MPEC 2007-Y20 : 2007 YZ
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M.P.E.C. 2007-Y20 Issued 2007 Dec. 18, 05:26 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 YZ
Observations:
K07Y00Z* C2007 12 17.66571 07 33 05.21 +20 25 59.4 18.4 R EY020300
K07Y00Z C2007 12 17.66861 07 33 04.93 +20 26 09.9 18.8 R EY020300
K07Y00Z C2007 12 17.67151 07 33 04.77 +20 26 21.2 18.5 R EY020300
K07Y00Z C2007 12 17.67440 07 33 04.53 +20 26 31.4 18.8 R EY020300
K07Y00Z C2007 12 17.67728 07 33 04.33 +20 26 42.5 18.4 R EY020300
K07Y00Z C2007 12 17.68019 07 33 04.11 +20 26 53.1 18.7 R EY020300
K07Y00Z C2007 12 17.68308 07 33 03.80 +20 27 03.8 19.1 R EY020300
K07Y00Z C2007 12 17.76024 07 32 57.83 +20 31 50.7 EY020349
K07Y00Z C2007 12 17.76259 07 32 57.66 +20 31 59.9 EY020349
K07Y00Z C2007 12 17.76494 07 32 57.49 +20 32 08.2 EY020349
K07Y00Z C2007 12 17.76729 07 32 57.29 +20 32 17.3 18.0 V EY020349
K07Y00Z C2007 12 17.85350 07 32 54.66 +20 37 31.1 17.5 R EY020461
K07Y00Z C2007 12 17.85593 07 32 54.49 +20 37 40.2 EY020461
K07Y00Z C2007 12 17.85838 07 32 54.33 +20 37 49.7 EY020461
K07Y00Z C2007 12 17.85846 07 32 54.41 +20 37 47.0 17.8 V EY020A17
K07Y00Z C2007 12 17.86366 07 32 53.96 +20 38 09.8 EY020461
K07Y00Z IC2007 12 17.86531 07 32 54.03 +20 38 12.9 17.7 V EY020A17
K07Y00Z C2007 12 17.86569 07 32 53.82 +20 38 17.9 EY020461
K07Y00Z C2007 12 17.87147 07 32 53.52 +20 38 37.2 17.7 V EY020A17
K07Y00Z C2007 12 17.90257 07 32 51.42 +20 40 40.0 17.2 V EY020595
K07Y00Z C2007 12 17.91591 07 32 50.47 +20 41 30.8 17.1 V EY020595
Observer details:
300 Bisei Spaceguard Center--BATTeRS. Observers S. Urakawa, T. Sakamoto.
1.0-m f/3.0 reflector + CCD.
349 Ageo. Observer K. Kadota. 0.25-m f/5.0 reflector + CCD.
461 University of Szeged, Piszkesteto Stn. (Konkoly). Observer K. Sarneczky.
0.60-m Schmidt + CCD.
595 Farra d'Isonzo. Observers F. Piani, E. Pettarin. Measurer F. Piani.
0.40-m f/4.5 reflector + CCD.
A17 Guidestar Observatory, Weinheim. Observers M. Emmerich, S. Melchert.
0.36-m f/6 Schmidt-Cassegrain + CCD.
Orbital elements:
2007 YZ Earth MOID = 0.0911 AU
Epoch 2007 Oct. 27.0 TT = JDT 2454400.5 MPC
M 234.31015 (2000.0) P Q
n 0.90385677 Peri. 129.72738 -0.72359355 +0.61906912
a 1.0594236 Node 90.78201 -0.68889895 -0.62033608
e 0.4698234 Incl. 17.77376 -0.04278578 -0.48159794
P 1.09 H 20.2 G 0.15 U 9
Residuals in seconds of arc
071217 300 0.4+ 0.2+ 071217 349 0.1+ 0.1- 071217 A17 0.3- 0.4-
071217 300 0.5- 0.1- 071217 349 0.2+ 0.4+ 071217 461 0.1- 0.0
071217 300 0.4+ 0.3+ 071217 349 0.2+ 0.0 071217 A17 0.8+ 0.8-
071217 300 0.0 0.3- 071217 349 0.1- 0.3+ 071217 461 0.1- 0.3+
071217 300 0.3+ 0.1+ 071217 461 0.1- 0.2+ 071217 A17 0.5- 0.2-
071217 300 0.2+ 0.2- 071217 461 0.1- 0.0 071217 595 0.0 0.5+
071217 300 1.0- 0.3- 071217 461 0.0 0.1+ 071217 595 0.1+ 0.0
Ephemeris:
2007 YZ a,e,i = 1.06, 0.47, 18 q = 0.5617
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2007 12 16 07 34.56 +18 49.9 0.239 1.199 151.1 23.4 18.6
2007 12 21 07 28.67 +24 26.6 0.193 1.165 158.4 18.1 17.9
2007 12 26 07 16.17 +33 18.0 0.152 1.130 163.5 14.3 17.2
2007 12 31 06 46.93 +47 22.5 0.119 1.092 155.7 21.7 16.8
2008 01 05 05 10.45 +66 31.4 0.0997 1.054 132.9 43.2 17.0
2008 01 10 00 00.59 +70 59.1 0.101 1.013 104.5 70.0 17.7
2008 01 15 21 45.14 +55 27.7 0.121 0.972 81.0 92.0 18.8
2008 01 20 21 06.66 +42 44.9 0.151 0.929 64.6 106.9 19.9
2008 01 25 20 49.16 +33 51.3 0.187 0.886 53.3 117.0 20.9
Sonia Keys (C) Copyright 2007 MPC M.P.E.C. 2007-Y20
Read MPEC 2007-Y19
Read MPEC 2007-Y21
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