MPEC 2004-P48 : 2004 PY42
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M.P.E.C. 2004-P48 Issued 2004 Aug. 12, 18:11 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.
Supported in part by the Brinson Foundation
Prepared using the Tamkin Foundation Computer Network
MPC@CFA.HARVARD.EDU
URL http://cfa-www.harvard.edu/iau/mpc.html ISSN 1523-6714
2004 PY42
Observations:
K04P42Y* C2004 08 10.87443 20 46 08.00 -12 00 02.7 19.8 R EP048599
K04P42Y C2004 08 10.88578 20 46 07.84 -12 00 03.0 19.7 R EP048599
K04P42Y C2004 08 10.89712 20 46 07.65 -12 00 03.3 20.1 R EP048599
K04P42Y C2004 08 10.90848 20 46 07.49 -12 00 04.1 19.6 R EP048599
K04P42Y C2004 08 10.98050 20 46 06.44 -12 00 06.0 20.2 R EP048599
K04P42Y C2004 08 10.98311 20 46 06.39 -12 00 05.9 20.2 R EP048599
K04P42Y C2004 08 11.88097 20 45 53.30 -12 00 34.5 20.0 R EP048176
K04P42Y C2004 08 11.88804 20 45 53.28 -12 00 33.5 20.0 R EP048599
K04P42Y C2004 08 11.89753 20 45 53.12 -12 00 34.3 19.6 R EP048599
K04P42Y C2004 08 11.90700 20 45 53.01 -12 00 34.1 19.6 R EP048599
K04P42Y C2004 08 11.91347 20 45 52.95 -12 00 34.5 19.7 R EP048176
K04P42Y C2004 08 11.91645 20 45 52.89 -12 00 34.8 20.4 R EP048599
K04P42Y C2004 08 11.92187 20 45 52.80 -12 00 35.1 20 R EP048621
K04P42Y C2004 08 11.94138 20 45 52.48 -12 00 35.7 EP048621
K04P42Y C2004 08 11.94656 20 45 52.42 -12 00 36.6 EP048246
K04P42Y C2004 08 11.95022 20 45 52.38 -12 00 36.1 EP048246
K04P42Y C2004 08 11.96878 20 45 52.11 -12 00 35.9 EP048246
K04P42Y C2004 08 11.97100 20 45 52.06 -12 00 36.5 EP048246
K04P42Y 5C2004 08 12.33763 20 45 46.73 -12 00 47.5 20.3 R EP048673
K04P42Y 5C2004 08 12.34109 20 45 46.69 -12 00 47.6 EP048673
K04P42Y 5C2004 08 12.35174 20 45 46.56 -12 00 47.9 EP048673
K04P42Y 5C2004 08 12.35741 20 45 46.46 -12 00 48.2 EP048673
Observer details:
176 Observatori Astronomic de Consell. Observers A. Lopez, R. Pacheco,
J. Forteza. 0.41-m f/4 reflector + CCD.
246 Klet Observatory-KLENOT. Observers J. Ticha, M. Tichy, M. Kocer. 1.06-m
KLENOT Telescope + CCD.
599 Campo Imperatore-CINEOS. Observers A. Boattini, F. De Luise, A. Di Paola.
0.60-m f/3 Schmidt + CCD.
621 Bergisch Gladbach. Observer W. Bickel. 0.60-m f/5.2 reflector + CCD.
673 Table Mountain Observatory, Wrightwood. Observer M. Vale. Measurer
J. Young. 0.6-m reflector + CCD.
Orbital elements:
2004 PY42
Epoch 2004 Aug. 3.0 TT = JDT 2453220.5 MPC
M 19.49774 (2000.0) P Q
n 0.01516935 Peri. 341.47372 +0.14289086 +0.94481498
a 16.1618630 Node 295.82928 -0.86163863 -0.02780692
e 0.2744302 Incl. 19.11833 -0.48699187 +0.32642217
P 65.0 H 9.5 G 0.15
From 22 observations 2004 Aug. 10-12. E-assumed.
Ephemeris:
2004 PY42 a,e,i = 16.16, 0.27, 19 q = 11.727
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2004 08 13 20 45.62 -12 01.1 11.206 12.200 168.5 0.9 20.3
2004 08 23 20 43.30 -12 06.4 11.257 12.207 159.0 1.7 20.4
2004 09 02 20 41.23 -12 11.5 11.337 12.214 149.2 2.4 20.5
2004 09 12 20 39.49 -12 16.2 11.442 12.221 139.2 3.1 20.5
2004 09 22 20 38.16 -12 19.9 11.570 12.228 129.2 3.6 20.6
2004 10 02 20 37.32 -12 22.4 11.716 12.236 119.2 4.1 20.7
2004 10 12 20 36.99 -12 23.3 11.876 12.243 109.4 4.4 20.7
2004 10 22 20 37.21 -12 22.5 12.046 12.250 99.5 4.6 20.7
2004 11 01 20 37.96 -12 19.8 12.220 12.257 89.8 4.6 20.8
2004 11 11 20 39.25 -12 15.0 12.395 12.265 80.2 4.6 20.8
2004 11 21 20 41.03 -12 08.0 12.565 12.272 70.6 4.4 20.8
2004 12 01 20 43.26 -11 59.0 12.726 12.280 61.1 4.0 20.8
On the basis of the currently-available observational data, the orbit
of 2004 PY42 is essentially indeterminate. Near-parabolic solutions are
not excluded.
Timothy B. Spahr (C) Copyright 2004 MPC M.P.E.C. 2004-P48
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