MPEC 2001-H48: 2001 HG31
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M.P.E.C. 2001-H48 Issued 2001 Apr. 30, 17:26 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 HG31
Observations:
K01H31G C2001 04 24.33203 14 34 58.45 -15 24 34.7 18.9 V 291
K01H31G C2001 04 24.35430 14 34 56.70 -15 24 30.3 18.9 V 291
K01H31G C2001 04 24.37597 14 34 54.99 -15 24 26.1 18.9 V 291
K01H31G* C2001 04 24.46955 14 34 47.84 -15 24 05.3 19.5 608
K01H31G C2001 04 24.48017 14 34 47.00 -15 24 03.3 19.4 608
K01H31G C2001 04 24.49122 14 34 46.12 -15 24 01.3 19.5 608
K01H31G C2001 04 24.88833 14 34 15.94 -15 22 46.5 17.7 R 046
K01H31G C2001 04 24.89111 14 34 15.75 -15 22 45.8 046
K01H31G C2001 04 24.89451 14 34 15.51 -15 22 45.8 046
K01H31G C2001 04 24.89591 14 34 15.36 -15 22 44.6 17.6 R 046
K01H31G C2001 04 24.96984 14 34 09.57 -15 22 30.8 19.3 V 557
K01H31G C2001 04 24.97521 14 34 09.15 -15 22 29.7 557
K01H31G C2001 04 24.98109 14 34 08.67 -15 22 28.7 557
K01H31G C2001 04 25.25791 14 33 47.49 -15 21 33.3 918
K01H31G C2001 04 25.26491 14 33 47.08 -15 21 31.9 918
K01H31G C2001 04 25.26932 14 33 46.74 -15 21 31.2 19.2 R 918
K01H31G C2001 04 26.28105 14 32 29.52 -15 18 09.8 18.4 R 649
K01H31G C2001 04 26.28888 14 32 28.88 -15 18 07.7 18.1 R 649
K01H31G C2001 04 26.29855 14 32 28.11 -15 18 05.8 18.1 R 649
K01H31G C2001 04 26.43010 14 32 18.47 -15 17 32.2 18.7 422
K01H31G C2001 04 26.43083 14 32 18.41 -15 17 32.2 18.9 422
K01H31G FC2001 04 26.43485 14 32 18.14 -15 17 31.0 19.3 422
K01H31G C2001 04 26.91365 14 31 41.55 -15 16 04.4 118
K01H31G C2001 04 26.91485 14 31 41.44 -15 16 03.5 118
K01H31G C2001 04 26.91831 14 31 41.15 -15 16 03.3 17.7 R 118
K01H31G C2001 04 26.97894 14 31 36.45 -15 15 50.8 17.8 R 046
K01H31G C2001 04 26.98054 14 31 36.31 -15 15 49.8 046
K01H31G C2001 04 26.98189 14 31 36.22 -15 15 49.6 046
K01H31G C2001 04 26.98323 14 31 36.14 -15 15 49.1 046
K01H31G C2001 04 26.98458 14 31 35.98 -15 15 49.4 046
K01H31G C2001 04 26.98596 14 31 35.94 -15 15 49.1 17.9 R 046
K01H31G C2001 04 27.25291 14 31 15.83 -15 14 54.0 18.5 704
K01H31G C2001 04 27.26624 14 31 14.82 -15 14 51.0 19.0 704
K01H31G C2001 04 27.27937 14 31 13.72 -15 14 50.1 19.0 704
K01H31G C2001 04 27.29236 14 31 12.79 -15 14 46.9 19.0 704
K01H31G C2001 04 27.34801 14 31 08.45 -15 14 35.5 19.1 V 691
K01H31G C2001 04 27.36945 14 31 06.78 -15 14 31.2 19.2 V 691
K01H31G C2001 04 27.39104 14 31 05.08 -15 14 26.8 18.8 V 691
K01H31G C2001 04 28.28427 14 29 57.90 -15 11 26.8 651
K01H31G C2001 04 28.28968 14 29 57.46 -15 11 26.6 18.9 R 651
K01H31G C2001 04 28.29486 14 29 57.30 -15 11 23.5 651
K01H31G C2001 04 28.31095 14 29 55.92 -15 11 21.2 18.2 R 926
K01H31G C2001 04 28.31825 14 29 55.36 -15 11 20.1 18.4 R 926
K01H31G C2001 04 28.32550 14 29 54.80 -15 11 18.1 18.4 R 926
K01H31G C2001 04 29.31685 14 28 40.56 -15 07 57.9 18.1 V 926
K01H31G 4C2001 04 29.32396 14 28 39.99 -15 07 59.1 673
K01H31G C2001 04 29.32402 14 28 40.01 -15 07 56.9 17.9 V 926
K01H31G 4C2001 04 29.32764 14 28 39.66 -15 07 58.3 673
K01H31G C2001 04 29.33054 14 28 39.51 -15 07 55.0 17.8 V 926
K01H31G 4C2001 04 29.33159 14 28 39.37 -15 07 57.4 673
K01H31G C2001 04 29.97674 14 27 51.49 -15 05 46.1 118
K01H31G C2001 04 29.97994 14 27 51.21 -15 05 45.6 118
K01H31G C2001 04 29.98680 14 27 50.68 -15 05 44.0 118
K01H31G C2001 04 30.29848 14 27 27.49 -15 04 40.7 18.5 R 649
K01H31G C2001 04 30.30141 14 27 27.46 -15 04 38.8 18.0 V 926
K01H31G C2001 04 30.30675 14 27 27.02 -15 04 37.3 18.1 V 926
K01H31G C2001 04 30.31053 14 27 26.76 -15 04 36.6 17.8 R 649
K01H31G C2001 04 30.31149 14 27 26.69 -15 04 36.6 17.9 V 926
K01H31G C2001 04 30.33535 14 27 24.66 -15 04 34.2 17.8 R 649
Observer details:
046 Klet. Observers J. Ticha, M. Tichy, M. Kocer. 0.57-m f/5.2
reflector + CCD.
118 Modra. Observers A. Galad, J. Toth. 0.6-m f/5.5 reflector + CCD.
291 LPL/Spacewatch II. Observers T. Gehrels, J. V. Scotti, J. L. Montani,
J. A. Larsen, R. S. McMillan, A. E. Gleason, M. T. Read, A. F. Tubbiolo.
1.8-m Spacewatch telescope.
422 Loomberah. Observer G. J. Garradd. 0.45-m f/5.4 reflector + CCD.
557 Ondrejov. Observers P. Pravec, P. Kusnirak. 0.65-m f/3.6 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. Observer D. Trentman. Measurer K. Smalley.
0.75-m Newtonian + CCD.
651 Grasslands Observatory, Tucson. Observer J. E. McGaha. 0.62-m f/5.1
reflector + CCD.
673 Table Mountain Observatory, Wrightwood. Observers D. Esqueda, A. Esqueda,
T. Ha. Measurer M. Hicks. 0.6-m reflector + CCD.
691 Steward Observatory, Kitt Peak. Observer J. L. Montani. 0.9-m
Spacewatch telescope.
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.
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 HG31
Epoch 2001 Apr. 21.0 TT = JDT 2452020.5 Spahr
M 50.52268 (2000.0) P Q
n 0.23983930 Peri. 68.69617 -0.26799106 -0.96144478
a 2.5656012 Node 37.02417 +0.84161154 -0.26478853
e 0.5158169 Incl. 5.87951 +0.46890384 -0.07423595
P 4.11 H 16.0 G 0.15
From 59 observations 2001 Apr. 24-30.
Ephemeris:
2001 HG31 a,e,i = 2.57, 0.52, 6 q = 1.2422
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2001 04 21 14 39.24 -15 35.1 1.333 2.326 168.7 4.9 18.9
2001 05 01 14 26.60 -15 02.2 1.379 2.386 178.4 0.7 18.7
2001 05 11 14 15.20 -14 29.8 1.452 2.444 166.0 5.7 19.2
2001 05 21 14 06.05 -14 03.3 1.552 2.502 154.2 10.2 19.6
2001 05 31 13 59.72 -13 46.6 1.674 2.558 143.0 13.8 19.9
2001 06 10 13 56.33 -13 41.6 1.816 2.613 132.6 16.6 20.3
2001 06 20 13 55.69 -13 48.4 1.973 2.667 123.0 18.6 20.6
2001 06 30 13 57.51 -14 06.1 2.143 2.719 114.0 20.0 20.8
2001 07 10 14 01.44 -14 33.2 2.320 2.770 105.5 20.7 21.1
2001 07 20 14 07.16 -15 08.0 2.502 2.821 97.5 20.9 21.3
2001 07 30 14 14.39 -15 49.0 2.688 2.869 89.8 20.7 21.5
2001 08 09 14 22.89 -16 34.5 2.873 2.917 82.4 20.2 21.6
2001 08 19 14 32.44 -17 23.2 3.055 2.963 75.2 19.3 21.8
2001 08 29 14 42.91 -18 14.0 3.233 3.008 68.2 18.2 21.9
2001 09 08 14 54.13 -19 05.6 3.405 3.052 61.3 16.8 22.0
Timothy B. Spahr (C) Copyright 2001 MPC M.P.E.C. 2001-H48
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