MPEC 1998-F06: 1998 EC3
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M.P.E.C. 1998-F06 Issued 1998 Mar. 19, 15:56 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 EC3
Revision to MPEC 1998-E08
Observations:
J98E03C FC1998 03 08.48016 10 17 41.13 +21 44 33.3 18.9 R 422
J98E03C C1998 03 08.60218 10 17 30.00 +21 46 28.4 327
J98E03C C1998 03 08.61191 10 17 29.11 +21 46 38.5 327
J98E03C C1998 03 08.62162 10 17 28.18 +21 46 48.6 17.5 327
J98E03C C1998 03 15.47246 10 07 24.02 +23 39 50.0 411
J98E03C C1998 03 15.47756 10 07 23.54 +23 39 54.6 411
J98E03C C1998 03 15.48267 10 07 23.11 +23 39 59.0 411
J98E03C C1998 03 16.48146 10 05 57.84 +23 55 18.6 411
J98E03C C1998 03 16.48655 10 05 57.41 +23 55 23.9 411
J98E03C C1998 03 17.35546 10 04 43.60 +24 08 24.4 658
J98E03C C1998 03 17.35868 10 04 43.35 +24 08 27.1 658
J98E03C C1998 03 17.36300 10 04 42.98 +24 08 31.2 658
J98E03C C1998 03 17.47966 10 04 33.95 +24 10 17.8 18.0 V 402
J98E03C C1998 03 17.48383 10 04 33.61 +24 10 21.3 402
J98E03C C1998 03 17.48583 10 04 33.41 +24 10 23.4 402
J98E03C C1998 03 17.51125 10 04 31.15 +24 10 46.8 355
J98E03C C1998 03 17.51610 10 04 30.69 +24 10 51.5 355
J98E03C C1998 03 17.52399 10 04 30.00 +24 10 58.6 17.6 V 355
J98E03C C1998 03 18.48093 10 03 11.00 +24 24 58.0 411
J98E03C C1998 03 18.48948 10 03 10.26 +24 25 05.2 411
Observer details:
327 Peking Observatory, Xinglong Station. Observers Z. Y. Zheng, X. Zhou,
B. Zhao, R. Chen, Y. J. Chen, X. M. Teng, X. Y. Li. Measurers X. Y. Li,
X. M. Teng, Y. J. Chen. 0.6-m Schmidt + CCD.
355 Hadano. Observer A. Asami. 0.2-m f/4.0 reflector + CCD.
402 Dynic Astronomical Observatory. Observer A. Sugie. 0.60-m f/3.7 reflector
+ CCD.
411 Oizumi. Observer T. Kobayashi. 0.41-m f/4.3 reflector + CCD.
422 Loomberah. Observer G. J. Garradd. 0.25-m f/4.1 reflector + CCD.
658 Dominion Astrophysical Observatory. Observer D. D. Balam. 1.82-m
reflector + CCD.
Orbital elements:
1998 EC3
Epoch 1998 Mar. 8.0 TT = JDT 2450880.5 Williams
M 321.54755 (2000.0) P Q
n 0.31710586 Peri. 128.29469 -0.22653684 +0.96738203
a 2.1297725 Node 128.23204 -0.93262383 -0.18187201
e 0.5124029 Incl. 8.29838 -0.28088050 -0.17633654
P 3.11 H 16.5 G 0.15
From 127 observations 1998 Mar. 1-17.
Ephemeris:
1998 EC3 a,e,i = 2.13, 0.51, 8 q = 1.0385
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
1998 03 18 10 03.84 +24 18.0 0.677 1.600 145.4 20.7 17.7
1998 03 28 09 51.66 +26 24.2 0.666 1.530 132.6 28.7 17.8
1998 04 07 09 44.10 +27 46.5 0.665 1.460 121.0 36.0 17.9
1998 04 17 09 42.31 +28 26.4 0.669 1.391 110.9 42.4 18.0
1998 04 27 09 46.47 +28 28.7 0.673 1.324 102.2 48.0 18.1
1998 05 07 09 56.29 +27 57.0 0.671 1.260 95.0 52.9 18.1
1998 05 17 10 11.13 +26 53.6 0.663 1.201 89.2 57.3 18.1
1998 05 27 10 30.39 +25 17.4 0.647 1.148 84.5 61.4 18.0
1998 06 06 10 53.69 +23 05.1 0.622 1.104 80.9 65.2 18.0
1998 06 16 11 20.67 +20 11.7 0.591 1.069 78.6 68.6 17.9
1998 06 26 11 51.37 +16 29.3 0.555 1.047 77.5 71.4 17.8
1998 07 06 12 26.13 +11 48.6 0.517 1.039 77.8 73.1 17.7
1998 07 16 13 05.49 +06 01.9 0.482 1.044 79.6 73.3 17.6
1998 07 26 13 50.20 -00 49.4 0.457 1.063 83.1 71.6 17.4
1998 08 05 14 40.68 -08 21.4 0.447 1.094 88.0 67.9 17.3
1998 08 15 15 36.02 -15 40.0 0.457 1.136 93.4 62.9 17.3
1998 08 25 16 33.71 -21 40.4 0.492 1.187 98.4 57.4 17.4
1998 09 04 17 30.08 -25 43.6 0.550 1.245 101.9 52.4 17.6
1998 09 14 18 21.83 -27 50.8 0.629 1.307 103.8 48.4 17.9
1998 09 24 19 07.47 -28 27.1 0.726 1.374 104.0 45.1 18.2
1998 10 04 19 47.07 -28 01.3 0.839 1.442 102.9 42.5 18.6
1998 10 14 20 21.43 -26 55.8 0.964 1.512 100.8 40.4 18.9
1998 10 24 20 51.62 -25 25.4 1.102 1.582 97.9 38.5 19.2
1998 11 03 21 18.59 -23 39.6 1.248 1.652 94.3 36.8 19.6
1998 11 13 21 43.08 -21 44.5 1.403 1.722 90.4 35.1 19.9
1998 11 23 22 05.68 -19 43.5 1.564 1.791 86.0 33.4 20.1
1998 12 03 22 26.84 -17 39.3 1.730 1.858 81.4 31.6 20.4
1998 12 13 22 46.86 -15 33.5 1.898 1.925 76.6 29.8 20.6
1998 12 23 23 06.00 -13 27.4 2.069 1.990 71.5 28.0 20.8
1999 01 02 23 24.45 -11 21.9 2.238 2.053 66.4 26.0 21.0
1999 01 12 23 42.32 -09 17.8 2.406 2.115 61.1 24.0 21.2
1999 01 22 23 59.75 -07 15.8 2.570 2.175 55.8 22.0 21.3
1999 02 01 00 16.80 -05 16.5 2.728 2.233 50.4 19.9 21.4
1999 02 11 00 33.54 -03 20.4 2.879 2.289 44.9 17.7 21.5
1999 02 21 00 50.04 -01 28.1 3.022 2.344 39.4 15.5 21.6
1999 03 03 01 06.31 +00 19.9 3.154 2.397 33.9 13.3 21.7
Gareth V. Williams (C) Copyright 1998 MPC M.P.E.C. 1998-F06
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