MPEC 2001-H52 : 2001 HL31
The following Minor Planet Electronic Circular may be linked-to from your own Web pages, but must not otherwise be redistributed electronically.A form allowing access to any MPEC is at the bottom of this page.
Read MPEC 2001-H51
Read MPEC 2001-J01
M.P.E.C. 2001-H52 Issued 2001 Apr. 30, 19:00 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 HL31
Observations:
K01H31L* C2001 04 29.31850 15 33 06.49 -24 22 15.7 17.4 704
K01H31L C2001 04 29.33177 15 33 06.00 -24 23 25.6 17.8 704
K01H31L C2001 04 29.34572 15 33 05.44 -24 24 38.3 17.3 704
K01H31L C2001 04 29.35933 15 33 04.88 -24 25 49.8 17.9 704
K01H31L C2001 04 29.37260 15 33 04.40 -24 27 00.6 17.9 704
K01H31L C2001 04 29.95431 15 32 54.44 -25 20 41.8 620
K01H31L C2001 04 29.95873 15 32 53.42 -25 21 11.6 118
K01H31L C2001 04 29.95977 15 32 53.47 -25 21 17.5 118
K01H31L C2001 04 29.96165 15 32 53.42 -25 21 28.7 118
K01H31L C2001 04 29.96339 15 32 53.27 -25 21 38.1 118
K01H31L C2001 04 29.96889 15 32 53.85 -25 22 05.3 620
K01H31L C2001 04 29.97117 15 32 53.19 -25 22 24.5 16.5 R 046
K01H31L C2001 04 29.97189 15 32 53.13 -25 22 28.4 046
K01H31L C2001 04 29.97257 15 32 53.10 -25 22 32.4 046
K01H31L C2001 04 29.97347 15 32 53.10 -25 22 37.9 046
K01H31L C2001 04 29.97442 15 32 53.12 -25 22 44.0 046
K01H31L C2001 04 29.97516 15 32 53.05 -25 22 47.8 16.3 R 046
K01H31L C2001 04 29.97603 15 32 53.00 -25 22 52.9 046
K01H31L C2001 04 29.97801 15 32 52.88 -25 23 04.0 046
K01H31L C2001 04 29.99531 15 32 52.17 -25 24 46.1 557
K01H31L C2001 04 29.99655 15 32 52.21 -25 24 53.8 557
K01H31L C2001 04 30.35892 15 32 42.23 -26 01 17.2 15.7 R 649
K01H31L C2001 04 30.35918 15 32 43.06 -26 01 16.1 16.5 V 926
K01H31L C2001 04 30.35977 15 32 43.08 -26 01 20.4 16.2 V 926
K01H31L C2001 04 30.36098 15 32 43.02 -26 01 28.4 16.7 V 926
K01H31L C2001 04 30.36309 15 32 42.03 -26 01 43.1 15.7 R 649
K01H31L C2001 04 30.37248 15 32 41.63 -26 02 41.1 15.6 R 649
K01H31L C2001 04 30.37677 15 32 41.41 -26 03 07.8 15.7 R 649
Observer details:
046 Klet. Observers J. Ticha, M. Tichy. 0.57-m f/5.2 reflector + CCD.
118 Modra. Observers A. Galad, J. Toth. 0.6-m f/5.5 reflector + CCD.
557 Ondrejov. Observer P. Pravec. 0.65-m f/3.6 reflector + CCD.
620 Observatorio Astronomico de Mallorca. Observers S. Sanchez, J. Rodriguez.
0.30-m f/3.3 Schmidt-Cassegrain + CCD.
649 Powell Observatory, Louisburg. Observer K. Smalley. 0.75-m Newtonian
+ CCD.
704 Lincoln Laboratory ETS, New Mexico. Observers M. Blythe, F. Shelly,
M. Bezpalko, R. Huber, L. Manguso, S. Adams. Measurers J. Stuart,
R. Sayer, J. B. Evans, H. Viggh. 1.0-m f/2.15 reflector + CCD.
926 Tenagra II Observatory. Observer M. Schwartz. Measurer P. R. Holvorcem.
0.5-m f/10 Ritchey-Chretien + CCD.
Orbital elements:
2001 HL31
Epoch 2001 Apr. 21.0 TT = JDT 2452020.5 Spahr
M 343.67007 (2000.0) P Q
n 0.24843470 Peri. 286.82689 +0.80613876 +0.57507329
a 2.5060778 Node 38.38900 -0.42037875 +0.72237496
e 0.7859038 Incl. 12.97170 -0.41643967 +0.38401188
P 3.97 H 19.2 G 0.15
From 28 observations 2001 Apr. 29-30.
Ephemeris:
2001 HL31 a,e,i = 2.51, 0.79, 13 q = 0.5365
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2001 04 21 15 33.42 -17 12.3 0.299 1.284 155.7 18.8 18.1
2001 04 22 15 33.56 -17 44.2 0.284 1.271 156.5 18.4 17.9
2001 04 23 15 33.65 -18 19.7 0.268 1.257 157.3 17.9 17.8
2001 04 24 15 33.71 -18 59.4 0.253 1.244 158.2 17.5 17.6
2001 04 25 15 33.72 -19 43.9 0.238 1.231 159.0 17.1 17.4
2001 04 26 15 33.68 -20 34.4 0.223 1.218 159.7 16.7 17.3
2001 04 27 15 33.59 -21 31.8 0.208 1.204 160.4 16.3 17.1
2001 04 28 15 33.43 -22 37.9 0.193 1.191 161.0 16.0 16.9
2001 04 29 15 33.19 -23 54.5 0.179 1.178 161.4 15.8 16.7
2001 04 30 15 32.87 -25 24.3 0.164 1.164 161.7 15.8 16.5
2001 05 01 15 32.42 -27 10.9 0.150 1.151 161.6 16.0 16.3
2001 05 02 15 31.82 -29 19.2 0.136 1.137 161.1 16.7 16.0
2001 05 03 15 31.01 -31 55.9 0.122 1.124 160.1 17.8 15.8
2001 05 04 15 29.89 -35 11.0 0.109 1.110 158.2 19.7 15.6
2001 05 05 15 28.29 -39 18.4 0.096 1.097 155.3 22.6 15.4
2001 05 06 15 25.86 -44 38.6 0.084 1.083 151.0 26.9 15.2
2001 05 07 15 21.82 -51 40.3 0.073 1.069 144.7 33.0 15.0
2001 05 08 15 13.91 -60 59.7 0.063 1.056 136.0 41.6 14.9
2001 05 09 14 51.8 -73 05.6 0.056 1.042 124.2 53.3 15.0
2001 05 10 11 06 -86 03.7 0.051 1.028 109.5 67.8 15.2
2001 05 11 04 34.4 -74 37.3 0.051 1.014 93.4 83.7 15.7
2001 05 12 04 05.62 -59 34.7 0.055 1.000 78.3 98.6 16.5
2001 05 13 03 56.38 -47 06.1 0.062 0.987 66.0 110.7 17.4
2001 05 14 03 51.84 -37 29.9 0.072 0.973 56.5 120.0 18.3
2001 05 15 03 49.14 -30 15.3 0.083 0.959 49.4 126.9 19.1
2001 05 16 03 47.34 -24 45.0 0.095 0.945 44.0 132.0 19.9
2001 05 17 03 46.06 -20 29.3 0.107 0.931 39.9 135.9 20.5
2001 05 18 03 45.10 -17 07.0 0.120 0.918 36.7 138.8 21.1
2001 05 19 03 44.35 -14 23.6 0.134 0.904 34.1 141.1 21.6
2001 05 20 03 43.76 -12 08.9 0.148 0.890 32.1 142.8 22.0
2001 05 21 03 43.28 -10 16.0 0.162 0.876 30.5 144.1 22.4
Timothy B. Spahr (C) Copyright 2001 MPC M.P.E.C. 2001-H52
Read MPEC 2001-H51
Read MPEC 2001-J01
Enter an MPEC number in one of the following forms:
- 1997-B01 (the full form)
- J97B01 (the packed version of the full form)
- B01 (the abbreviated form)