MPEC 2001-M26 : 1999 RL45
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M.P.E.C. 2001-M26 Issued 2001 June 22, 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.
Prepared using the Tamkin Foundation Computer Network
MPC@CFA.HARVARD.EDU
URL http://cfa-www.harvard.edu/iau/mpc.html ISSN 1523-6714
1999 RL45
Revision to MPEC 1999-S07
Observations:
J99R45L VC2001 06 19.96247 15 54 20.93 +14 34 04.4 22 V 493
J99R45L VC2001 06 19.99542 15 54 19.02 +14 33 57.7 493
J99R45L VC2001 06 20.99381 15 53 24.17 +14 30 33.2 493
J99R45L VC2001 06 21.00655 15 53 23.52 +14 30 30.5 493
Observer details:
493 Calar Alto. Observers DANEOPS Team (M. Busch, A. Seib, F. Hormuth).
Measurers R. Stoss, A. Gnadig, A. Doppler. 1.52-m reflector + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc, reference and Delta-T
010619 493 4.7+ 1.2+ 010621 493 4.9+ 1.3+ MPC 38802 -0.0055 day
Orbital elements:
1999 RL45
Epoch 2001 Apr. 1.0 TT = JDT 2452000.5 Spahr
M 193.58200 (2000.0) P Q
n 0.39921599 Peri. 234.04090 +0.68435534 -0.72726155
a 1.8266868 Node 172.10882 +0.72884939 +0.68436377
e 0.3746818 Incl. 22.44842 -0.02088853 +0.05231512
P 2.47 H 18.7 G 0.15 U 2
Residuals in seconds of arc
990914 704 0.6+ 0.4+ 990915 118 0.2- 0.9- 990918 848 0.1- 1.0-
990914 704 0.6+ 0.1- 990915 118 0.1+ 0.1- 990918 848 0.9+ 0.4-
990914 704 0.7+ 1.8- 990915 557 0.1- 0.2+ 991005 413 0.1- 0.1+
990914 704 0.3+ 0.4- 990915 557 0.2+ 0.7- 991005 413 0.1- 0.1+
990914 557 0.4+ 0.5- 990915 557 0.1- 0.4- 991006 413 0.3- 0.8+
990914 557 0.0 0.7- 990915 046 0.7- 0.4+ 991006 413 0.1+ 0.0
990914 557 0.2+ 0.7+ 990915 046 0.2+ 0.2+ 991015 413 0.0 0.0
990914 557 0.2- 1.0+ 990915 046 0.1- 0.4+ 991015 413 0.1+ 0.0
990914 557 0.3- 0.1+ 990915 046 0.1- 0.2+ 991016 413 0.1+ 0.3+
990914 046 0.0 0.6+ 990916 426 0.5- 0.2+ 991016 413 0.1+ 0.3+
990914 046 0.2+ 0.1- 990916 426 0.1+ 1.8+ 991104 413 0.2- 0.1-
990914 046 0.7- 0.6+ 990916 426 0.3- 0.1+ 991104 413 0.1- 0.1-
990914 046 1.3- 1.1+ 990917 848 0.9+ 0.3- 000208 413 0.3+ 0.4+
990915 658 0.0 0.1- 990917 848 0.9+ 0.1- 000208 413 0.4+ 0.4+
990915 658 0.1- 0.3- 990917 848 0.9+ 0.7+ 010619 493 0.2+ 0.3+
990915 658 0.1- 0.0 990917 848 0.2- 0.3- 010619 493 0.1- 0.1+
990915 711 0.5- 0.6- 990917 848 0.6+ 0.0 010620 493 0.5- 0.4+
990915 711 0.5- 0.2+ 990918 848 0.0 0.2- 010621 493 0.4+ 0.5+
990915 711 0.6- 0.3+ 990918 848 0.3- 0.2+
990915 118 0.5- 1.4- 990918 848 0.2+ 0.3+
Ephemeris:
1999 RL45 a,e,i = 1.83, 0.37, 22 q = 1.1423
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2001 06 20 15 54.32 +14 34.0 1.595 2.397 132.0 18.4 22.6
2001 06 30 15 46.34 +13 46.0 1.648 2.376 124.4 20.7 22.7
2001 07 10 15 41.23 +12 32.0 1.714 2.353 116.7 22.7 22.8
2001 07 20 15 39.13 +10 59.2 1.789 2.328 109.0 24.4 22.9
2001 07 30 15 39.98 +09 13.5 1.871 2.302 101.7 25.6 23.0
Gareth V. Williams (C) Copyright 2001 MPC M.P.E.C. 2001-M26
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