MPEC 1998-S12 : 1998 RO4
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M.P.E.C. 1998-S12 Issued 1998 Sept. 19, 19:51 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 RO4
Observations:
J98R04O C1998 08 23.42230 00 34 49.83 +14 12 23.7 17.5 R 699
J98R04O C1998 08 23.44645 00 34 50.39 +14 12 09.1 699
J98R04O C1998 08 23.47145 00 34 50.98 +14 11 55.0 699
J98R04O C1998 08 27.39800 00 36 28.26 +13 29 30.8 17.4 R 699
J98R04O C1998 08 27.42988 00 36 28.53 +13 29 08.2 699
J98R04O C1998 08 27.45470 00 36 28.81 +13 28 50.5 699
J98R04O C1998 08 28.26482 00 36 43.48 +13 19 06.5 17.8 704
J98R04O C1998 08 28.27394 00 36 43.45 +13 18 59.1 17.8 704
J98R04O C1998 08 28.28321 00 36 43.68 +13 18 53.0 18.0 704
J98R04O C1998 08 28.29254 00 36 43.71 +13 18 46.9 18.0 704
J98R04O C1998 08 28.30175 00 36 43.80 +13 18 39.4 18.0 704
J98R04O* C1998 09 14.35564 00 34 23.04 +08 57 18.9 18.2 704
J98R04O C1998 09 14.37783 00 34 22.25 +08 56 55.3 704
J98R04O C1998 09 14.39983 00 34 21.56 +08 56 32.8 704
J98R04O C1998 09 15.40096 00 33 54.42 +08 39 05.4 17.3 R 699
J98R04O C1998 09 15.42578 00 33 53.57 +08 38 39.0 699
J98R04O C1998 09 15.45060 00 33 52.69 +08 38 12.8 699
J98R04O C1998 09 18.37324 00 32 26.67 +07 46 58.3 18.3 704
J98R04O C1998 09 18.38596 00 32 26.18 +07 46 44.6 18.6 704
J98R04O C1998 09 18.39934 00 32 25.69 +07 46 31.1 18.6 704
J98R04O C1998 09 18.41300 00 32 25.23 +07 46 16.4 18.6 704
J98R04O C1998 09 18.42661 00 32 24.66 +07 46 02.1 18.7 704
Observer details:
699 Lowell Observatory-LONEOS. Observers B. A. Skiff, W. D. Ferris.
Measurer B. W. Koehn. 0.59-m LONEOS Schmidt + CCD.
704 Lincoln Laboratory ETS, New Mexico. Observers M. Blythe, F. Shelly,
M. Bezpalko. Measurers J. Stuart, H. Viggh, R. Sayer. 1.0-m f/2.15
reflector + CCD.
Orbital elements:
1998 RO4
Epoch 1998 Sept. 4.0 TT = JDT 2451060.5 Williams
M 17.94828 (2000.0) P Q
n 0.31527053 Peri. 111.28052 +0.55219317 +0.83348055
a 2.1380300 Node 192.29630 -0.79526724 +0.51944185
e 0.4270672 Incl. 5.34032 -0.25026531 +0.18838878
P 3.13 H 18.0 G 0.15
From 22 observations 1998 Aug. 23-Sept. 18.
Ephemeris:
1998 RO4 a,e,i = 2.14, 0.43, 5 q = 1.2249
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
1998 09 14 00 34.54 +09 03.7 0.405 1.392 159.0 15.0 17.6
1998 09 24 00 29.39 +06 09.3 0.439 1.438 171.2 6.2 17.5
1998 10 04 00 24.15 +03 30.7 0.488 1.488 176.2 2.5 17.6
1998 10 14 00 20.59 +01 26.8 0.554 1.539 164.8 9.8 18.3
1998 10 24 00 19.67 +00 05.2 0.638 1.593 154.1 15.8 18.9
1998 11 03 00 21.74 -00 35.0 0.737 1.647 144.3 20.6 19.4
1998 11 13 00 26.57 -00 39.9 0.850 1.703 135.3 24.1 19.9
1998 11 23 00 33.78 -00 16.9 0.977 1.758 127.1 26.6 20.4
1998 12 03 00 42.98 +00 27.7 1.114 1.814 119.4 28.3 20.8
1998 12 13 00 53.75 +01 27.9 1.261 1.869 112.1 29.2 21.1
1998 12 23 01 05.79 +02 39.3 1.415 1.923 105.2 29.6 21.5
1999 01 02 01 18.87 +03 58.3 1.576 1.977 98.5 29.5 21.8
1999 01 12 01 32.76 +05 21.8 1.741 2.030 92.1 29.0 22.0
Gareth V. Williams (C) Copyright 1998 MPC M.P.E.C. 1998-S12
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