6-12 Feb. '06 - A/CC Small Object Report

ACC's Small Object Report for 6-12 February 2006

A semi-automated report compiled on 12 February 2006 at 2359 UTC

There are 18* small objects reported in the last 168 hours, during which 2 were newly discovered.

news

objects by size

object index

48 Hours

viewing

weekly

Editor's note: "Small" is defined by an asteroid having an absolute magnitude (brightness) calculated at greater than H=22.0, which equates very roughly to 135 meters in diameter. Larger H means lesser size and the astronomical community does not classify such objects as "potentially hazardous" no matter how close they may come to the Earth. 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, some asteroids too small to be labeled potentially hazardous could still cause severe local damage. These are sometimes called "Tunguska-class objects" (TCOs), after the 1908 event that was probably caused by a comet remnant 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 recently changed its main Risk page to qualify "Objects too small to result in heavy damage on the ground" as having "absolute magnitude > 25," which roughly corresponds to 35 meters wide. And JPL in October 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."
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 current successes.

Object Listings -- smallest objects first [ Alpha Index | 48 Hours | top ]

Size estimate: 15 meters per JPL H=26.72, MPC H=26.7 JPL classifies 2006 BR98 as an Apollo and calculates an Earth MOID of 0.018724 AU (7.29 LD), and reports this object passed Earth at 7.4 lunar distances (LD) on 30 Jan. 2006 at 2237 UT. Lowell Observatory reports 2006 BR98 has an MOID of 0.00541 AU (2.11 LD) with Mars. Observations are reported from the following observatories in MPEC 2006-C43: Cordell-Lorenz Obs. [850] 2006-02-01 0902-0910, 3 pos in MPEC 2006-C43, follow-up See also information from the week ending 5 Feb. 2006. 2006 BG99 (K06B99G) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]

Size estimate: 24 meters per JPL H=25.72, MPC H=25.7 JPL classifies 2006 BG99 as an Apollo and calculates an Earth MOID of 0.038132 AU (14.84 LD), and reports this object passed Earth at 17.9 LD on 8 Jan. 2006 Lowell Observatory reports 2006 BG99 has an MOID of 0.04627 AU (18.0 LD) with Mars. Observations are reported from the following observatories in MPEC 2006-C41: Spacewatch 1.8m telescope [291] 2006-02-06 0815-0828, 2 pos in MPEC 2006-C41, follow-up See also information from the week ending 5 Feb. 2006. 2006 BF55 (K06B55F) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]

Size estimate: 26 meters per JPL H=25.58, MPC H=25.7 JPL classifies 2006 BF55 as an Amor and calculates an Earth MOID of 0.046612 AU (18.14 LD), and reports this object passed Earth at 20.0 LD on 15 Jan. 2006 Observations are reported from the following observatories in MPEC 2006-C41: Spacewatch 1.8m telescope [291] 2006-02-06 1201-1213, 3 pos in MPEC 2006-C41, follow-up (H) See also information from the week ending 5 Feb. 2006. 2006 CL (K06C00L) [ 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 CL as an Apollo and calculates an Earth MOID of 0.019833 AU (7.72 LD), and reports this object passed Earth at 8.0 LD on 27 Jan. 2006 at 0631 UT. Observations are reported from the following observatories in MPEC 2006-C43: Spacewatch 1.8m telescope [291] 2006-02-07 0937-0940, 2 pos in MPEC 2006-C43, follow-up (m) See also information from the week ending 5 Feb. 2006. 2006 BZ147 (K06BE7Z) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]

Size estimate: 28 meters per JPL H=25.42, MPC H=25.4 This object has been listed as an impact risk since 3 Feb. 2006. JPL classifies 2006 BZ147 as an Apollo and calculates an Earth MOID of 0.002250 AU (0.88 LD), and reports this object will pass Earth at 16.0 LD on 4 March 2006 Observations are reported from the following observatories in MPECs 2006-C41 and 2006-C43: Spacewatch 0.9m telescope [691] 2006-02-07 0222-0322, 3 pos in MPEC 2006-C41, follow-up (t) Desert Moon Obs. [448] 2006-02-07 0358-0455, 3 pos in MPEC 2006-C43, follow-up Spacewatch 1.8m telescope [291] 2006-02-07 0501-0509, 2 pos in MPEC 2006-C43, follow-up (t) See also information from the week ending 5 Feb. 2006. 2006 BM8 (K06B08M) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]

Size estimate: 28 meters per JPL H=25.40, MPC H=25.3 This object has been listed as an impact risk since 25 Jan. 2006. JPL classifies 2006 BM8 as an Apollo and calculates an Earth MOID of 0.003090 AU (1.20 LD), and reports this object passed Earth at 2.2 LD on 20 Jan. 2006 at 1316 UT. Lowell Observatory reports 2006 BM8 has an MOID of 0.03424 AU (13.32 LD) with Venus. Observations are reported from the following observatories in MPEC 2006-C37: Spacewatch 1.8m telescope [291] 2006-02-06 0423-0434, 2 pos in MPEC 2006-C37, follow-up (H) See also information from the week ending 5 Feb. 2006. 2006 CF10 (K06C10F) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]

Size estimate: 28 meters per JPL H=25.38, MPC H=25.4 JPL classifies 2006 CF10 as an Apollo and calculates an Earth MOID of 0.057288 AU (22.29 LD), and reports this object passed Earth at 22.4 LD on 31 Jan. 2006 Observations are reported from the following observatories in MPEC 2006-C42: Mt. Lemmon Survey (MLS) [G96] 2006-02-05 0714-0742, 4 pos in MPEC 2006-C42, discovery (*) 2006-02-06 0448-0450, 4 pos in MPEC 2006-C42, confirmation Spacewatch 1.8m telescope [291] 2006-02-07 0847-0853, 2 pos in MPEC 2006-C42, confirmation (t) Great Shefford Obs. [J95] 2006-02-08 0317-0339, 3 pos in MPEC 2006-C42, confirmation 2006 BC8 (K06B08C) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]

Size estimate: 32 meters per JPL H=25.14, MPC H=25.1 This object has been listed as an impact risk since 24 Jan. 2006. JPL classifies 2006 BC8 as an Apollo and calculates an Earth MOID of 0.001557 AU (0.61 LD), and reports this object passed Earth at 4.7 LD on 22 Jan. 2006 at 0607 UT. Observations are reported from the following observatories in MPECs 2006-C37 and 2006-C43: Spacewatch 1.8m telescope [291] 2006-02-06 0328-0339, 3 pos in MPEC 2006-C37, follow-up (H) 2006-02-07 0524-0536, 3 pos in MPEC 2006-C43, follow-up (H) See also information from the week ending 5 Feb. 2006. 2006 BX7 (K06B07X) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]

Size estimate: 42 meters per JPL H=24.52, MPC H=24.6 JPL classifies 2006 BX7 as an Apollo and calculates an Earth MOID of 0.008367 AU (3.26 LD), and reports this object passed Earth at 14.0 LD on 9 Jan. 2006 Observations are reported from the following observatories in MPEC 2006-C43: Spacewatch 1.8m telescope [291] 2006-02-07 0543-0556, 3 pos in MPEC 2006-C43, follow-up See also information from the week ending 5 Feb. 2006. 2006 BB8 (K06B08B) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]

Size estimate: 43 meters per JPL H=24.47, MPC H=24.5 JPL classifies 2006 BB8 as an Apollo and calculates an Earth MOID of 0.014930 AU (5.81 LD), and reports this object passed Earth at 10.9 LD on 12 Jan. 2006 Observations are reported from the following observatories in MPEC 2006-C41: Spacewatch 1.8m telescope [291] 2006-02-06 1111-1125, 3 pos in MPEC 2006-C41, follow-up See also information from the week ending 5 Feb. 2006. 2006 CW9 (K06C09W) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]

Size estimate: 49 meters per JPL H=24.21, MPC H=24.4 JPL classifies 2006 CW9 as an Apollo and calculates an Earth MOID of 0.018471 AU (7.19 LD), and reports this object passed Earth at 7.5 LD on 3 Feb. 2006 at 0339 UT. Observations are reported from the following observatories in MPECs 2006-C40 and 2006-C41: LINEAR [704] 2006-02-05 0653-0808, 5 pos in MPEC 2006-C40, discovery (*) 2006-02-06 0821-0936, 7 pos in MPEC 2006-C41, follow-up Farra d'Isonzo Obs. [595] 2006-02-06 0044-0053, 4 pos in MPEC 2006-C40, confirmation Sabino Canyon Obs. [854] 2006-02-06 0506-0509, 5 pos in MPEC 2006-C40, confirmation Mt. Lemmon Survey (MLS) [G96] 2006-02-06 0851-0904, 3 pos in MPEC 2006-C40, confirmation New Mexico Skies [H06{2}] coded to Robert Hutsebaut via Rent-A-Scope 2006-02-06 1139-1150, 3 pos in MPEC 2006-C40, confirmation 2006 BJ55 (K06B55J) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]

Size estimate: 49 meters per JPL H=24.21, MPC H=24.2 JPL classifies 2006 BJ55 as an Apollo and calculates an Earth MOID of 0.027612 AU (10.74 LD), and reports this object will pass Earth at 18.8 LD on 15 Feb. 2006 Observations are reported from the following observatories in MPEC 2006-C58: Faulkes Telescope North [F65{3}] coded to David Bowdley, FT Educ. Dir. 2006-02-09 1335-1337, 2 pos in MPEC 2006-C58, follow-up See also information from the week ending 5 Feb. 2006. 2006 BN26 (K06B26N) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]

Size estimate: 68 meters per JPL H=23.49, MPC H=23.5 JPL classifies 2006 BN26 as an Apollo and calculates an Earth MOID of 0.026180 AU (10.19 LD), and reports this object passed Earth at 16.8 LD on 10 Jan. 2006 Lowell Observatory reports 2006 BN26 has an MOID of 0.03013 AU (11.72 LD) with Mars. Observations are reported from the following observatories in MPEC 2006-C43: Desert Moon Obs. [448] 2006-02-07 0547-0641, 3 pos in MPEC 2006-C43, follow-up See also information from the week ending 5 Feb. 2006. 2006 BX26 (K06B26X) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]

Size estimate: 69 meters per JPL H=23.46, MPC H=23.4 JPL classifies 2006 BX26 as an Amor and calculates an Earth MOID of 0.175284 AU (68.20 LD). Observations are reported from the following observatories in MPEC 2006-C41: Spacewatch 1.8m telescope [291] 2006-02-06 1043-1055, 3 pos in MPEC 2006-C41, follow-up (H) See also information from the week ending 29 Jan. 2006. 2006 AG4 (K06A04G) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]

Size estimate: 80 meters per JPL H=23.12, MPC H=23.1 JPL classifies 2006 AG4 as an Amor and calculates an Earth MOID of 0.210304 AU (81.83 LD). Observations are reported from the following observatories in MPEC 2006-C41: Spacewatch 1.8m telescope [291] 2006-02-06 0444-0454, 2 pos in MPEC 2006-C41, follow-up (H) See also information from the week ending 22 Jan. 2006. 2006 CW (K06C00W) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]

Size estimate: 107 meters per JPL H=22.51, MPC H=22.5 JPL classifies 2006 CW as an Amor and calculates an Earth MOID of 0.153379 AU (59.68 LD). Observations are reported from the following observatories in MPECs 2006-C41 and 2006-C43: Spacewatch 1.8m telescope [291] 2006-02-06 1140-1153, 3 pos in MPEC 2006-C41, follow-up Spacewatch 0.9m telescope [691] 2006-02-07 0656-0746, 3 pos in MPEC 2006-C43, follow-up (H) See also information from the week ending 5 Feb. 2006. 2006 CL9 (K06C09L) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]

Size estimate: 114 meters per JPL H=22.36, MPC H=22.4 JPL classifies 2006 CL9 as an Amor and calculates an Earth MOID of 0.039632 AU (15.42 LD), and reports this object will pass Earth at 18.6 LD on 25 Feb. 2006 Observations are reported from the following observatories in MPECs 2006-C37, 2006-C43, and 2006-C62: LINEAR [704] 2006-02-05 0341-0455, 4 pos in MPEC 2006-C37, follow-up Desert Moon Obs. [448] 2006-02-07 0302-0314, 3 pos in MPEC 2006-C43, follow-up Trieste Obs. [A82] 2006-02-07 1757-1807, 3 pos in MPEC 2006-C62, follow-up See also information from the week ending 5 Feb. 2006. 2006 CT (K06C00T) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]

Size estimate: 123 meters per JPL H=22.20, MPC H=22.2 This object has been listed as an impact risk since 5 Feb. 2006. JPL classifies 2006 CT as an Apollo and calculates an Earth MOID of 0.002115 AU (0.82 LD). Observations are reported from the following observatories in MPECs 2006-C41 and 2006-C43: Spacewatch 1.8m telescope [291] 2006-02-06 0751-0802, 3 pos in MPEC 2006-C41, follow-up 2006-02-07 0742-0753, 3 pos in MPEC 2006-C43, follow-up Kanab Obs. [682] 2006-02-06 0753-0931, 3 pos in MPEC 2006-C41, follow-up Spacewatch 0.9m telescope [691] 2006-02-06 1120-1145, 2 pos in MPEC 2006-C41, follow-up (H) See also information from the week ending 5 Feb. 2006. 2006 BE55 (K06B55E) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]

Size estimate: 138 meters per JPL H=21.95, MPC H=21.9 -- borderline size ("not small") JPL classifies 2006 BE55 as an Apollo and calculates an Earth MOID of 0.023605 AU (9.18 LD), and reports this object will pass Earth at 16.1 LD on 27 Feb. 2006 Lowell Observatory reports 2006 BE55 has significant MOIDs with planets Venus (0.00395 AU = 1.54 LD) and Mars (0.04381 AU = 17.05 LD). Observations are reported from the following observatories in MPECs 2006-C43 and 2006-C50: Mt. Lemmon Survey (MLS) [G96] 2006-02-07 0942-1011, 4 pos in MPEC 2006-C43, follow-up Catalina Sky Survey (CSS) [703] 2006-02-08 0921-0953, 4 pos in MPEC 2006-C50, follow-up See also information from the week ending 5 Feb. 2006.

48 Hours [ Objects Listings (size order) | Object Index (alpha/xref) | top ]

Observations of one small object was reported during the last 48 hours: 2006 CL9 in MPEC 2006-C62 (Daily Orbit Update) time-stamped 2006 Feb. 11, 07:26 UT. Date & times for other sources that were parsed to compile this page: JPL Close Approaches, downloaded at 2006 Feb. 12, 1840 UTC JPL NEO Orbital Elements, downloaded at 2006 Feb. 12, 1851 UTC Lowell Observatory Orbit intersections, time-stamped 2006 Feb 12 17:35:06 UTC MPC NEA.DAT from MPC mirror, downloaded at 2006 Feb. 12, 1840 UTC Risk monitoring sites, as of A/CC's check at 2006 Feb. 12, 2051 UTC (see CRT page)

Viewing Opportunities for Small Objects [ news | size order | alpha order | top ]

This compilation shows 32 small objects as being currently in view, including 19 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 BG99 2006-02-13 0.038132 24 25.72 9 - (4 Feb.) 2006 CF10 2006-02-14 0.057288 28 25.38 3 - (8 Feb.) 2006 BB8 2006-02-15 0.014930 43 24.47 14 - (7 Feb.) 2006 AM4 2006-02-16 0.010979 140 21.92 24 - recent info - (4 Feb.) 2006 AP3 2006-02-16 0.097588 63 23.65 26 - recent info - (4 Feb.) 2006 BA8 2006-02-17 0.175435 52 24.07 12 - recent info - (5 Feb.) 2006 BC8 2006-02-17 0.001557 32 25.14 15 - risk listed - (8 Feb.) 2005 CP38 2006-02-18 0.062480 63 23.66 8 - very faint recov. poss. - (23 Dec.) 2006 BL55 2006-02-18 0.027281 48 24.26 7 - recent info - (4 Feb.) 2005 RA3 2006-02-20 0.048586 132 22.04 141 - recent info - (22 Jan.) 2006 CL 2006-02-20 0.019833 28 25.45 5 - (8 Feb.) 2006 BP7 2006-02-21 0.062600 77 23.21 9 - recent info - (1 Feb.) 2006 BA9 2006-02-21 0.072861 92 22.84 11 - recent info - (5 Feb.) 2006 CW9 2006-02-21 0.018471 49 24.21 1 - (7 Feb.) 2002 LW 2006-02-22 0.034393 110 22.45 2op - recent info - (28 Dec.) 2006 AW44 2006-02-22 0.120608 71 23.38 19 - recent info - (4 Feb.) 2006 BF 2006-02-23 0.012392 69 23.46 11 - recent info - (4 Feb.) 2005 CN 2006-02-23 0.029201 85 23.01 2op - recent info - (4 Feb.) 2006 BN26 2006-02-28 0.026180 68 23.49 13 - (8 Feb.) 2005 ML13 2006-03-02 0.062125 112 22.41 2op - recent info - (30 Jan.) 2006 BJ55 2006-03-02 0.027612 49 24.21 14 - (10 Feb.) 2006 BO6 2006-03-04 0.030260 113 22.39 10 - recent info - (4 Feb.) 2006 BE55 2006-03-05 0.023605 138 21.95 13 - (9 Feb.) 2006 BZ147 2006-03-06 0.002250 28 25.42 7 - risk listed - (8 Feb.) 2005 RZ2 2006-03-08 0.077868 77 23.22 5 - (28 Dec.) 2006 AX44 2006-03-09 0.117155 35 24.93 21 - recent info - (4 Feb.) 1999 AO10 2006-03-18 0.021364 57 23.86 33 - faint recov. poss. - (15 Dec.) 2006 CT 2006-03-20 0.002115 123 22.20 5 - risk listed - (8 Feb.) 2005 XO4 2006-04-20 0.021856 126 22.14 23 - recent info - (7 Jan.) 2006 CW 2006-05-30 0.153379 107 22.51 4 - (8 Feb.) 2006 CL9 2006-06-03 0.039632 114 22.36 4 - (11 Feb.) 2005 YA37 2006-07-09 0.035667 111 22.43 26 - recent info - (4 Feb.) Coming into view soon: 2005 CN61 2006-02-28 0.021639 29 25.30 6 - >21 Feb., very faint recov. poss. - (15 Dec.) Viewing by designation order - see also Viewing by date order Object View until MOID AU Dia H Arc Notes (calc date) ---------- ---------- -------- --- ----- --- - ----------------------- 2006 CF10 2006-02-14 0.057288 28 25.38 3 - (8 Feb.) 2006 CW9 2006-02-21 0.018471 49 24.21 1 - (7 Feb.) 2006 CL9 2006-06-03 0.039632 114 22.36 4 - (11 Feb.) 2006 CW 2006-05-30 0.153379 107 22.51 4 - (8 Feb.) 2006 CT 2006-03-20 0.002115 123 22.20 5 - risk listed - (8 Feb.) 2006 CL 2006-02-20 0.019833 28 25.45 5 - (8 Feb.) 2006 BZ147 2006-03-06 0.002250 28 25.42 7 - risk listed - (8 Feb.) 2006 BG99 2006-02-13 0.038132 24 25.72 9 - (4 Feb.) 2006 BL55 2006-02-18 0.027281 48 24.26 7 - recent info - (4 Feb.) 2006 BJ55 2006-03-02 0.027612 49 24.21 14 - (10 Feb.) 2006 BE55 2006-03-05 0.023605 138 21.95 13 - (9 Feb.) 2006 BN26 2006-02-28 0.026180 68 23.49 13 - (8 Feb.) 2006 BA9 2006-02-21 0.072861 92 22.84 11 - recent info - (5 Feb.) 2006 BC8 2006-02-17 0.001557 32 25.14 15 - risk listed - (8 Feb.) 2006 BB8 2006-02-15 0.014930 43 24.47 14 - (7 Feb.) 2006 BA8 2006-02-17 0.175435 52 24.07 12 - recent info - (5 Feb.) 2006 BP7 2006-02-21 0.062600 77 23.21 9 - recent info - (1 Feb.) 2006 BO6 2006-03-04 0.030260 113 22.39 10 - recent info - (4 Feb.) 2006 BF 2006-02-23 0.012392 69 23.46 11 - recent info - (4 Feb.) 2006 AX44 2006-03-09 0.117155 35 24.93 21 - recent info - (4 Feb.) 2006 AW44 2006-02-22 0.120608 71 23.38 19 - recent info - (4 Feb.) 2006 AM4 2006-02-16 0.010979 140 21.92 24 - recent info - (4 Feb.) 2006 AP3 2006-02-16 0.097588 63 23.65 26 - recent info - (4 Feb.) 2005 YA37 2006-07-09 0.035667 111 22.43 26 - recent info - (4 Feb.) 2005 XO4 2006-04-20 0.021856 126 22.14 23 - recent info - (7 Jan.) 2005 RA3 2006-02-20 0.048586 132 22.04 141 - recent info - (22 Jan.) 2005 RZ2 2006-03-08 0.077868 77 23.22 5 - (28 Dec.) 2005 ML13 2006-03-02 0.062125 112 22.41 2op - recent info - (30 Jan.) 2005 CN61 2006-02-28 0.021639 29 25.30 6 - >21 Feb., very faint recov. poss. - (15 Dec.) 2005 CP38 2006-02-18 0.062480 63 23.66 8 - very faint recov. poss. - (23 Dec.) 2005 CN 2006-02-23 0.029201 85 23.01 2op - recent info - (4 Feb.) 2002 LW 2006-02-22 0.034393 110 22.45 2op - recent info - (28 Dec.) 1999 AO10 2006-03-18 0.021364 57 23.86 33 - faint recov. poss. - (15 Dec.) Out-of-view date based on MPES solar elongation <40° and/or magnitude V>22.0 at 1200 UT. (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.

Small object observation cross index [ size order | 48 Hours | viewing | top ]

Object

Observed by MPC code

291

291

291

703, G96