MPEC 2001-H50 : 2001 HJ31
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M.P.E.C. 2001-H50 Issued 2001 Apr. 30, 18:26 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://cfa-www.harvard.edu/iau/mpc.html ISSN 1523-6714
2001 HJ31
Observations:
K01H31J* C2001 04 26.24716 13 05 23.83 -19 57 03.5 18.5 R 699
K01H31J C2001 04 26.26683 13 05 38.04 -19 57 59.3 699
K01H31J C2001 04 26.28633 13 05 51.97 -19 58 52.7 699
K01H31J C2001 04 26.30579 13 06 05.79 -19 59 46.9 699
K01H31J C2001 04 26.38272 13 07 00.70 -20 03 09.0 18.7 R 699
K01H31J C2001 04 26.38429 13 07 01.66 -20 03 12.9 699
K01H31J C2001 04 26.38586 13 07 02.89 -20 03 17.9 699
K01H31J C2001 04 26.38744 13 07 04.04 -20 03 21.6 699
K01H31J WC2001 04 26.91044 13 13 20.91 -20 25 47.4 557
K01H31J WC2001 04 26.91109 13 13 21.47 -20 25 47.3 557
K01H31J WC2001 04 26.91175 13 13 21.80 -20 25 48.8 557
K01H31J WC2001 04 26.91240 13 13 22.31 -20 25 52.3 18.8 V 557
K01H31J tC2001 04 26.95899 13 13 51.63 -20 27 37.5 18.0 R 046
K01H31J tC2001 04 26.96008 13 13 52.20 -20 27 39.0 046
K01H31J C2001 04 27.19121 13 16 26.05 -20 36 07.2 20.0 R 918
K01H31J C2001 04 27.19313 13 16 27.18 -20 36 11.0 19.8 R 918
K01H31J C2001 04 27.19639 13 16 29.05 -20 36 16.9 918
K01H31J C2001 04 27.19961 13 16 30.96 -20 36 25.1 918
K01H31J C2001 04 27.20258 13 16 32.83 -20 36 31.0 918
K01H31J C2001 04 28.27829 13 26 45.44 -21 09 25.6 18.7 V 926
K01H31J C2001 04 28.27940 13 26 45.95 -21 09 27.4 18.8 V 926
K01H31J C2001 04 29.27682 13 34 36.87 -21 32 44.2 19.5 V 926
K01H31J C2001 04 29.27894 13 34 37.75 -21 32 46.5 19.3 V 926
K01H31J C2001 04 30.28999 13 41 19.63 -21 51 07.4 19.1 V 926
K01H31J C2001 04 30.29076 13 41 19.89 -21 51 08.0 19.3 V 926
Observer details:
046 Klet. Observers J. Ticha, M. Tichy, M. Kocer. 0.57-m f/5.2
reflector + CCD.
557 Ondrejov. Observers P. Pravec, L. Sarounova. 0.65-m f/3.6 reflector + CCD.
699 Lowell Observatory-LONEOS. Observer B. A. Skiff. 0.59-m LONEOS Schmidt
+ CCD.
918 Badlands Observatory, Quinn. Observer R. Dyvig. 0.66-m f/4.8 reflector
+ CCD.
926 Tenagra II Observatory. Observer M. Schwartz. Measurer P. R. Holvorcem.
0.5-m f/10 Ritchey-Chretien + CCD.
Orbital elements:
2001 HJ31
Epoch 2001 Apr. 21.0 TT = JDT 2452020.5 Spahr
M 13.44789 (2000.0) P Q
n 0.32955307 Peri. 132.13411 -0.89445400 -0.44679602
a 2.0758014 Node 21.34679 +0.39425657 -0.80702218
e 0.5871607 Incl. 2.84030 +0.21098292 -0.38611983
P 2.99 H 23.8 G 0.15
From 25 observations 2001 Apr. 26-30.
Ephemeris:
2001 HJ31 a,e,i = 2.08, 0.59, 3 q = 0.8570
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2001 04 21 10 48.18 -07 54.2 0.030 1.026 133.8 45.0 18.0
2001 04 26 13 02.11 -19 42.8 0.060 1.063 161.7 17.3 18.7
2001 05 01 13 45.44 -22 00.4 0.097 1.102 166.7 12.1 19.7
2001 05 06 14 05.39 -22 42.2 0.137 1.143 167.3 11.2 20.5
2001 05 11 14 16.93 -22 56.7 0.178 1.184 166.2 11.7 21.1
2001 05 16 14 24.71 -23 00.6 0.222 1.226 164.0 13.2 21.7
2001 05 21 14 30.66 -23 00.0 0.268 1.269 161.1 15.0 22.3
Timothy B. Spahr (C) Copyright 2001 MPC M.P.E.C. 2001-H50
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