
| 691 | Spacewatch 0.9m telescope | 2007 BS2 |
| 699 | LONEOS | 2006 AM4, 2007 BU7 |
| 701 | Junk Bond Obs. | 2007 BY48 |
| 703 | Catalina Sky Survey | 2007 BC8, 2007 BY48 |
| 704 | LINEAR | 2006 AM4, 2007 AS2, 2007 BC8, 2007 BY48 |
| 734 | Farpoint Obs. | 2006 AM4, 2007 BC8, 2007 BD8, 2007 BS2, 2007 BY48 |
| 854 | Sabino Canyon Obs. | 2007 BY48 |
| 918 | Badlands Obs. | 2006 AM4 |
| A24 | New Millennium Obs. | 2006 AM4, 2006 UQ17 |
| A53 | Peschiera del Garda Obs. | 2006 UQ17 |
| G96 | Mt. Lemmon Survey | 2006 AM4, 2007 AS2, 2007 BA49, 2007 BD8, 2007 BZ48 |
| H36 | Sandlot Obs. | 2007 BA49, 2007 BC8, 2007 BY48 |
| H45 | Petit Jean Mountain South Obs. | 2006 UQ17, 2007 AS2 |
| H51 | Greiner Research Obs. | 2006 UQ17 |
| H55 | Antares Obs. | 2006 YJ2, 2006 YP44, 2007 BS2 |
| H89 | Galaxy Blues Obs. | 2006 UQ17 |
| J95 | Great Shefford Obs. | 2007 AA9, 2007 BJ, 2007 BS2, 2007 BU7, 2007 BZ48 |
|
[ object listings |
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