MPEC 1996-E05 : 1993 RR2
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M.P.E.C. 1996-E05 Issued 1996 Mar. 1, 21:24 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 RR2
Revision to MPEC 1993-T01
Observations:
J93R02R C1996 02 16.35600 10 13 43.32 +09 42 05.2 21.6 R 693
J93R02R C1996 02 16.36399 10 13 42.83 +09 42 08.5 693
J93R02R C1996 02 16.36969 10 13 42.61 +09 42 10.0 693
J93R02R C1996 02 28.27148 10 04 02.94 +10 54 51.5 20.8 V 709
J93R02R C1996 02 28.27789 10 04 02.69 +10 54 54.5 20.6 V 709
J93R02R C1996 02 28.30014 10 04 01.58 +10 55 02.9 20.2 V 709
J93R02R C1996 02 28.32233 10 04 00.52 +10 55 10.2 20.4 V 709
Observer details:
693 Catalina Station. Observer S. M. Larson. Measurer C. W. Hergenrother.
1.5-m f/3 reflector.
709 Cloudcroft. Observer W. Offutt. 0.6-m f/7 Ritchey-Chretien.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees)
960216 693 0.04- 0.01+ 960228 709 0.04- 0.01+ MPC 23247
Orbital elements:
1993 RR2
Id. C. W. Hergenrother (1996 observations)
Epoch 1996 Apr. 27.0 TT = JDT 2450200.5 Marsden
M 230.01746 (2000.0) P Q
n 0.22737512 Peri. 161.94132 +0.73351812 +0.67454318
a 2.6585250 Node 155.02430 -0.64538725 +0.72970894
e 0.4901091 Incl. 11.38132 -0.21313485 +0.11187659
P 4.33 H 15.5 G 0.15 U 4
Residuals in seconds of arc
930910 413 0.2- 0.3+ 931012 801 0.8- 0.1- 931026 413 0.0 0.4+
930910 413 0.1+ 1.1+ 931012 801 0.8- 0.1- 931027 413 0.1- 0.6+
930914 675 1.4- 0.0 931013 675 0.6+ 0.8- 931027 413 0.0 0.7+
930914 675 0.8+ 0.4- 931013 675 0.2+ 0.8- 960216 693 0.0 0.4+
930916 675 0.3+ 0.2+ 931014 801 0.4- 0.5- 960216 693 1.4- 0.8+
930916 675 1.2+ 0.2+ 931014 801 0.5- 1.4+ 960216 693 0.5- 0.2+
930918 675 (3.0- 1.0-) 931015 675 0.8+ 0.4- 960228 709 0.2- 0.7-
930922 675 0.6- 0.5- 931015 675 0.4+ 0.1- 960228 709 0.7+ 0.0
931006 670 0.1- 0.2+ 931019 675 0.2+ 0.4- 960228 709 0.5+ 0.4+
931006 670 0.5- 1.6+ 931019 675 0.3- 0.9- 960228 709 1.0+ 0.4-
931006 670 0.0 0.7- 931021 675 0.0 0.7-
931006 670 1.0+ 0.8- 931026 413 0.0 0.7+
Ephemeris:
1993 RR2 a,e,i = 2.66, 0.49, 11 q = 1.3556
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
1996 02 27 10 05.07 +10 47.2 2.860 3.843 171.7 2.1 21.0
1996 03 08 09 57.26 +11 46.1 2.881 3.827 159.6 5.2 21.1
1996 03 18 09 50.37 +12 39.2 2.932 3.811 147.7 8.0 21.3
1996 03 28 09 44.88 +13 23.6 3.009 3.794 136.3 10.5 21.5
1996 04 07 09 41.12 +13 57.9 3.106 3.775 125.4 12.5 21.6
1996 04 17 09 39.21 +14 21.7 3.220 3.756 115.0 14.0 21.7
1996 04 27 09 39.19 +14 34.9 3.344 3.736 105.2 15.1 21.8
1996 05 07 09 40.94 +14 38.2 3.473 3.715 95.9 15.7 21.9
1996 05 17 09 44.32 +14 32.4 3.604 3.693 87.0 15.9 22.0
1996 05 27 09 49.15 +14 18.1 3.733 3.669 78.6 15.7 22.0
1996 06 06 09 55.24 +13 56.1 3.856 3.645 70.5 15.2 22.1
Brian G. Marsden (C) Copyright 1996 MPC M.P.E.C. 1996-E05
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