MPEC 1996-K03 : 1996 JA1
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Read MPEC 1996-K02
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M.P.E.C. 1996-K03 Issued 1996 May 17, 20:26 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
1996 JA1
Revision to MPEC 1996-K01
Observations:
J96J01A C1996 05 16.83912 15 39 07.70 +16 44 34.9 557
J96J01A C1996 05 16.84021 15 39 07.17 +16 44 34.8 557
J96J01A C1996 05 16.84318 15 39 05.73 +16 44 34.3 557
J96J01A C1996 05 16.84428 15 39 05.19 +16 44 34.1 14.9 V 557
J96J01A C1996 05 16.88568 15 38 45.95 +16 44 38.1 587
J96J01A C1996 05 16.88728 15 38 45.14 +16 44 38.0 587
J96J01A C1996 05 16.88894 15 38 44.28 +16 44 37.4 587
J96J01A C1996 05 17.00169 15 37 41.88 +16 43 45.9 14.7 R 046
J96J01A C1996 05 17.00252 15 37 41.40 +16 43 45.4 046
J96J01A C1996 05 17.00348 15 37 40.87 +16 43 45.0 046
J96J01A C1996 05 17.06397 15 37 06.39 +16 43 04.9 557
J96J01A C1996 05 17.06666 15 37 04.75 +16 43 07.6 14.7 R 046
J96J01A C1996 05 17.06741 15 37 04.41 +16 43 02.6 557
J96J01A C1996 05 17.06748 15 37 04.27 +16 43 07.0 046
J96J01A C1996 05 17.06867 15 37 03.58 +16 43 06.3 046
J96J01A C1996 05 17.06927 15 37 03.34 +16 43 01.4 14.8 V 557
J96J01A C1996 05 17.25418 15 35 46.39 +16 43 20.4 568
J96J01A C1996 05 17.25524 15 35 45.72 +16 43 20.2 568
J96J01A 1996 05 17.25910 15 35 31.24 +16 42 52.4 693
J96J01A 1996 05 17.26604 15 35 26.28 +16 42 50.1 693
J96J01A 1996 05 17.27299 15 35 21.31 +16 42 49.6 693
J96J01A 1996 05 17.31523 15 34 50.90 +16 42 24.1 693
J96J01A 1996 05 17.32218 15 34 45.67 +16 42 20.4 693
J96J01A 1996 05 17.32912 15 34 40.58 +16 42 16.7 693
J96J01A C1996 05 17.51771 15 32 44.35 +16 39 42.9 14.2 V 896
J96J01A C1996 05 17.52083 15 32 41.68 +16 39 39.1 896
J96J01A C1996 05 17.52326 15 32 39.74 +16 39 39.0 896
J96J01A C1996 05 17.52674 15 32 36.72 +16 39 37.7 896
J96J01A C1996 05 17.52858 15 32 36.31 +16 39 39.7 353
J96J01A C1996 05 17.53125 15 32 33.83 +16 39 38.5 353
J96J01A C1996 05 17.53558 15 32 30.43 +16 39 37.4 353
J96J01A C1996 05 17.54254 15 32 25.01 +16 39 38.1 14.2 V 360
J96J01A C1996 05 17.54601 15 32 22.00 +16 39 36.2 360
J96J01A C1996 05 17.59670 15 31 36.59 +16 39 04.1 360
J96J01A C1996 05 17.60156 15 31 32.09 +16 39 00.4 360
J96J01A C1996 05 17.60946 15 31 02.37 +16 39 19.3 568
J96J01A C1996 05 17.81242 15 28 34.57 +16 33 44.9 14.2 R 046
J96J01A C1996 05 17.81366 15 28 33.24 +16 33 44.0 046
J96J01A C1996 05 17.81583 15 28 30.95 +16 33 42.2 046
J96J01A C1996 05 17.81736 15 28 29.35 +16 33 40.8 046
J96J01A C1996 05 17.82192 15 28 24.46 +16 33 37.1 046
J96J01A C1996 05 17.82273 15 28 23.59 +16 33 36.5 14.1 R 046
Observer details:
046 Klet. Observers J. Ticha, M. Tichy, Z. Moravec. 0.57-m f/5.2
reflector.
353 Nishi Kobe. Observer K. Ito. 0.20-m f/4.0 reflector.
360 Kuma Kogen. Observer A. Nakamura. 0.60-m f/6.0 Ritchey-Chretien.
557 Ondrejov. Observers P. Pravec. 0.65-m f/3.6 reflector.
568 Mauna Kea. Observers D. J. Tholen, D. Jewitt. Measurer R. Whiteley.
2.2-m reflector.
587 Sormano. Observer P. Sicoli. 0.5-m reflector.
693 Catalina Station, Tucson. Observers C. W. Hergenrother, T. B. Spahr.
0.41-m f/3 Schmidt.
896 Yatsugatake. Observer Y. Kushida. 0.40-m f/5 reflector.
Orbital elements:
1996 JA1
Epoch 1996 Apr. 27.0 TT = JDT 2450200.5 Marsden
M 344.24138 (2000.0) P Q
n 0.24391035 Peri. 245.92565 +0.51118635 +0.79645885
a 2.5369733 Node 58.75784 -0.58504042 +0.59777719
e 0.6978426 Incl. 22.19801 -0.62961593 +0.09119062
P 4.04 H 21.0 G 0.15 U 7
From 52 observations 1996 May 14-17, mean residual 0".65.
Ephemeris:
1996 JA1 a,e,i = 2.54, 0.70, 22 q = 0.7666
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
1996 05 18.00 15 24.94 +16 33.8 0.021 1.029 143.7 35.7 14.1
1996 05 18.50 15 10.73 +16 15.8 0.015 1.024 143.2 36.3 13.4
1996 05 18.55 15 08.66 +16 12.9 0.014 1.023 143.1 36.4 13.3
1996 05 18.60 15 06.40 +16 09.6 0.014 1.023 143.0 36.5 13.2
1996 05 18.65 15 03.94 +16 05.8 0.013 1.022 142.9 36.6 13.1
1996 05 18.70 15 01.25 +16 01.7 0.013 1.022 142.8 36.8 13.0
1996 05 18.75 14 58.30 +15 56.9 0.012 1.021 142.6 37.0 12.9
1996 05 18.80 14 55.04 +15 51.5 0.011 1.021 142.4 37.2 12.8
1996 05 18.85 14 51.42 +15 45.2 0.011 1.020 142.2 37.4 12.7
1996 05 18.90 14 47.39 +15 38.0 0.010 1.020 142.0 37.7 12.6
1996 05 18.95 14 42.88 +15 29.5 0.0096 1.019 141.6 38.0 12.5
1996 05 19.00 14 37.78 +15 19.6 0.0090 1.019 141.2 38.4 12.3
1996 05 19.05 14 32.01 +15 07.7 0.0084 1.018 140.8 38.9 12.2
1996 05 19.10 14 25.40 +14 53.5 0.0079 1.018 140.2 39.5 12.1
1996 05 19.15 14 17.80 +14 36.2 0.0073 1.017 139.4 40.3 11.9
1996 05 19.20 14 08.96 +14 14.8 0.0067 1.017 138.5 41.2 11.8
1996 05 19.25 13 58.60 +13 48.1 0.0062 1.016 137.3 42.5 11.6
1996 05 19.30 13 46.35 +13 14.3 0.0057 1.016 135.8 44.0 11.5
1996 05 19.35 13 31.72 +12 30.8 0.0052 1.015 133.8 46.0 11.3
1996 05 19.40 13 14.12 +11 34.3 0.0047 1.015 131.1 48.7 11.2
1996 05 19.45 12 52.81 +10 20.0 0.0042 1.015 127.7 52.1 11.1
1996 05 19.50 12 26.98 +08 42.1 0.0038 1.014 123.2 56.6 11.0
1996 05 19.55 11 55.95 +06 34.7 0.0035 1.014 117.4 62.4 11.0
1996 05 19.60 11 19.45 +03 54.6 0.0032 1.013 110.2 69.6 11.0
1996 05 19.65 10 38.22 +00 45.5 0.0031 1.013 101.8 78.1 11.2
1996 05 19.70 09 54.33 -02 37.6 0.0030 1.012 92.6 87.3 11.5
1996 05 19.75 09 10.78 -05 52.3 0.0031 1.012 83.5 96.4 11.9
1996 05 19.80 08 30.49 -08 39.6 0.0033 1.011 75.2 104.6 12.5
1996 05 19.85 07 55.20 -10 51.5 0.0036 1.011 68.2 111.6 13.1
1996 05 19.90 07 25.39 -12 30.0 0.0040 1.010 62.6 117.2 13.7
1996 05 19.95 07 00.66 -13 41.6 0.0044 1.010 58.1 121.7 14.2
1996 05 20.00 06 40.25 -14 33.3 0.0048 1.009 54.6 125.2 14.7
1996 05 20.05 06 23.37 -15 10.9 0.0053 1.009 51.8 127.9 15.2
1996 05 20.10 06 09.33 -15 38.3 0.0058 1.008 49.6 130.1 15.6
1996 05 20.15 05 57.54 -15 58.7 0.0064 1.008 47.9 131.8 15.9
1996 05 20.20 05 47.56 -16 14.1 0.0069 1.007 46.5 133.2 16.3
1996 05 20.25 05 39.02 -16 25.8 0.0075 1.007 45.3 134.4 16.6
1996 05 20.30 05 31.66 -16 34.8 0.0080 1.006 44.4 135.3 16.8
1996 05 20.35 05 25.25 -16 41.8 0.0086 1.006 43.6 136.1 17.0
1996 05 20.40 05 19.64 -16 47.4 0.0092 1.005 42.9 136.7 17.3
1996 05 20.45 05 14.69 -16 51.8 0.0098 1.005 42.4 137.2 17.5
1996 05 20.50 05 10.29 -16 55.4 0.010 1.004 41.9 137.7 17.6
1996 05 20.55 05 06.36 -16 58.3 0.011 1.004 41.5 138.1 17.8
1996 05 20.60 05 02.83 -17 00.6 0.012 1.003 41.1 138.4 18.0
1996 05 20.65 04 59.64 -17 02.5 0.012 1.003 40.8 138.7 18.1
1996 05 20.70 04 56.75 -17 04.1 0.013 1.003 40.5 139.0 18.2
1996 05 20.75 04 54.11 -17 05.4 0.013 1.002 40.3 139.2 18.4
1996 05 20.80 04 51.70 -17 06.5 0.014 1.002 40.1 139.4 18.5
1996 05 20.85 04 49.49 -17 07.3 0.014 1.001 39.9 139.6 18.6
1996 05 20.90 04 47.45 -17 08.1 0.015 1.001 39.7 139.7 18.7
1996 05 20.95 04 45.57 -17 08.7 0.016 1.000 39.6 139.9 18.8
1996 05 21.0 04 43.83 -17 09.2 0.016 1.000 39.4 140.0 18.9
1996 05 21.5 04 31.56 -17 11.0 0.022 0.995 38.6 140.6 19.7
1996 05 22.0 04 24.52 -17 10.5 0.028 0.990 38.2 140.8 20.2
1996 05 22.5 04 19.95 -17 09.4 0.034 0.986 38.0 140.7 20.6
1996 05 23.0 04 16.76 -17 08.1 0.041 0.981 37.9 140.6 20.9
1996 05 23.5 04 14.39 -17 06.7 0.047 0.976 37.9 140.4 21.2
1996 05 24.0 04 12.57 -17 05.2 0.053 0.972 37.9 140.2 21.4
1996 05 24.5 04 11.13 -17 03.7 0.059 0.967 38.0 139.9 21.6
1996 05 25.0 04 09.95 -17 02.1 0.065 0.963 38.0 139.6 21.8
1996 05 25.5 04 08.98 -17 00.4 0.071 0.958 38.1 139.3 21.9
1996 05 26.0 04 08.16 -16 58.6 0.077 0.953 38.1 139.0 22.1
1996 05 26.5 04 07.46 -16 56.6 0.083 0.949 38.2 138.7 22.2
1996 05 27.0 04 06.86 -16 54.6 0.090 0.945 38.3 138.3 22.3
During the earth encounter on May 19-20 the above geocentric ephemeris
will obviously need to be corrected for parallax, which can affect the
topocentric position by up to almost one degree. Observers with access to the
WWW are advised that for this special case of 1996 JA1 a facility for
generating a TOPOCENTRIC ephemeris for a user-specified site is included
in the Minor Planet Center's pages at
http://cfa-www.harvard.edu/cfa/ps/NEO/1996JA1.html
The WWW ephemeris is in UTC at intervals of 1 hour through May 19.0,
10 min for May 19.0-21.0 and again 1 hour for May 21.0-25.0.
Further orbital updates on MPECs are to be expected over the weekend, and
these updates will also be incorporated into the WWW.
Brian G. Marsden (C) Copyright 1996 MPC M.P.E.C. 1996-K03
Read MPEC 1996-K02
Read MPEC 1996-K04
Enter an MPEC number in one of the following forms:
- 1997-B01 (the full form)
- J97B01 (the packed version of the full form)
- B01 (the abbreviated form)