MPEC 2007-Y23 : 2007 YF1
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M.P.E.C. 2007-Y23 Issued 2007 Dec. 18, 20:02 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 YF1
Observations:
K07Y01F* C2007 12 16.42464 08 15 58.21 +02 17 42.5 20.0 r EY023699
K07Y01F C2007 12 16.44023 08 15 57.46 +02 18 00.2 19.8 r EY023699
K07Y01F C2007 12 16.45580 08 15 56.78 +02 18 20.0 19.3 r EY023699
K07Y01F C2007 12 16.47139 08 15 56.01 +02 18 38.2 19.2 r EY023699
K07Y01F C2007 12 17.44561 08 15 14.93 +02 38 21.7 19.7 R EY023734
K07Y01F C2007 12 17.44921 08 15 14.76 +02 38 26.5 19.5 R EY023734
K07Y01F C2007 12 17.45281 08 15 14.55 +02 38 31.2 19.5 R EY023734
K07Y01F C2007 12 17.45641 08 15 14.40 +02 38 35.5 19.5 R EY023734
K07Y01F C2007 12 17.46001 08 15 14.21 +02 38 40.5 19.6 R EY023734
K07Y01F C2007 12 17.47562 08 15 13.63 +02 39 00.0 19.5 V EY023G96
K07Y01F C2007 12 17.48927 08 15 12.97 +02 39 17.0 19.3 V EY023G96
K07Y01F C2007 12 17.49602 08 15 12.64 +02 39 25.2 19.3 V EY023G96
K07Y01F C2007 12 18.27314 08 14 38.88 +02 55 28.2 19.4 R EY023651
K07Y01F C2007 12 18.27458 08 14 38.79 +02 55 30.1 19.3 R EY023651
K07Y01F C2007 12 18.27601 08 14 38.75 +02 55 31.4 19.2 R EY023651
K07Y01F IC2007 12 18.32264 08 14 36.42 +02 56 31.9 EY023711
K07Y01F C2007 12 18.32876 08 14 36.03 +02 56 38.7 EY023711
K07Y01F C2007 12 18.33487 08 14 35.76 +02 56 45.9 19.1 R EY023711
Observer details:
651 Grasslands Observatory, Tucson. Observer J. E. McGaha. 0.62-m f/5.1
Newtonian reflector + CCD.
699 Lowell Observatory-LONEOS. Observer B. W. Koehn. 0.59-m LONEOS Schmidt
+ CCD.
711 McDonald Observatory. Observer J. G. Ries. 0.76-m reflector + CCD
+ prime-focus corrector.
734 Farpoint Observatory. Observer G. Hug. 0.7-m reflector + CCD.
G96 Mt. Lemmon Survey. Observer E. 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 YF1 Earth MOID = 0.3611 AU
Epoch 2007 Oct. 27.0 TT = JDT 2454400.5 MPC
M 8.94804 (2000.0) P Q
n 0.24491064 Peri. 265.52229 +0.82643853 -0.51118045
a 2.5300607 Node 125.03952 +0.55852582 +0.79723230
e 0.5299180 Incl. 16.75242 -0.07105106 +0.32111557
P 4.02 H 18.5 G 0.15 U 9
Residuals in seconds of arc
071216 699 0.6+ 0.4+ 071217 734 0.3- 0.2+ 071218 651 0.1- 0.3-
071216 699 0.1- 0.6- 071217 734 0.0 0.1+ 071218 651 0.4- 0.2-
071216 699 0.3+ 0.5+ 071217 734 0.3- 0.7+ 071218 651 0.1+ 0.7-
071216 699 0.7- 0.1- 071217 G96 0.0 0.3- 071218 711 0.8+ 1.2+
071217 734 0.3+ 0.5- 071217 G96 0.1- 0.1- 071218 711 0.4- 0.3+
071217 734 0.3+ 0.1- 071217 G96 0.2- 0.1- 071218 711 0.2+ 0.1-
Ephemeris:
2007 YF1 a,e,i = 2.53, 0.53, 17 q = 1.1893
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2007 12 16 08 16.25 +02 09.3 0.657 1.521 134.9 27.3 19.7
2007 12 26 08 07.55 +05 47.3 0.663 1.585 147.9 19.2 19.6
2008 01 05 07 55.77 +09 50.9 0.688 1.651 161.5 10.9 19.5
2008 01 15 07 43.19 +13 54.1 0.737 1.717 172.6 4.2 19.4
2008 01 25 07 32.23 +17 31.7 0.812 1.785 167.0 7.1 19.8
2008 02 04 07 24.52 +20 29.9 0.911 1.852 155.3 12.9 20.4
2008 02 14 07 20.83 +22 46.5 1.031 1.920 144.0 17.6 20.9
2008 02 24 07 21.16 +24 25.8 1.170 1.987 133.7 21.1 21.4
2008 03 05 07 25.01 +25 34.3 1.323 2.053 124.4 23.5 21.8
Sonia Keys (C) Copyright 2007 MPC M.P.E.C. 2007-Y23
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