MPEC 1998-E08 : 1998 EC3
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M.P.E.C. 1998-E08 Issued 1998 Mar. 3, 20:05 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
Observations:
J98E03C* C1998 03 01.59221 10 27 46.25 +19 41 41.8 17.5 411
J98E03C C1998 03 01.62592 10 27 43.18 +19 42 17.8 411
J98E03C C1998 03 01.63952 10 27 42.01 +19 42 33.1 411
J98E03C C1998 03 01.65955 10 27 40.18 +19 42 54.8 411
J98E03C C1998 03 01.74286 10 27 33.0 +19 44 23 897
J98E03C SC1998 03 01.75356 10 27 32.91 +19 44 33.5 16.9 V 046
J98E03C C1998 03 01.75892 10 27 31.6 +19 44 43 897
J98E03C SC1998 03 01.76064 10 27 32.36 +19 44 41.2 046
J98E03C C1998 03 01.76455 10 27 31.98 +19 44 45.1 557
J98E03C C1998 03 01.76686 10 27 31.80 +19 44 47.2 18.1 V 557
J98E03C C1998 03 01.76919 10 27 31.59 +19 44 49.4 557
J98E03C C1998 03 01.78441 10 27 30.27 +19 45 06.5 557
J98E03C C1998 03 01.79089 10 27 29.69 +19 45 14.0 557
J98E03C C1998 03 01.81527 10 27 27.55 +19 45 40.8 17.7 R 046
J98E03C C1998 03 01.81595 10 27 26.57 +19 45 42.7 17.9 327
J98E03C C1998 03 01.81873 10 27 27.23 +19 45 44.4 046
J98E03C C1998 03 01.82054 10 27 26.17 +19 45 47.8 17.8 327
J98E03C C1998 03 01.82159 10 27 27.00 +19 45 47.4 046
J98E03C C1998 03 01.82522 10 27 25.75 +19 45 52.7 17.8 327
J98E03C C1998 03 01.82616 10 27 26.59 +19 45 52.6 046
J98E03C C1998 03 01.92135 10 27 18.25 +19 47 37.3 587
J98E03C C1998 03 01.92784 10 27 17.64 +19 47 44.1 587
J98E03C C1998 03 02.38832 10 26 37.48 +19 56 05.3 18.0 V 691
J98E03C C1998 03 02.39259 10 26 37.10 +19 56 09.9 18.1 V 691
J98E03C C1998 03 02.39661 10 26 36.74 +19 56 14.1 18.0 V 691
J98E03C C1998 03 02.47678 10 26 30.78 +19 57 40.1 411
J98E03C C1998 03 02.48703 10 26 29.86 +19 57 51.4 411
J98E03C C1998 03 02.49045 10 26 29.57 +19 57 54.8 411
J98E03C C1998 03 02.49341 10 26 29.36 +19 57 58.1 17.7 V 867
J98E03C C1998 03 02.49475 10 26 29.22 +19 57 59.3 355
J98E03C C1998 03 02.49529 10 26 29.00 +19 58 12.9 17.8 R 422
J98E03C C1998 03 02.49700 10 26 28.89 +19 58 15.2 17.2 R 422
J98E03C C1998 03 02.49782 10 26 28.89 +19 58 03.9 17.5 V 402
J98E03C C1998 03 02.49841 10 26 28.88 +19 58 03.7 355
J98E03C C1998 03 02.49862 10 26 28.88 +19 58 03.8 867
J98E03C C1998 03 02.49872 10 26 28.74 +19 58 17.3 17.5 R 422
J98E03C C1998 03 02.50044 10 26 28.59 +19 58 19.1 17.4 R 422
J98E03C C1998 03 02.50060 10 26 28.65 +19 58 06.9 402
J98E03C C1998 03 02.50216 10 26 28.39 +19 58 20.5 17.5 R 422
J98E03C C1998 03 02.50314 10 26 28.45 +19 58 09.4 16.3 V 355
J98E03C C1998 03 02.50338 10 26 28.38 +19 58 10.3 402
J98E03C C1998 03 02.50661 10 26 28.16 +19 58 12.6 867
J98E03C C1998 03 02.50780 10 26 28.09 +19 58 13.0 17.6 V 897
J98E03C C1998 03 02.51249 10 26 27.68 +19 58 19.3 17.2 V 367
J98E03C C1998 03 02.51314 10 26 27.57 +19 58 19.5 897
J98E03C C1998 03 02.51355 10 26 27.56 +19 58 20.1 867
J98E03C C1998 03 02.51667 10 26 27.30 +19 58 24.0 367
J98E03C C1998 03 02.52008 10 26 26.96 +19 58 27.0 897
J98E03C C1998 03 02.52082 10 26 26.95 +19 58 28.8 367
J98E03C C1998 03 02.54580 10 26 24.65 +19 58 55.5 17.0 V 403
J98E03C C1998 03 02.55669 10 26 23.59 +19 59 07.1 403
J98E03C C1998 03 02.56101 10 26 23.25 +19 59 12.5 900
J98E03C C1998 03 02.56727 10 26 22.64 +19 59 18.6 403
J98E03C C1998 03 02.57038 10 26 22.34 +19 59 22.4 411
J98E03C C1998 03 02.57365 10 26 22.07 +19 59 26.2 17.4 V 900
J98E03C C1998 03 02.57857 10 26 21.64 +19 59 31.0 411
J98E03C C1998 03 02.59288 10 26 20.40 +19 59 47.1 17.8 V 360
J98E03C C1998 03 02.59896 10 26 19.86 +19 59 53.6 360
J98E03C C1998 03 02.61704 10 26 18.22 +20 00 13.8 16.9 V 864
J98E03C C1998 03 02.61875 10 26 18.05 +20 00 15.2 360
J98E03C C1998 03 02.62606 10 26 17.57 +20 00 21.8 17.7 327
J98E03C C1998 03 02.62958 10 26 17.15 +20 00 27.2 864
J98E03C C1998 03 02.63589 10 26 16.71 +20 00 32.6 327
J98E03C C1998 03 02.63938 10 26 16.17 +20 00 36.8 864
J98E03C C1998 03 02.64529 10 26 15.84 +20 00 42.7 327
J98E03C C1998 03 02.81449 10 26 01.60 +20 03 44.1 17.5 V 104
J98E03C C1998 03 02.81725 10 26 01.36 +20 03 47.6 104
J98E03C C1998 03 02.81944 10 26 01.18 +20 03 49.9 104
J98E03C C1998 03 02.82720 10 26 00.49 +20 03 57.9 104
J98E03C C1998 03 02.84350 10 25 59.04 +20 04 16.0 17.5 R 106
J98E03C C1998 03 02.86955 10 25 56.68 +20 04 44.1 17.4 R 106
J98E03C C1998 03 02.88313 10 25 55.45 +20 04 59.0 17.6 R 106
J98E03C C1998 03 03.33828 10 25 15.42 +20 13 14.4 711
J98E03C C1998 03 03.34558 10 25 14.74 +20 13 21.5 711
J98E03C C1998 03 03.43462 10 25 07.86 +20 14 56.4 17.5 V 402
J98E03C C1998 03 03.43670 10 25 07.71 +20 14 58.8 402
J98E03C C1998 03 03.43878 10 25 07.56 +20 15 01.5 402
J98E03C C1998 03 03.49472 10 25 02.54 +20 16 00.8 411
J98E03C C1998 03 03.49877 10 25 02.18 +20 16 05.4 411
J98E03C C1998 03 03.50553 10 25 01.54 +20 16 12.2 411
J98E03C C1998 03 03.51293 10 25 00.88 +20 16 21.0 16.7 V 355
J98E03C C1998 03 03.51762 10 25 00.49 +20 16 26.9 355
J98E03C C1998 03 03.53818 10 24 58.57 +20 16 48.7 17.4 V 367
J98E03C C1998 03 03.54235 10 24 58.14 +20 16 53.5 367
Observer details:
046 Klet. Observers J. Ticha, M. Tichy. 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.
106 Crni Vrh. Observers H. Mikuz, B. Dintinjana, J. Skvarc. 0.36-m f/6.7
Schmidt-Cassegrain + CCD.
327 Peking Observatory, Xinglong Station. Observers R. Chen, X. Y. Li, J. Zhu.
Measurers J. Zhu, X. M. Teng, X. Y. Li. 0.6-m Schmidt + CCD.
355 Hadano. Observer A. Asami. 0.2-m f/4.0 reflector + CCD.
360 Kuma Kogen. Observer A. Nakamura. 0.60-m f/6.0 Ritchey-Chretien + CCD.
367 Yatsuka. Observer H. Abe. 0.26-m f/6.0 reflector + CCD.
402 Dynic Astronomical Observatory. Observer A. Sugie. 0.60-m f/3.7 reflector
+ CCD.
403 Kani. Observer T. Mizuno. Measurer T. Furuta. 0.20-m f/4.0 hyperboloid
astrocamera.
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.
557 Ondrejov. Observer P. Pravec. 0.65-m f/3.6 reflector + CCD.
587 Sormano. Observers F. Manca, G. Ventre. 0.5-m reflector + CCD.
691 Steward Observatory, Kitt Peak. Observer J. Larsen. 0.9-m Spacewatch
telescope.
711 McDonald Observatory. Observer P. J. Shelus. 0.76-m reflector + CCD.
864 Kumamoto. Observer 0.41-m f/5.0 reflector + CCD. Observer J. Kobayashi.
Measurer K. Kinoshita.
867 Saji Observatory. Observers M. Yamanishi, A. Miyamoto, M. Aimoto,
T. Oribe. 1.03-m f/4.8 reflector + CCD.
897 Chiyoda. Observer T. Kojima. 0.25-m f/6.0 reflector + CCD.
900 Moriyama. Observer Y. Ikari. 0.25-m f/6.3 reflector + CCD.
Orbital elements:
1998 EC3
Epoch 1998 Feb. 16.0 TT = JDT 2450860.5 Williams
M 314.79453 (2000.0) P Q
n 0.31801987 Peri. 128.40849 -0.22001725 +0.96876449
a 2.1256898 Node 128.49427 -0.93436983 -0.17559406
e 0.5114568 Incl. 8.40495 -0.28025958 -0.17510591
P 3.10 H 16.5 G 0.15
From 82 observations 1998 Mar. 1-3.
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 02 26 10 32.75 +18 36.8 0.761 1.744 170.2 5.5 17.6
1998 03 08 10 18.40 +21 36.1 0.711 1.675 158.8 12.4 17.6
1998 03 18 10 03.85 +24 17.9 0.683 1.605 145.4 20.6 17.7
1998 03 28 09 51.70 +26 23.9 0.672 1.535 132.6 28.6 17.8
1998 04 07 09 44.15 +27 46.1 0.672 1.465 121.0 35.8 17.9
1998 04 17 09 42.35 +28 26.1 0.677 1.396 110.9 42.2 18.0
1998 04 27 09 46.47 +28 28.5 0.681 1.329 102.2 47.7 18.1
1998 05 07 09 56.23 +27 57.1 0.680 1.265 95.0 52.6 18.1
1998 05 17 10 10.97 +26 54.0 0.672 1.206 89.1 57.0 18.1
1998 05 27 10 30.12 +25 18.5 0.657 1.152 84.4 61.0 18.1
1998 06 06 10 53.26 +23 07.3 0.633 1.107 80.8 64.8 18.0
1998 06 16 11 20.05 +20 15.7 0.602 1.072 78.4 68.2 17.9
1998 06 26 11 50.48 +16 36.0 0.566 1.049 77.3 71.0 17.9
1998 07 06 12 24.87 +11 59.4 0.528 1.039 77.4 72.8 17.7
1998 07 16 13 03.72 +06 18.4 0.493 1.043 79.1 73.2 17.6
1998 07 26 13 47.78 -00 26.4 0.467 1.060 82.4 71.7 17.5
1998 08 05 14 37.51 -07 53.3 0.455 1.091 87.1 68.3 17.4
1998 08 15 15 32.20 -15 11.4 0.464 1.132 92.4 63.4 17.4
1998 08 25 16 29.55 -21 17.3 0.496 1.182 97.4 58.0 17.4
1998 09 04 17 26.02 -25 29.3 0.552 1.239 101.0 53.0 17.6
1998 09 14 18 18.24 -27 45.0 0.629 1.301 103.0 48.9 17.9
1998 09 24 19 04.53 -28 27.6 0.725 1.367 103.4 45.6 18.2
1998 10 04 19 44.78 -28 05.7 0.836 1.435 102.4 42.9 18.6
1998 10 14 20 19.72 -27 02.2 0.961 1.505 100.4 40.7 18.9
1998 10 24 20 50.38 -25 32.7 1.097 1.575 97.6 38.8 19.2
1998 11 03 21 17.73 -23 47.0 1.243 1.645 94.1 37.0 19.6
1998 11 13 21 42.52 -21 51.6 1.397 1.715 90.2 35.3 19.8
1998 11 23 22 05.37 -19 50.1 1.557 1.783 85.9 33.5 20.1
1998 12 03 22 26.72 -17 45.2 1.722 1.851 81.3 31.8 20.4
1998 12 13 22 46.89 -15 38.8 1.891 1.917 76.5 30.0 20.6
1998 12 23 23 06.16 -13 32.0 2.060 1.982 71.5 28.1 20.8
1999 01 02 23 24.70 -11 25.8 2.230 2.046 66.4 26.1 21.0
1999 01 12 23 42.66 -09 21.1 2.397 2.107 61.2 24.1 21.1
1999 01 22 00 00.17 -07 18.5 2.561 2.167 55.9 22.1 21.3
1999 02 01 00 17.29 -05 18.7 2.719 2.226 50.5 20.0 21.4
1999 02 11 00 34.09 -03 22.2 2.870 2.282 45.0 17.8 21.5
1999 02 21 00 50.64 -01 29.6 3.013 2.337 39.6 15.6 21.6
1999 03 03 01 06.96 +00 18.8 3.145 2.390 34.1 13.4 21.7
Gareth V. Williams (C) Copyright 1998 MPC M.P.E.C. 1998-E08
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