MPEC 1999-S04 : COMET C/1999 S1 (SOHO)
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M.P.E.C. 1999-S04 Issued 1999 Sept. 17, 15:26 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.
BMARSDEN@CFA.HARVARD.EDU or GWILLIAMS@CFA.HARVARD.EDU
URL http://cfa-www.harvard.edu/iau/mpc.html ISSN 1523-6714
COMET C/1999 S1 (SOHO)
Observations:
CJ99S010 S1999 09 16.67923 11 07 47.8 +01 17 49 249
CJ99S010 s1999 09 16.67923 2 -0.00938941 -0.00292124 -0.00108916 249
CJ99S010 S1999 09 16.69590 11 08 07.4 +01 18 18 249
CJ99S010 s1999 09 16.69590 2 -0.00938912 -0.00292431 -0.00109101 249
CJ99S010 S1999 09 16.72090 11 08 36.7 +01 19 09 249
CJ99S010 s1999 09 16.72090 2 -0.00938867 -0.00292892 -0.00109377 249
CJ99S010 S1999 09 16.73756 11 08 56.3 +01 19 56 249
CJ99S010 s1999 09 16.73756 2 -0.00938838 -0.00293198 -0.00109561 249
CJ99S010 S1999 09 16.76257 11 09 25.8 +01 20 33 249
CJ99S010 s1999 09 16.76257 2 -0.00938793 -0.00293658 -0.00109838 249
CJ99S010 S1999 09 16.77923 11 09 44.6 +01 21 07 249
CJ99S010 s1999 09 16.77923 2 -0.00938763 -0.00293964 -0.00110022 249
CJ99S010 S1999 09 16.84590 11 11 05.6 +01 23 18 249
CJ99S010 s1999 09 16.84590 2 -0.00938643 -0.00295187 -0.00110757 249
CJ99S010 S1999 09 16.86256 11 11 25.1 +01 23 53 249
CJ99S010 s1999 09 16.86256 2 -0.00938612 -0.00295492 -0.00110941 249
CJ99S010 S1999 09 16.88756 11 11 55.9 +01 24 39 249
CJ99S010 s1999 09 16.88756 2 -0.00938566 -0.00295950 -0.00111217 249
CJ99S010 S1999 09 16.92923 11 12 47.3 +01 26 10 249
CJ99S010 s1999 09 16.92923 2 -0.00938489 -0.00296712 -0.00111676 249
CJ99S010 S1999 09 16.97100 11 13 40.1 +01 27 42 249
CJ99S010 s1999 09 16.97100 2 -0.00938412 -0.00297475 -0.00112136 249
CJ99S010 S1999 09 17.01257 11 14 32.0 +01 29 15 249
CJ99S010 s1999 09 17.01257 2 -0.00938333 -0.00298233 -0.00112593 249
CJ99S010 S1999 09 17.07090 11 15 48.5 +01 31 25 249
CJ99S010 s1999 09 17.07090 2 -0.00938222 -0.00299296 -0.00113234 249
CJ99S010 S1999 09 17.09590 11 16 21.1 +01 32 20 249
CJ99S010 s1999 09 17.09590 2 -0.00938174 -0.00299751 -0.00113508 249
CJ99S010 S1999 09 17.13757 11 17 16.6 +01 34 04 249
CJ99S010 s1999 09 17.13757 2 -0.00938094 -0.00300508 -0.00113965 249
CJ99S010 S1999 09 17.17925 11 18 13.6 +01 35 39 249
CJ99S010 s1999 09 17.17925 2 -0.00938013 -0.00301264 -0.00114422 249
CJ99S010 S1999 09 17.22090 11 19 11.0 +01 37 26 249
CJ99S010 s1999 09 17.22090 2 -0.00937931 -0.00302019 -0.00114878 249
CJ99S010 S1999 09 17.26256 11 20 10.7 +01 39 16 249
CJ99S010 s1999 09 17.26256 2 -0.00937849 -0.00302773 -0.00115334 249
CJ99S010 S1999 09 17.34590 11 22 12.2 +01 43 10 249
CJ99S010 s1999 09 17.34590 2 -0.00937682 -0.00304278 -0.00116245 249
CJ99S010 S1999 09 17.38757 11 23 15.0 +01 45 06 249
CJ99S010 s1999 09 17.38757 2 -0.00937597 -0.00305029 -0.00116700 249
CJ99S010 S1999 09 17.43066 11 24 22.6 +01 47 18 249
CJ99S010 s1999 09 17.43066 2 -0.00937509 -0.00305805 -0.00117170 249
CJ99S010 S1999 09 17.47091 11 25 27.5 +01 49 30 249
CJ99S010 s1999 09 17.47091 2 -0.00937426 -0.00306528 -0.00117608 249
CJ99S010 S1999 09 17.51258 11 26 35.3 +01 51 46 249
CJ99S010 s1999 09 17.51258 2 -0.00937340 -0.00307276 -0.00118062 249
Observer details:
249 SOHO. SOHO-LASCO coronagraph C3. Comet detection by J. D. Shanklin.
Measurements by D. A. Biesecker, reduction by B. G. Marsden.
Orbital elements:
C/1999 S1 (SOHO)
T 1999 Sept. 17.89 TT Marsden
q 0.0058 (2000.0) P Q
Peri. 78.47 +0.20397 -0.97897
Node 0.30 -0.95585 -0.19983
e 1.0 Incl. 144.12 +0.21153 +0.04102
From 23 observations 1999 Sept. 16-17.
Ephemeris:
C/1999 S1 (SOHO)
Date TT R. A. (2000) Decl. Delta r Elong. Phase
1999 09 17.0 11 15.37 +01 24.0 0.990 0.096 5.5 96.1
1999 09 17.1 11 17.52 +01 27.7 0.989 0.089 5.0 97.9
1999 09 17.2 11 19.76 +01 31.7 0.988 0.081 4.5 100.0
1999 09 17.3 11 22.12 +01 36.0 0.987 0.072 4.0 102.4
1999 09 17.4 11 24.60 +01 40.7 0.987 0.063 3.5 105.3
1999 09 17.5 11 27.25 +01 45.9 0.986 0.054 2.9 109.1
1999 09 17.6 11 30.13 +01 51.7 0.986 0.043 2.2 114.4
1999 09 17.7 11 33.34 +01 58.5 0.988 0.032 1.5 123.0
1999 09 17.8 11 37.14 +02 06.7 0.991 0.018 0.6 142.0
1999 09 17.9 11 41.39 +02 13.9 1.006 0.006 0.3 79.2
1999 09 18.0 11 39.67 +02 00.9 1.025 0.021 0.2 10.2
Brian G. Marsden (C) Copyright 1999 MPC M.P.E.C. 1999-S04
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