MPEC 2008-A11 : 2007 YQ56
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M.P.E.C. 2008-A11 Issued 2008 Jan. 2, 15:53 UT
The Minor Planet Electronic Circulars contain information on unusual
minor planets and routine data on comets. They are published
on behalf of Commission 20 of the International Astronomical Union by the
Minor Planet Center, Smithsonian Astrophysical Observatory,
Cambridge, MA 02138, U.S.A.
Prepared using the Tamkin Foundation Computer Network
MPC@CFA.HARVARD.EDU
URL http://www.cfa.harvard.edu/iau/mpc.html ISSN 1523-6714
2007 YQ56
Observations:
K07Y56Q* C2007 12 31.14551 01 41 29.61 +30 33 53.9 19.0 r EA011699
K07Y56Q C2007 12 31.16936 01 41 30.40 +30 31 24.6 18.4 r EA011699
K07Y56Q C2007 12 31.19317 01 41 30.97 +30 28 56.8 18.9 r EA011699
K07Y56Q C2007 12 31.21703 01 41 31.74 +30 26 26.7 18.7 r EA011699
K07Y56Q C2007 12 31.24970 01 41 32.71 +30 23 03.3 18.9 V EA011G96
K07Y56Q C2007 12 31.25024 01 41 32.71 +30 22 59.7 18.9 V EA011G96
K07Y56Q C2007 12 31.25078 01 41 32.74 +30 22 56.5 18.9 V EA011G96
K07Y56Q C2007 12 31.26090 01 41 33.06 +30 21 54.5 18.8 R EA011651
K07Y56Q C2007 12 31.26301 01 41 33.10 +30 21 41.0 18.6 R EA011651
K07Y56Q C2007 12 31.26407 01 41 33.17 +30 21 34.5 18.8 R EA011651
K07Y56Q C2007 12 31.69922 01 41 54.09 +29 36 32.3 18.6 V EA011595
K07Y56Q C2007 12 31.70695 01 41 54.34 +29 35 44.3 18.4 V EA011595
K07Y56Q C2007 12 31.71472 01 41 54.61 +29 34 56.3 19.0 V EA011595
K07Y56Q C2007 12 31.74398 01 41 55.58 +29 31 55.4 18.5 R EA011235
K07Y56Q C2007 12 31.74592 01 41 55.79 +29 31 43.2 18.8 R EA011143
K07Y56Q C2007 12 31.74610 01 41 55.62 +29 31 41.9 18.7 R EA011235
K07Y56Q C2007 12 31.74832 01 41 55.70 +29 31 28.1 18.7 R EA011235
K07Y56Q C2007 12 31.75593 01 41 56.05 +29 30 40.9 19.3 R EA011143
K07Y56Q C2007 12 31.78101 01 41 56.87 +29 28 05.9 18.6 R EA011A24
K07Y56Q C2007 12 31.78222 01 41 56.90 +29 27 58.3 18.7 R EA011A24
K07Y56Q C2007 12 31.78345 01 41 56.95 +29 27 50.5 18.7 R EA011A24
K07Y56Q C2007 12 31.79189 01 41 57.24 +29 26 58.2 18.8 R EA011A24
K07Y56Q C2007 12 31.81855 01 41 58.09 +29 24 12.1 EA011204
K07Y56Q C2007 12 31.82275 01 41 58.22 +29 23 45.9 18.8 R EA011204
K07Y56Q C2007 12 31.82695 01 41 58.36 +29 23 19.7 EA011204
K07Y56Q C2008 01 01.15383 01 42 12.74 +28 49 38.8 19.2 V EA011G96
K07Y56Q tC2008 01 01.16160 01 42 13.04 +28 48 52.0 EA011291
K07Y56Q tC2008 01 01.16578 01 42 13.20 +28 48 24.9 EA011291
K07Y56Q C2008 01 01.16718 01 42 13.19 +28 48 17.4 EA011701
K07Y56Q tC2008 01 01.16999 01 42 13.35 +28 47 59.4 EA011291
K07Y56Q C2008 01 01.17081 01 42 13.32 +28 47 53.1 19.3 V EA011G96
K07Y56Q C2008 01 01.17273 01 42 13.35 +28 47 41.6 EA011701
K07Y56Q C2008 01 01.17829 01 42 13.56 +28 47 06.9 EA011701
K07Y56Q C2008 01 01.17940 01 42 13.60 +28 46 59.6 19.2 V EA011G96
K07Y56Q C2008 01 01.18384 01 42 13.73 +28 46 32.2 EA011701
K07Y56Q C2008 01 01.72319 01 42 40.09 +27 50 41.1 18.7 R EA011A24
K07Y56Q C2008 01 01.72460 01 42 40.14 +27 50 32.5 18.8 R EA011A24
K07Y56Q C2008 01 01.72561 01 42 40.12 +27 50 26.8 18.7 R EA011A24
K07Y56Q C2008 01 01.72622 01 42 40.19 +27 50 23.1 18.9 R EA011A24
K07Y56Q C2008 01 01.72682 01 42 40.22 +27 50 19.7 18.6 R EA011A24
K07Y56Q C2008 01 01.72804 01 42 40.27 +27 50 12.1 18.8 R EA011A24
K07Y56Q C2008 01 01.72926 01 42 40.33 +27 50 04.7 18.7 R EA011A24
Observer details:
143 Gnosca. Observer S. Sposetti. 0.40-m f/4 reflector + CCD.
204 Schiaparelli Observatory. Observers L. Buzzi, F. Luppi. Measurer
L. Buzzi. 0.60-m f/4.64 reflector + CCD.
235 CAST Observatory, Talmassons. Observer R. Ligustri. 0.35-m f/5 reflector
+ CCD.
291 LPL/Spacewatch II. Observer R. S. McMillan. 1.8-m f/2.7 reflector + CCD.
595 Farra d'Isonzo. Observers L. Bittesini, G. Lombardi, E. Pettarin,
F. Piani. Measurer F. Piani. 0.40-m f/4.5 reflector + CCD.
651 Grasslands Observatory, Tucson. Observer J. E. McGaha. 0.62-m f/5.1
Newtonian reflector + CCD.
699 Lowell Observatory-LONEOS. Observer J. J. Sanborn. 0.59-m LONEOS Schmidt
+ CCD.
701 Junk Bond Observatory, Sierra Vista. Observer D. Healy. 0.81-m f/4.4
Ritchey-Chretien + CCD.
A24 New Millennium Observatory, Mozzate. Observer E. Cozzi. 0.36-m f/7.6
Schmidt-Cassegrain + CCD.
G96 Mt. Lemmon Survey. Observers R. A. Kowalski, E. C. Beshore. Measurers
E. C. Beshore, A. Boattini, G. J. Garradd, A. R. Gibbs, A. D. Grauer,
R. E. Hill, R. A. Kowalski, S. M. Larson, R. H. McNaught. 1.5-m reflector
+ CCD.
Orbital elements:
2007 YQ56 PHA, Earth MOID = 0.0132 AU
Epoch 2007 Oct. 27.0 TT = JDT 2454400.5 MPC
M 238.24862 (2000.0) P Q
n 0.80676237 Peri. 273.08665 -0.88150700 +0.15144927
a 1.1428054 Node 275.95595 +0.04455397 -0.91625779
e 0.2897776 Incl. 26.72125 -0.47006420 -0.37085681
P 1.22 H 19.7 G 0.15 U 8
Residuals in seconds of arc
071231 699 0.0 0.2+ 071231 143 0.6+ 0.3+ 080101 701 0.2+ 0.6+
071231 699 1.4+ 0.5- 071231 235 0.0 0.1- 080101 291 0.4+ 0.3+
071231 699 0.3- 0.4+ 071231 235 0.1+ 0.2- 080101 G96 0.1- 0.5-
071231 699 0.3+ 0.5- 071231 143 0.2- 0.0 080101 701 0.1- 0.5-
071231 G96 0.1+ 0.4- 071231 A24 0.1- 0.3+ 080101 701 0.3+ 0.5-
071231 G96 0.1- 0.6- 071231 A24 0.2- 0.2+ 080101 G96 0.1- 0.4-
071231 G96 0.0 0.5- 071231 A24 0.0 0.1+ 080101 701 0.1+ 0.6-
071231 651 0.0 0.7+ 071231 A24 0.2+ 0.2+ 080101 A24 0.2+ 0.6-
071231 651 0.4- 0.5+ 071231 204 0.2- 0.0 080101 A24 0.2+ 0.5-
071231 651 0.0 0.6+ 071231 204 0.3- 0.0 080101 A24 0.6- 0.0
071231 595 0.1- 0.1+ 071231 204 0.3- 0.0 080101 A24 0.0 0.1+
071231 595 0.1- 0.1- 080101 G96 0.5- 0.7- 080101 A24 0.2+ 0.4+
071231 595 0.2+ 0.1- 080101 291 0.1- 0.6+ 080101 A24 0.2+ 0.4+
071231 235 0.3+ 0.2+ 080101 291 0.2+ 0.5- 080101 A24 0.4+ 0.5+
Ephemeris:
2007 YQ56 a,e,i = 1.14, 0.29, 27 q = 0.8116
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2007 12 26 01 38.96 +39 20.0 0.269 1.143 120.2 48.1 18.9
2007 12 31 01 41.40 +30 49.1 0.264 1.119 114.6 53.0 19.0
2008 01 05 01 45.51 +22 14.6 0.264 1.095 108.3 58.5 19.1
2008 01 10 01 50.75 +13 58.4 0.269 1.071 101.7 64.1 19.3
2008 01 15 01 56.70 +06 15.9 0.279 1.047 95.2 69.4 19.5
2008 01 20 02 03.00 -00 46.2 0.291 1.022 89.2 74.2 19.7
2008 01 25 02 09.30 -07 07.2 0.306 0.998 83.7 78.6 19.9
2008 01 30 02 15.33 -12 50.3 0.322 0.974 78.7 82.4 20.1
2008 02 04 02 20.84 -18 00.1 0.339 0.951 74.2 85.7 20.3
2008 02 09 02 25.57 -22 41.8 0.356 0.929 70.2 88.6 20.4
2008 02 14 02 29.22 -27 00.0 0.372 0.907 66.7 91.1 20.6
Timothy B. Spahr (C) Copyright 2008 MPC M.P.E.C. 2008-A11
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