MPEC 1999-L12: COMET C/1999 J2 (SKIFF)
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M.P.E.C. 1999-L12 Issued 1999 June 8, 20:07 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 J2 (SKIFF)
Observations:
CJ99J020 C1999 05 16.60285 16 54 04.54 +63 41 39.1 15.9 T 903
CJ99J020 C1999 05 16.61544 16 54 03.46 +63 41 39.3 903
CJ99J020 C1999 05 16.61964 16 54 03.10 +63 41 39.3 903
CJ99J020 C1999 05 17.58451 16 52 42.49 +63 40 48.7 903
CJ99J020 C1999 05 17.58871 16 52 42.25 +63 40 48.3 903
CJ99J020 C1999 05 18.15002 16 51 55.49 +63 40 14.1 16.1 T 726
CJ99J020 C1999 05 18.16104 16 51 54.62 +63 40 13.0 16.4 T 726
CJ99J020 C1999 05 18.17063 16 51 53.83 +63 40 12.6 16.1 T 726
CJ99J020 C1999 05 18.22880 16 51 48.74 +63 40 09.0 15.6 T 713
CJ99J020 C1999 05 18.25867 16 51 46.19 +63 40 07.8 15.5 T 713
CJ99J020 C1999 05 18.27394 16 51 44.94 +63 40 05.8 15.7 T 713
CJ99J020 C1999 05 18.30089 16 51 42.59 +63 40 03.7 15.7 T 713
CJ99J020 C1999 05 18.95967 16 50 47.24 +63 39 19.0 16.1 T 118
CJ99J020 C1999 05 18.96516 16 50 46.73 +63 39 18.5 118
CJ99J020 C1999 05 19.04612 16 50 40.23 +63 39 11.6 15.5 T 758
CJ99J020 C1999 05 19.05749 16 50 39.30 +63 39 10.7 15.5 T 758
CJ99J020 C1999 05 19.06333 16 50 38.72 +63 39 10.0 15.4 T 758
CJ99J020 C1999 05 19.18082 16 50 28.76 +63 39 02.2 17.7 T 750
CJ99J020 C1999 05 19.18854 16 50 28.04 +63 39 01.5 17.4 T 750
CJ99J020 C1999 05 19.20201 16 50 26.96 +63 39 00.5 17.6 T 750
CJ99J020 C1999 05 19.20639 16 50 26.54 +63 39 00.2 17.6 T 750
CJ99J020 C1999 05 19.26358 16 50 21.78 +63 38 56.0 15.7 T 713
CJ99J020 C1999 05 19.28272 16 50 20.08 +63 38 54.5 15.7 T 713
CJ99J020 C1999 05 19.29938 16 50 18.69 +63 38 53.3 15.7 T 713
CJ99J020 C1999 05 19.90000 16 49 28.02 +63 38 04.1 108
CJ99J020 C1999 05 19.90521 16 49 27.83 +63 38 04.1 15.2 T 108
CJ99J020 C1999 05 20.18472 16 49 04.28 +63 37 42.2 735
CJ99J020 C1999 05 20.19444 16 49 03.48 +63 37 41.3 735
CJ99J020 C1999 05 20.20417 16 49 02.63 +63 37 40.5 735
CJ99J020 C1999 05 20.32571 16 48 52.13 +63 37 30.0 15.6 T 732
CJ99J020 C1999 05 20.33041 16 48 51.73 +63 37 29.7 15.5 T 732
CJ99J020 C1999 05 20.33512 16 48 51.31 +63 37 29.4 15.4 T 732
CJ99J020 1999 05 20.63270 16 48 26.31 +63 37 01.9 15.8 T 372
CJ99J020 C1999 05 21.15324 16 47 42.73 +63 36 13.2 15.6 T 735
CJ99J020 C1999 05 21.20967 16 47 37.98 +63 36 07.6 15.7 T 735
CJ99J020 C1999 05 21.30247 16 47 29.68 +63 35 58.9 732
CJ99J020 C1999 05 21.30730 16 47 29.29 +63 35 58.7 732
CJ99J020 C1999 05 21.31214 16 47 28.89 +63 35 58.4 732
CJ99J020 C1999 05 22.22712 16 46 11.75 +63 34 22.8 17.5 T 750
CJ99J020 C1999 05 22.24795 16 46 09.89 +63 34 19.4 16.2 T 750
CJ99J020 1999 05 22.74340 16 45 27.58 +63 33 25.3 16.0 T 372
CJ99J020 C1999 05 23.32744 16 44 38.29 +63 32 16.1 15.9 T 840
CJ99J020 C1999 05 23.36566 16 44 34.86 +63 32 12.0 15.8 T 840
CJ99J020 C1999 05 23.85757 16 43 53.56 +63 31 10.6 15.9 T 107
CJ99J020 C1999 05 23.87586 16 43 52.10 +63 31 08.4 15.9 T 107
CJ99J020 C1999 05 23.99036 16 43 42.35 +63 30 54.4 16.4 T 618
CJ99J020 C1999 05 23.99598 16 43 41.84 +63 30 53.4 16.4 T 618
CJ99J020 C1999 05 24.00125 16 43 41.42 +63 30 53.1 15.7 T 618
CJ99J020 C1999 05 27.17416 16 39 12.79 +63 23 07.5 17.3 T 750
CJ99J020 C1999 05 27.18283 16 39 12.11 +63 23 05.6 17.6 T 750
CJ99J020 C1999 05 27.19213 16 39 11.29 +63 23 03.8 17.1 T 750
CJ99J020 C1999 05 27.96986 16 38 05.64 +63 20 53.4 046
CJ99J020 C1999 05 27.97130 16 38 05.49 +63 20 53.3 046
CJ99J020 C1999 05 27.97266 16 38 05.40 +63 20 52.8 046
CJ99J020 C1999 05 29.14618 16 36 26.25 +63 17 22.7 16.2 T 840
CJ99J020 C1999 05 29.16566 16 36 24.78 +63 17 18.4 16.2 T 840
CJ99J020 C1999 05 29.82395 16 35 29.44 +63 15 11.8 104
CJ99J020 C1999 05 29.82731 16 35 29.05 +63 15 12.0 104
CJ99J020 C1999 05 29.83223 16 35 28.82 +63 15 10.1 104
CJ99J020 C1999 05 29.90524 16 35 22.72 +63 14 57.3 046
CJ99J020 C1999 05 29.90631 16 35 22.66 +63 14 56.7 046
CJ99J020 C1999 05 29.90749 16 35 22.47 +63 14 56.0 046
CJ99J020 C1999 05 29.90881 16 35 22.46 +63 14 56.9 046
CJ99J020 C1999 05 29.90987 16 35 22.34 +63 14 56.0 046
CJ99J020 C1999 05 31.13611 16 33 39.66 +63 10 48.9 732
CJ99J020 C1999 05 31.18676 16 33 35.30 +63 10 39.1 15.7 T 732
CJ99J020 C1999 05 31.19608 16 33 34.52 +63 10 36.7 15.8 T 732
CJ99J020 C1999 05 31.20344 16 33 33.83 +63 10 35.1 15.8 T 732
CJ99J020 C1999 06 01.13439 16 32 16.25 +63 07 15.2 15.9 T 732
CJ99J020 C1999 06 01.13910 16 32 15.81 +63 07 13.8 15.8 T 732
CJ99J020 C1999 06 01.14380 16 32 15.41 +63 07 13.6 15.8 T 732
CJ99J020 C1999 06 03.36476 16 29 11.48 +62 58 36.5 17.8 T 704
CJ99J020 C1999 06 03.37222 16 29 10.39 +62 58 35.3 18.1 T 704
CJ99J020 C1999 06 03.37963 16 29 09.99 +62 58 33.8 18.4 T 704
CJ99J020 C1999 06 03.38705 16 29 09.16 +62 58 30.6 19.0 T 704
CJ99J020 C1999 06 03.39446 16 29 08.61 +62 58 29.0 17.6 T 704
CJ99J020 C1999 06 04.97654 16 26 59.24 +62 51 48.5 108
CJ99J020 C1999 06 04.99080 16 26 57.62 +62 51 41.7 15.0 T 108
CJ99J020 C1999 06 06.16355 16 25 22.50 +62 46 28.2 15.7 T 732
CJ99J020 C1999 06 06.16826 16 25 22.12 +62 46 27.2 15.7 T 732
CJ99J020 C1999 06 06.17297 16 25 21.74 +62 46 25.7 15.6 T 732
CJ99J020 C1999 06 07.00167 16 24 14.45 +62 42 35.7 629
CJ99J020 C1999 06 07.17231 16 24 01.08 +62 41 44.7 15.5 T 713
CJ99J020 C1999 06 07.18537 16 24 00.16 +62 41 40.6 15.8 T 713
CJ99J020 C1999 06 07.19951 16 23 58.95 +62 41 36.9 15.4 T 713
CJ99J020 C1999 06 07.21993 16 23 57.34 +62 41 30.7 15.6 T 713
CJ99J020 C1999 06 07.24084 16 23 55.40 +62 41 24.3 732
CJ99J020 C1999 06 07.24608 16 23 55.14 +62 41 23.1 732
CJ99J020 C1999 06 08.22571 16 22 36.91 +62 36 35.8 15.5 T 713
CJ99J020 C1999 06 08.24858 16 22 34.94 +62 36 29.0 15.7 T 713
CJ99J020 C1999 06 08.27267 16 22 32.94 +62 36 22.4 15.5 T 713
Observer details:
046 Klet. Observers J. Ticha, M. Tichy, Z. Moravec. Measurer M. Tichy.
0.57-m f/5.2 reflector + CCD.
104 San Marcello Pistoiese. Observers L. Tesi, A. Boattini, M. Tombelli,
G. D'Abramo. Measurers A. Boattini, L. Tesi, M. Tombelli, G. Forti.
0.40-m f/5 reflector + CCD.
107 Cavezzo. Observer M. Nicolini. 0.40-m f/5.5 reflector + CCD.
108 Montelupo. Observers M. Tombelli, A. Boattini, L. Tesi, D. Guidetti,
G. Forti, E. Masotti. Measurers M. Tombelli, A. Boattini, L. Tesi,
S. Bartolini, G. Forti. 0.30-m f/5.7 Schmidt-Cassegrain + CCD.
118 Modra. Observers L. Kornos, J. Toth. 0.6-m f/5.5 reflector + CCD.
372 Geisei. Observer T. Seki. 0.60-m f/3.5 reflector.
618 Martigues. Observers D. Morata, S. Morata. 0.30-m f/5.8 reflector + CCD.
629 JATE Observatory, Szeged. Observers K. Sarneczky, B. Csak. Measurers
K. Sarneczky, L. Kiss. 0.28-m Schmidt-Cassegrain + CCD.
704 Lincoln Laboratory ETS, New Mexico. Observers M. Blythe, F. Shelly,
M. Bezpalko, M. Elowitz. Measurers J. Stuart, H. Viggh, R. Sayer. 1.0-m
f/2.15 reflector + CCD.
713 Thornton. Observer R. A. Koff. 0.20-m f/10 Schmidt-Cassegrain + CCD.
726 Brainerd. Observer J. Wentworth. 0.28-m Schmidt-Cassegrain + CCD.
732 Oaxaca. Observer J. Roe. 0.25-m f/3.4 reflector + CCD.
735 George Observatory, Needville. Observers C. Gustava, R. Pepper, K. Rivich.
Measurers W. G. Dillon, K. Rivich. 0.46-m reflector + CCD.
750 Hobbs Observatory, Fall Creek. Observer R. Elliott. 0.3-m f/3.3 reflector
+ CCD.
758 BCC Observatory, Cocoa. Observer I. P. Griffin. 0.30-m f/5 Maksutov
+ CCD.
840 Flint. Observer C. Bayus. 0.25-m f/4.5 reflector + CCD.
903 Fukuchiyama. Observer M. Yoshimi. 0.25-m f/6.3 Schmidt-Cassegrain + CCD.
Orbital elements:
C/1999 J2 (Skiff)
T 2000 Apr. 1.6068 TT Williams
q 7.122835 (2000.0) P Q
Peri. 126.7802 -0.4232256 -0.4863843
Node 49.9864 -0.7092485 -0.3471331
e 1.0 Incl. 86.4250 +0.5637788 -0.8018285
From 166 observations 1999 May 12-June 8.
Ephemeris:
C/1999 J2 (Skiff)
Date TT R. A. (2000) Decl. Delta r Elong. Phase m1 m2
1999 06 01 16 32.46 +63 07.7 7.233 7.389 94.9 7.9 15.0
1999 06 11 16 18.97 +62 22.1 7.234 7.372 93.9 7.9 15.0
1999 06 21 16 06.70 +61 18.9 7.243 7.356 92.4 7.9 15.0
1999 07 01 15 56.13 +60 00.0 7.260 7.340 90.5 8.0 15.0
1999 07 11 15 47.51 +58 28.3 7.285 7.325 88.3 8.0 15.0
1999 07 21 15 40.91 +56 46.5 7.316 7.310 85.7 8.0 15.0
1999 07 31 15 36.26 +54 57.6 7.352 7.296 82.8 7.9 15.0
1999 08 10 15 33.42 +53 04.6 7.393 7.282 79.8 7.9 15.0
1999 08 20 15 32.20 +51 09.7 7.437 7.269 76.6 7.8 15.0
1999 08 30 15 32.41 +49 15.5 7.482 7.257 73.3 7.7 15.0
1999 09 09 15 33.83 +47 23.6 7.526 7.245 70.1 7.5 15.0
1999 09 19 15 36.29 +45 35.9 7.567 7.233 67.0 7.3 15.0
1999 09 29 15 39.61 +43 53.8 7.604 7.222 64.1 7.2 15.0
1999 10 09 15 43.64 +42 18.3 7.635 7.212 61.5 7.0 15.0
1999 10 19 15 48.22 +40 50.6 7.659 7.202 59.4 6.8 15.0
Gareth V. Williams (C) Copyright 1999 MPC M.P.E.C. 1999-L12
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