MPEC 1996-L07 : 1993 HA
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M.P.E.C. 1996-L07 Issued 1996 June 13, 00:49 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
1993 HA
Observations:
J93H00A C1996 06 10.70157 18 21 19.94 +00 13 58.5 413
J93H00A C1996 06 10.71013 18 21 19.06 +00 14 02.4 413
J93H00A C1996 06 12.34110 18 18 39.64 +00 24 15.0 658
J93H00A C1996 06 12.34463 18 18 39.27 +00 24 16.4 658
J93H00A C1996 06 12.34802 18 18 38.91 +00 24 17.4 658
Observer details:
413 Siding Spring Observatory. Observers G. J. Garradd, R. H. McNaught,
D. I. Steel. Measurer R. H. McNaught. 1.0-m reflector + CCD.
658 Dominion Astrophysical Observatory, Victoria. Observer D. D. Balam.
1.82-m Plaskett reflector + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
960609 413 0.18- 0.44- 960610 413 0.18- 0.44- MPC 22409 -0.01 day
Orbital elements:
1993 HA
Id. G. J. Garradd (1996 observations)
Epoch 1996 Apr. 27.0 TT = JDT 2450200.5 Williams
M 146.93520 (2000.0) P Q
n 0.68192080 Peri. 263.45678 +0.05420832 -0.99849658
a 1.2783411 Node 183.46706 +0.96101411 +0.05437990
e 0.1441970 Incl. 7.72304 +0.27113344 +0.00688579
P 1.45 H 20.0 G 0.15 U 4
Residuals in seconds of arc
930417 691 0.2+ 0.0 930425 691 0.7- 0.5- 930617 691 0.2- 0.3+
930417 691 0.3+ 0.2+ 930425 691 0.9- 0.4- 930617 691 0.1- 0.2+
930417 691 0.1+ 0.6+ 930428 691 0.7- 1.1- 930617 691 0.2- 0.7+
930418 691 0.5+ 0.3+ 930428 691 0.4- 1.0- 960610 413 0.8+ 0.3-
930418 691 0.4+ 0.3+ 930428 691 0.2- 0.9- 960610 413 0.7+ 0.1+
930418 691 0.2+ 0.2+ 930513 691 0.8+ 0.9+ 960612 658 0.5- 0.3-
930419 691 0.3+ 0.1+ 930513 691 0.9+ 1.0+ 960612 658 0.5- 0.2-
930419 691 0.1+ 0.2- 930513 691 1.0+ 1.1+ 960612 658 0.6- 0.4-
930419 691 0.2- 0.3+ 930526 691 0.1+ 0.1-
930425 691 0.9- 0.6- 930526 691 0.5- 0.1+
Ephemeris:
1993 HA a,e,i = 1.28, 0.14, 8 q = 1.0940
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
1996 06 06 18 28.45 -00 23.7 0.497 1.462 148.6 21.2 20.3
1996 06 11 18 20.86 +00 15.9 0.486 1.463 152.1 18.9 20.2
1996 06 16 18 12.39 +00 43.3 0.478 1.463 154.6 17.3 20.1
1996 06 21 18 03.42 +00 57.1 0.475 1.462 155.6 16.7 20.1
1996 06 26 17 54.38 +00 56.7 0.476 1.461 154.9 17.2 20.1
1996 07 01 17 45.69 +00 42.3 0.480 1.460 152.6 18.7 20.2
1996 07 06 17 37.72 +00 14.9 0.488 1.458 149.3 20.9 20.3
1996 07 11 17 30.76 -00 24.1 0.500 1.456 145.2 23.5 20.4
1996 07 16 17 25.06 -01 12.8 0.515 1.453 140.9 26.2 20.6
1996 07 21 17 20.78 -02 09.2 0.533 1.449 136.5 28.9 20.7
1996 07 26 17 17.99 -03 11.0 0.553 1.446 132.1 31.4 20.9
1996 07 31 17 16.67 -04 16.6 0.575 1.441 127.9 33.7 21.0
Gareth V. Williams (C) Copyright 1996 MPC M.P.E.C. 1996-L07
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