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Earth's Busy Neighborhood

    ACC's Small Object Report for 12-18 Dec. 2005    

A semi-automated report compiled on 19 December 2005 at 0001 UTC

There are 7 small objects reported in the last 168 hours, during which 0 were newly discovered.
Currently 922 NEAs are listed with H>22.0 by JPL and/or the Minor Planet Center (756 are listed as such by both).

[ Small Object News | Objects (by size) | Object Index (alpha/xref) | 48 Hours | Viewing | Weekly ]
Editor's note: Long-time A/CC readers will recognize this page as a resumption of our weekly small object reports published for awhile last year. This feature in its new form is intended to update when needed as time permits on a daily basis, and a copy will be archived off on Sundays.
      Object listing order is by smallest size first, with size calculated using a standard but very general formula based on an object's absolute magnitude (H), or brightness. ("Small" is less than roughly 135 meters in diameter, below the size theoretically considered to be potentially hazardous.) Observatory order within object listings is by earliest observation during the reporting period.
      Updates to this page are flagged on A/CC's RSS news feed.


Small Object News (newest items first) [ object listings | index | 48 Hours | Viewing | top ]

Object Listings -- smallest objects first [ Alpha Index | 48 Hours | top ]
2005 XO66 (K05X66O) [ JPL Orbit Viewer | NEODyS object home page | index | top ]
Size estimate: 40 meters per JPL H=24.65, MPC H=24.5 JPL classifies 2005 XO66 as an Apollo and calculates an Earth MOID of 0.009640 AU (3.77 LD), and reports this object passes Earth at 5.0 lunar distances (LD) on 19 Dec. at 2303 UT. Lowell Observatory reports 2005 XO66 has an MOID of 0.02577 AU (10.07 LD) with Mars. Observations are reported from the following observatories in MPECs 2005-Y04 and 2005-Y05. Great Shefford Obs. [J95] 2005-12-15 1838-1843, 2 pos in MPEC 2005-Y04, follow-up 2005-12-16 1750-1759, 3 pos in MPEC 2005-Y04, follow-up 2005-12-17 2214-2218, 3 pos in MPEC 2005-Y05, follow-up Consell Obs. [176] 2005-12-16 2328-2330, 5 pos in MPEC 2005-Y04, follow-up See also information from the week ending 11 Dec. 2005. 2005 UL6 (K05U06L) [ JPL Orbit Viewer | NEODyS object home page | index | top ]
Size estimate: 42 meters per JPL H=24.51, MPC H=24.5 This object has been listed as an impact risk since 30 Oct. 2005. JPL classifies 2005 UL6 as an Apollo and calculates an Earth MOID of 0.004333 AU (1.69 LD). Lowell Observatory reports 2005 UL6 has an MOID of 0.02812 AU (10.98 LD) with Mars. Observations are reported from the following observatories in MPEC 2005-X82. Mauna Kea [568{2}] coded to David Tholen et al. 2005-11-11 0909-0912, 2 pos in MPEC 2005-X82, follow-up 2005 UN5 (K05U05N) [ JPL Orbit Viewer | NEODyS object home page | index | top ]
Size estimate: 48 meters per JPL H=24.23, MPC H=24.4 JPL classifies 2005 UN5 as an Amor and calculates an Earth MOID of 0.054866 AU (21.43 LD). Observations are reported from the following observatories in MPEC 2005-X82. Mauna Kea [568{2}] coded to David Tholen et al. 2005-11-12 1007-1010, 2 pos in MPEC 2005-X82, follow-up 2005 RJ3 (K05R03J) [ JPL Orbit Viewer | NEODyS object home page | index | top ]
Size estimate: 69 meters per JPL H=23.45, MPC H=23.4 JPL classifies 2005 RJ3 as an Amor and calculates an Earth MOID of 0.071607 AU (27.97 LD). Observations are reported from the following observatories in MPEC 2005-Y01. Mauna Kea [568{2}] coded to David Tholen et al. 2005-11-12 0723-0729, 2 pos in MPEC 2005-Y01, follow-up 2005 WK56 (K05W56K) [ JPL Orbit Viewer | NEODyS object home page | index | top ]
Size estimate: 105 meters per JPL H=22.54, MPC H=22.6 JPL classifies 2005 WK56 as an Apollo and calculates an Earth MOID of 0.030957 AU (12.09 LD), and reports this object passed Earth at 16.7 LD on 28 Nov. Observations are reported from the following observatories in MPECs 2005-X66, 2005-X73, 2005-Y04, and 2005-Y05. College of Staten Island Obs. [294] 2005-12-03 0606-0610, 2 pos in MPEC 2005-X73, follow-up 2005-12-04 0029-0055, 5 pos in MPEC 2005-X73, follow-up Verona Obs. [A48] 2005-12-07 2149-2157, 4 pos in MPEC 2005-Y05, follow-up 2005-12-09 2124-2132, 4 pos in MPEC 2005-Y05, follow-up Lumezzane Obs. [130] 2005-12-10 0049-0102, 4 pos in MPEC 2005-X66, follow-up Herrenberg Obs. [240] 2005-12-11 2031-2047, 9 pos in MPEC 2005-X66, follow-up Consell Obs. [176] 2005-12-16 2303-2309, 3 pos in MPEC 2005-Y04, follow-up See also information from the week ending 11 Dec. 2005. 2005 RA3 (K05R03A) [ JPL Orbit Viewer | NEODyS object home page | index | top ]
Size estimate: 123 meters per MPC H=22.2 Lowell Observatory reports 2005 RA3 has significant MOIDs with planets Earth (0.04884 AU = 19.08 LD) and Mars (0.02734 AU = 10.68 LD). Observations are reported from the following observatories in MPEC 2005-Y05. Leura Obs. [E17] 2005-12-17 1117-1133, 3 pos in MPEC 2005-Y05, follow-up 2005 XO4 (K05X04O) [ JPL Orbit Viewer | NEODyS object home page | index | top ]
Size estimate: 125 meters per JPL H=22.16, MPC H=22.1 JPL classifies 2005 XO4 as an Apollo and calculates an Earth MOID of 0.021748 AU (8.50 LD), and reports this object will pass Earth at 18.5 LD on 1 Jan. 2006 Observations are reported from the following observatories in MPECs 2005-Y01 and 2005-Y04. Desert Moon Obs. [448] 2005-12-15 0209-0246, 3 pos in MPEC 2005-Y01, follow-up Great Shefford Obs. [J95] 2005-12-16 1822-1909, 3 pos in MPEC 2005-Y04, follow-up See also information from the week ending 11 Dec. 2005.
48 Hours [ Objects Listings (size order) | Object Index (alpha/xref) | top ]
Observations of four small objects were reported during the last 48 hours (17-18 Dec. 2005): 2005 RA3, 2005 WK56, 2005 XO4 & 2005 XO66 in MPECs: 2005-Y04 time-stamped 2005 Dec. 17, 07:15 UT - Daily Orbit Update 2005-Y05 time-stamped 2005 Dec. 18, 07:16 UT - Daily Orbit Update Date & times for other sources that were parsed to compile this page: JPL Close Approaches, downloaded at 2005 Dec. 18, 1638 UTC JPL NEO Orbital Elements, downloaded at 2005 Dec. 18, 1754 UTC Lowell Observatory Orbit intersections, time-stamped 2005 Dec 18 13:37:12 UTC MPC NEA.DAT from MPC mirror, downloaded at 2005 Dec. 18, 1638 UTC Risk monitoring sites, as of A/CC's check at 2005 Dec. 18, 2359 UTC (see CRT page)
Viewing Opportunities for Small Objects [ size order | alpha order | top ]
Some small objects still in view may be missing from this list. Viewing by date order - see also Viewing by designation order Object View until MOID AU Dia H Arc Notes (calc date) ---------- ---------- -------- --- ----- --- - ----------------------- 2005 XN 2005-12-19 0.060384 56 23.92 - recent info - (14 Dec.) 2004 HR56 2005-12-19 0.060603 75 23.28 2 - faint recov. poss. - (15 Dec.) 2005 XX4 2005-12-20 0.015965 46 24.35 0 - recent info - (14 Dec.) 2005 XY4 2005-12-21 0.011366 67 23.52 1 - recent info - (14 Dec.) 2005 XZ7 2005-12-21 0.048697 46 24.33 3 - recent info - (14 Dec.) 2005 XA8 2005-12-22 0.001284 25 25.63 4 - recent info - (14 Dec.) 2005 VA 2005-12-22 0.068946 87 22.95 - recent info - (14 Dec.) 2005 WF4 2005-12-23 0.181143 93 22.80 - recent info - (14 Dec.) 2000 WC1 2005-12-25 0.00333 107 22.5 35 - faint recov. poss. - (15 Dec.) 2005 XO66 2005-12-26 0.009640 40 24.65 6 - (17 Dec.) 2005 WG57 2005-12-27 0.001719 63 23.64 10 - recent info - (14 Dec.) 2005 XN27 2005-12-30 0.002776 44 24.41 2 - recent info - (14 Dec.) 2005 XO4 2005-12-30 0.021748 125 22.16 11 - (17 Dec.) 2005 VT7 2005-12-31 0.018313 97 22.71 20 - recent info - (14 Dec.) 2005 WZ 2005-12-31 0.071248 95 22.75 - recent info - (14 Dec.) 2005 WZ55 2006-01-01 0.066244 48 24.24 - recent info - (14 Dec.) 2005 VD7 2006-01-02 0.019187 130 22.08 24 - recent info - (14 Dec.) 2005 WF55 2006-01-02 0.026165 18 26.35 10 - recent info - (14 Dec.) 2005 XC1 2006-01-04 0.038985 62 23.70 6 - recent info - (14 Dec.) 2005 SD71 2006-01-04 0.082214 78 23.18 - recent info - (14 Dec.) 2005 XL4 2006-01-08 0.213816 97 22.72 1 - recent info - (14 Dec.) 2005 WP57 2006-01-11 0.111645 74 23.29 - recent info - (14 Dec.) 2005 WK56 2006-01-16 0.030957 105 22.54 16 - (17 Dec.) 2005 XX77 2006-01-21 0.031989 59 23.80 2 - recent info - (14 Dec.) 2005 XC 2006-01-23 0.007969 96 22.74 9 - recent info - (14 Dec.) 2003 YT70 2006-01-26 0.053689 26 25.55 22 - bright recov. poss. - (15 Dec.) 2002 JD9 2006-01-29 0.053416 111 22.42 9 - bright recov. poss. > 20 Dec. - (15 Dec.) 2005 VH1 2006-01-30 0.135401 83 23.05 32 - recent info - (14 Dec.) 2005 UR64 2006-02-03 0.090638 64 23.62 32 - recent info - (14 Dec.) 2005 RA3 2006-02-20 0.04884 123 22.2 49 - (18 Dec.) 2005 CN 2006-02-24 0.028891 85 22.99 13 - bright recov. poss. > 19 Dec. - (15 Dec.) 2005 CN61 2006-02-28 0.021639 29 25.30 5 - very faint recov. poss. > 21 Feb. - (15 Dec.) 1999 NW2 2006-03-10 0.016428 80 23.13 28 - very faint recov. poss. > 24 Feb. - (15 Dec.) 1999 AO10 2006-03-18 0.021364 57 23.86 32 - faint recov. poss. > 12 Feb. - (15 Dec.) 2002 GD10 2006-05-11 0.060027 121 22.23 - faint recov. poss. > 26 March - (15 Dec.) Viewing by designation order - see also Viewing by date order Object View until MOID AU Dia H Arc Notes (calc date) ---------- ---------- -------- --- ----- --- - ----------------------- 2005 XX77 2006-01-21 0.031989 59 23.80 2 - recent info - (14 Dec.) 2005 XO66 2005-12-26 0.009640 40 24.65 6 - (17 Dec.) 2005 XN27 2005-12-30 0.002776 44 24.41 2 - recent info - (14 Dec.) 2005 XA8 2005-12-22 0.001284 25 25.63 4 - recent info - (14 Dec.) 2005 XZ7 2005-12-21 0.048697 46 24.33 3 - recent info - (14 Dec.) 2005 XY4 2005-12-21 0.011366 67 23.52 1 - recent info - (14 Dec.) 2005 XX4 2005-12-20 0.015965 46 24.35 0 - recent info - (14 Dec.) 2005 XO4 2005-12-30 0.021748 125 22.16 11 - (17 Dec.) 2005 XL4 2006-01-08 0.213816 97 22.72 1 - recent info - (14 Dec.) 2005 XC1 2006-01-04 0.038985 62 23.70 6 - recent info - (14 Dec.) 2005 XN 2005-12-19 0.060384 56 23.92 - recent info - (14 Dec.) 2005 XC 2006-01-23 0.007969 96 22.74 9 - recent info - (14 Dec.) 2005 WP57 2006-01-11 0.111645 74 23.29 - recent info - (14 Dec.) 2005 WG57 2005-12-27 0.001719 63 23.64 10 - recent info - (14 Dec.) 2005 WK56 2006-01-16 0.030957 105 22.54 16 - (17 Dec.) 2005 WZ55 2006-01-01 0.066244 48 24.24 - recent info - (14 Dec.) 2005 WF55 2006-01-02 0.026165 18 26.35 10 - recent info - (14 Dec.) 2005 WF4 2005-12-23 0.181143 93 22.80 - recent info - (14 Dec.) 2005 WZ 2005-12-31 0.071248 95 22.75 - recent info - (14 Dec.) 2005 VT7 2005-12-31 0.018313 97 22.71 20 - recent info - (14 Dec.) 2005 VD7 2006-01-02 0.019187 130 22.08 24 - recent info - (14 Dec.) 2005 VH1 2006-01-30 0.135401 83 23.05 32 - recent info - (14 Dec.) 2005 VA 2005-12-22 0.068946 87 22.95 - recent info - (14 Dec.) 2005 UR64 2006-02-03 0.090638 64 23.62 32 - recent info - (14 Dec.) 2005 SD71 2006-01-04 0.082214 78 23.18 - recent info - (14 Dec.) 2005 RA3 2006-02-20 0.04884 123 22.2 49 - (18 Dec.) 2005 CN61 2006-02-28 0.021639 29 25.30 5 - very faint recov. poss. > 21 Feb. - (15 Dec.) 2005 CN 2006-02-24 0.028891 85 22.99 13 - bright recov. poss. > 19 Dec. - (15 Dec.) 2004 HR56 2005-12-19 0.060603 75 23.28 2 - faint recov. poss. - (15 Dec.) 2003 YT70 2006-01-26 0.053689 26 25.55 22 - bright recov. poss. - (15 Dec.) 2002 JD9 2006-01-29 0.053416 111 22.42 9 - bright recov. poss. > 20 Dec. - (15 Dec.) 2002 GD10 2006-05-11 0.060027 121 22.23 - faint recov. poss. > 26 March - (15 Dec.) 2000 WC1 2005-12-25 0.00333 107 22.5 35 - faint recov. poss. - (15 Dec.) 1999 NW2 2006-03-10 0.016428 80 23.13 28 - very faint recov. poss. > 24 Feb. - (15 Dec.) 1999 AO10 2006-03-18 0.021364 57 23.86 32 - faint recov. poss. > 12 Feb. - (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 whole days from Lowell Observatory's Orbit intersections page (if an object has no significant MOIDs, this source doesn't report the object and its arc).
Small object observation cross index [ size order | 48 Hours | Viewing | top ]
ObjectObserved by MPC code
2005 RA3E17
2005 RJ3568
2005 UL6568
2005 UN5568
2005 WK56130, 176, 240, 294, A48
2005 XO4448, J95
2005 XO66176, J95
CodeObservatoryObjects Observed
130Lumezzane Obs. 2005 WK56
176Consell Obs. 2005 WK56, 2005 XO66
240Herrenberg Obs. 2005 WK56
294College of Staten Island Obs. 2005 WK56
448Desert Moon Obs. 2005 XO4
5682Mauna Kea - David Tholen et al.2005 RJ3, 2005 UL6, 2005 UN5
A48Verona Obs. 2005 WK56
E17Leura Obs. 2005 RA3
J95Great Shefford Obs. 2005 XO4, 2005 XO66
[ object listings | index | 48 Hours | Viewing | top ]

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