MPEC 1998-H21 : 1998 HM3
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M.P.E.C. 1998-H21 Issued 1998 Apr. 23, 15:43 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.
BMARSDEN@CFA.HARVARD.EDU or GWILLIAMS@CFA.HARVARD.EDU
URL http://cfa-www.harvard.edu/iau/mpc.html
1998 HM3
Observations:
J98H03M* C1998 04 21.30419 14 36 24.14 -07 45 17.1 17.6 704
J98H03M C1998 04 21.32450 14 36 21.79 -07 42 44.8 17.9 704
J98H03M C1998 04 21.34459 14 36 19.53 -07 40 15.4 18.4 704
J98H03M C1998 04 21.36498 14 36 17.23 -07 37 41.6 17.9 704
J98H03M C1998 04 21.38544 14 36 15.03 -07 35 07.9 18.3 704
J98H03M C1998 04 21.96183 14 35 16.33 -06 23 15.7 046
J98H03M C1998 04 21.96584 14 35 15.90 -06 22 46.1 18.1 V 046
J98H03M C1998 04 21.96671 14 35 15.80 -06 22 39.4 046
J98H03M C1998 04 21.96756 14 35 15.68 -06 22 32.9 046
J98H03M C1998 04 21.97547 14 35 14.78 -06 21 34.4 557
J98H03M C1998 04 21.97841 14 35 14.50 -06 21 11.6 17.4 V 557
J98H03M C1998 04 21.97935 14 35 14.36 -06 21 04.9 557
J98H03M C1998 04 22.26016 14 34 45.87 -05 45 51.7 17.9 704
J98H03M C1998 04 22.27900 14 34 43.70 -05 43 30.0 17.9 704
J98H03M C1998 04 22.29788 14 34 41.55 -05 41 08.7 704
J98H03M C1998 04 22.31703 14 34 39.36 -05 38 45.0 17.9 704
J98H03M C1998 04 22.33594 14 34 37.24 -05 36 22.9 18.0 704
J98H03M C1998 04 22.83102 14 33 47.06 -04 34 21.4 17.8 V 104
J98H03M C1998 04 22.83316 14 33 46.88 -04 34 05.2 104
J98H03M C1998 04 22.83819 14 33 46.35 -04 33 28.6 104
J98H03M C1998 04 22.84288 14 33 45.86 -04 32 53.3 104
J98H03M C1998 04 22.89741 14 33 39.64 -04 26 05.8 557
J98H03M C1998 04 22.89904 14 33 39.42 -04 25 53.7 17.7 V 557
J98H03M C1998 04 23.01525 14 33 26.41 -04 11 19.2 18.0 V 046
J98H03M C1998 04 23.01610 14 33 26.35 -04 11 13.6 046
J98H03M C1998 04 23.01694 14 33 26.27 -04 11 06.8 046
J98H03M C1998 04 23.04486 14 33 23.02 -04 07 36.6 118
J98H03M C1998 04 23.04610 14 33 22.86 -04 07 27.3 118
J98H03M C1998 04 23.04905 14 33 22.53 -04 07 05.1 118
J98H03M C1998 04 23.11469 14 33 17.42 -03 58 47.7 17.1 R 758
J98H03M C1998 04 23.12672 14 33 16.16 -03 57 10.8 17.0 R 758
J98H03M C1998 04 23.12882 14 33 16.06 -03 56 57.1 17.0 R 758
J98H03M C1998 04 23.13090 14 33 15.93 -03 56 39.5 16.9 R 758
Observer details:
046 Klet. Observers M. Tichy, Z. Moravec. Measurer M. Tichy. 0.57-m f/5.2
reflector + CCD.
104 San Marcello Pistoiese. Observers L. Tesi, A. Boattini. Measurers
A. Boattini, G. Forti, L. Tesi. 0.40-m f/5 reflector + CCD.
118 Modra. Observers L. Kornos, P. Koleny. 0.6-m f/5.5 reflector + CCD.
557 Ondrejov. Observer P. Pravec. 0.65-m f/3.6 reflector + CCD.
704 Lincoln Laboratory ETS, New Mexico. Observers M. Blythe, F. Shelly,
M. Bezpalko. Measurers J. Stuart, H. Viggh. 1.0-m f/2.15 reflector + CCD.
758 BCC Observatory, Cocoa. Observer I. P. Griffin. 0.30-m f/5 Maksutov + CCD.
Orbital elements:
1998 HM3
Epoch 1998 Apr. 17.0 TT = JDT 2450920.5 Williams
M 226.18486 (2000.0) P Q
n 0.71243675 Peri. 138.63161 +0.90739922 +0.26855260
a 1.2415718 Node 210.85511 -0.21668425 +0.95803629
e 0.0642727 Incl. 39.07412 +0.36010359 -0.10022960
P 1.38 H 19.0 G 0.15
From 32 observations 1998 Apr. 21-23.
Ephemeris:
1998 HM3 a,e,i = 1.24, 0.06, 39 q = 1.1618
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
1998 04 17 14 43.53 -16 26.2 0.306 1.299 163.3 12.8 17.7
1998 04 22 14 35.20 -06 18.2 0.295 1.296 169.2 8.4 17.5
1998 04 27 14 26.47 +04 03.3 0.297 1.292 162.1 13.9 17.7
1998 05 02 14 17.90 +13 37.7 0.312 1.289 150.8 22.5 18.1
1998 05 07 14 10.00 +21 44.9 0.336 1.285 140.0 30.3 18.5
1998 05 12 14 03.14 +28 14.0 0.368 1.281 130.6 36.8 18.9
1998 05 17 13 57.54 +33 13.8 0.405 1.276 122.7 41.8 19.2
1998 05 22 13 53.31 +37 00.0 0.445 1.272 116.0 45.7 19.5
1998 05 27 13 50.51 +39 48.4 0.487 1.267 110.3 48.6 19.8
1998 06 01 13 49.12 +41 52.4 0.529 1.263 105.5 50.7 20.0
1998 06 06 13 49.06 +43 22.8 0.570 1.258 101.4 52.3 20.2
1998 06 11 13 50.21 +44 27.5 0.610 1.253 97.7 53.4 20.4
1998 06 16 13 52.44 +45 12.2 0.649 1.248 94.6 54.2 20.5
1998 06 26 13 59.81 +45 57.1 0.719 1.238 89.3 55.2 20.8
1998 07 06 14 10.55 +46 00.3 0.779 1.228 85.2 55.6 20.9
1998 07 16 14 24.12 +45 34.7 0.827 1.219 82.1 55.7 21.0
1998 07 26 14 40.23 +44 45.9 0.861 1.209 79.7 55.8 21.1
1998 08 05 14 58.80 +43 37.1 0.882 1.200 78.2 55.8 21.1
1998 08 15 15 19.79 +42 08.7 0.889 1.192 77.3 56.0 21.2
1998 08 25 15 43.34 +40 18.2 0.883 1.184 77.1 56.3 21.1
1998 09 04 16 09.67 +38 02.0 0.867 1.177 77.4 56.7 21.1
1998 09 14 16 38.97 +35 14.3 0.842 1.172 78.2 57.2 21.0
1998 09 24 17 11.45 +31 47.6 0.812 1.167 79.3 57.6 21.0
1998 10 04 17 47.20 +27 35.3 0.781 1.164 80.6 58.0 20.9
1998 10 14 18 25.97 +22 34.0 0.756 1.162 81.8 58.2 20.8
1998 10 24 19 07.26 +16 48.5 0.741 1.162 82.6 58.1 20.8
1998 11 03 19 50.17 +10 37.4 0.742 1.163 82.9 57.8 20.8
1998 11 13 20 33.48 +04 29.5 0.762 1.165 82.3 57.3 20.8
1998 11 23 21 16.10 -01 04.5 0.801 1.169 80.9 56.5 20.9
1998 12 03 21 57.11 -05 43.0 0.856 1.174 78.8 55.5 21.0
1998 12 13 22 35.96 -09 18.5 0.923 1.180 76.3 54.2 21.2
1998 12 23 23 12.56 -11 53.7 0.998 1.187 73.6 52.6 21.3
1999 01 02 23 47.03 -13 37.0 1.076 1.195 70.8 51.0 21.4
1999 01 12 00 19.66 -14 37.8 1.153 1.204 68.1 49.3 21.6
1999 01 22 00 50.86 -15 04.8 1.226 1.213 65.5 47.6 21.7
1999 02 01 01 21.01 -15 05.3 1.294 1.223 63.2 46.0 21.7
1999 02 11 01 50.47 -14 45.0 1.354 1.233 61.2 44.6 21.8
Gareth V. Williams (C) Copyright 1998 MPC M.P.E.C. 1998-H21
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