MPEC 2002-M45 : 2001 KN77
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M.P.E.C. 2002-M45 Issued 2002 June 28, 23:16 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
2001 KN77
Revision to MPEC 2002-B13
Observations:
K01K77N C2002 06 08.32015 15 30 44.38 -19 28 28.3 675
K01K77N C2002 06 08.34518 15 30 44.25 -19 28 27.9 22.7 R 675
K01K77N C2002 06 08.36531 15 30 44.12 -19 28 27.7 22.9 R 675
K01K77N C2002 06 16.16449 15 30 05.94 -19 26 15.2 22.5 R 695
K01K77N C2002 06 16.25756 15 30 05.46 -19 26 14.1 695
Observer details:
675 Palomar Mountain. Observers J. Burns, V. Carruba, B. Gladman. Measurer
B. Gladman. 5-m reflector + CCD.
695 Kitt Peak. Observers B. Gladman, C. Hergenrother. Measurer B. Gladman.
2.1-m reflector + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees) and reference
020608 675 0.50- 0.12+ 020616 695 0.50- 0.12+ MPO 23620
Orbital elements:
2001 KN77
Epoch 2002 May 6.0 TT = JDT 2452400.5 MPC
M 296.17619 (2000.0) P Q
n 0.00405213 Peri. 281.21762 +0.83396504 +0.55104056
a 38.9654935 Node 45.35199 -0.48887537 +0.76240039
e 0.2384804 Incl. 2.35776 -0.25593588 +0.33926384
P 243 H 6.7 G 0.15 U 6
Residuals in seconds of arc
010523 807 0.1+ 0.1+ 010612 304 0.1- 0.2- 020608 675 0.3- 0.2-
010523 807 0.1- 0.0 020608 675 0.1+ 0.0 020616 695 0.3+ 0.4+
010612 304 0.0 0.0 020608 675 0.1+ 0.1- 020616 695 0.2- 0.1-
Ephemeris:
2001 KN77 a,e,i = 38.97, 0.24, 2 q = 29.673
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2002 06 25 15 29.45 -19 24.0 36.063 36.864 141.6 1.0 22.5
2002 07 05 15 28.83 -19 21.8 36.171 36.858 131.9 1.2 22.5
2002 07 15 15 28.35 -19 20.1 36.299 36.851 122.2 1.3 22.5
2002 07 25 15 28.03 -19 19.0 36.442 36.844 112.6 1.5 22.5
2002 08 04 15 27.89 -19 18.5 36.596 36.837 103.0 1.5 22.6
2002 08 14 15 27.92 -19 18.6 36.756 36.831 93.4 1.6 22.6
2002 08 24 15 28.14 -19 19.3 36.918 36.824 83.9 1.6 22.6
2002 09 03 15 28.54 -19 20.7 37.077 36.817 74.3 1.5 22.6
2002 09 13 15 29.11 -19 22.8 37.229 36.810 64.7 1.4 22.6
2002 09 23 15 29.84 -19 25.4 37.368 36.804 55.2 1.3 22.6
2002 10 03 15 30.72 -19 28.5 37.491 36.797 45.6 1.1 22.6
2002 10 13 15 31.73 -19 32.1 37.593 36.790 35.9 0.9 22.5
The above 2:3 Neptune-resonance orbit keeps the object more than 12 AU
from Neptune over a 14 000-year period.
Brian G. Marsden (C) Copyright 2002 MPC M.P.E.C. 2002-M45
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