MPEC 2001-Y48: 2001 YK4
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M.P.E.C. 2001-Y48 Issued 2001 Dec. 27, 07:02 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://cfa-www.harvard.edu/iau/mpc.html ISSN 1523-6714
2001 YK4
Observations:
K01Y04K* C2001 12 23.36771 09 45 16.41 +00 45 18.9 18.1 R 699
K01Y04K C2001 12 23.39194 09 45 10.15 +00 46 04.0 699
K01Y04K C2001 12 23.41617 09 45 03.83 +00 46 49.2 699
K01Y04K C2001 12 23.44047 09 44 57.55 +00 47 34.3 699
K01Y04K C2001 12 24.04102 09 42 27.23 +01 06 05.5 17.5 R 046
K01Y04K C2001 12 24.04181 09 42 26.91 +01 06 06.2 046
K01Y04K C2001 12 24.04444 09 42 26.19 +01 06 11.1 046
K01Y04K C2001 12 24.04527 09 42 26.00 +01 06 12.7 046
K01Y04K C2001 12 24.12034 09 42 06.72 +01 08 32.2 118
K01Y04K C2001 12 24.12133 09 42 06.49 +01 08 33.5 118
K01Y04K C2001 12 24.12326 09 42 06.01 +01 08 37.9 118
K01Y04K C2001 12 24.12436 09 42 05.72 +01 08 39.3 17.2 R 118
K01Y04K C2001 12 24.43674 09 40 47.75 +01 18 18.1 918
K01Y04K C2001 12 24.43848 09 40 47.31 +01 18 22.1 918
K01Y04K C2001 12 24.44163 09 40 46.37 +01 18 29.5 18.1 R 649
K01Y04K C2001 12 24.44218 09 40 46.43 +01 18 28.1 19.8 R 918
K01Y04K C2001 12 24.44324 09 40 45.92 +01 18 32.7 17.9 R 649
K01Y04K C2001 12 24.44649 09 40 45.09 +01 18 38.8 17.8 R 649
K01Y04K C2001 12 25.49950 09 36 24.49 +01 51 01.2 19.4 608
K01Y04K C2001 12 25.50967 09 36 21.88 +01 51 20.3 19.3 608
K01Y04K C2001 12 25.52028 09 36 19.18 +01 51 39.4 19.5 608
K01Y04K C2001 12 26.22262 09 33 25.27 +02 12 50.5 17.9 R 966
K01Y04K C2001 12 26.22833 09 33 23.85 +02 13 00.8 17.9 R 966
K01Y04K C2001 12 26.23470 09 33 22.25 +02 13 12.8 18.4 R 966
Observer details:
046 Klet. Observers M. Kocer, M. Kocherova. 0.57-m f/5.2 reflector + CCD.
118 Modra. Observers A. Galad, L. Kornos. 0.6-m f/5.5 reflector + CCD.
608 Haleakala-NEAT/MSSS. Observers E. F. Helin, S. Pravdo, K. Lawrence,
P. Kervin, R. Maeda, J. Africano, M. Hicks. 1.2-m reflector + CCD.
649 Powell Observatory, Louisburg. Observers K. Smalley, R. Fredrick.
0.75-m Newtonian + CCD.
699 Lowell Observatory-LONEOS. Observer M. E. Van Ness. 0.59-m LONEOS
Schmidt + CCD.
918 Badlands Observatory, Quinn. Observer R. Dyvig. 0.66-m f/4.8 reflector
+ CCD.
966 Church Stretton. Observer S. P. Laurie. 0.35-m f/11 Schmidt-Cassegrain
+ CCD.
Orbital elements:
2001 YK4
Epoch 2001 Dec. 17.0 TT = JDT 2452260.5 MPC
M 12.36550 (2000.0) P Q
n 0.22355140 Peri. 207.99531 +0.99492150 -0.09559524
a 2.6887543 Node 157.42445 +0.10064054 +0.93968358
e 0.7803955 Incl. 4.70777 +0.00164273 +0.32841485
P 4.41 H 18.5 G 0.15
From 24 observations 2001 Dec. 23-26.
Ephemeris:
2001 YK4 a,e,i = 2.69, 0.78, 5 q = 0.5905
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2001 12 27 09 30.26 +02 36.6 0.395 1.275 130.2 36.1 18.5
2002 01 06 08 52.10 +07 17.2 0.459 1.401 150.5 20.2 18.5
2002 01 16 08 20.58 +11 05.9 0.547 1.523 167.7 7.9 18.7
2002 01 26 07 57.36 +13 56.8 0.662 1.641 170.2 5.9 19.1
2002 02 05 07 42.26 +15 57.6 0.802 1.755 158.0 12.1 20.0
2002 02 15 07 34.00 +17 20.8 0.963 1.866 146.1 17.2 20.7
2002 02 25 07 31.18 +18 16.6 1.142 1.972 135.3 20.7 21.3
2002 03 07 07 32.47 +18 52.3 1.335 2.076 125.6 22.9 21.8
Brian G. Marsden (C) Copyright 2001 MPC M.P.E.C. 2001-Y48
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