MPEC 1999-Q14: 1995 QX9
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M.P.E.C. 1999-Q14 Issued 1999 Aug. 26, 14:38 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
URL http://cfa-www.harvard.edu/iau/mpc.html ISSN 1523-6714
1995 QX9
Revision to MPEC 1995-T07
Observations:
J95Q09X 1C1999 08 03.43549 16 52 03.96 -21 58 19.3 413
J95Q09X 1C1999 08 20.47553 17 05 30.44 -24 44 44.0 413
J95Q09X 1C1999 08 20.47795 17 05 30.60 -24 44 45.4 413
J95Q09X 1C1999 08 20.48361 17 05 31.00 -24 44 48.7 413
J95Q09X 1C1999 08 21.48916 17 06 45.80 -24 54 21.8 413
Observer details:
413 Siding Spring. Observers R. H. McNaught. 1.0-m f/8 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
990803 413 0.16+ 0.05- 990821 413 0.15+ 0.05- MPC 26582 -0.24 day
Orbital elements:
1995 QX9
Epoch 1999 Aug. 10.0 TT = JDT 2451400.5 Williams
M 341.82573 (2000.0) P Q
n 0.23850970 Peri. 229.61653 +0.91215242 +0.38589532
a 2.5751272 Node 107.27975 -0.31838697 +0.87930560
e 0.4374631 Incl. 8.31378 -0.25808468 +0.27911731
P 4.13 H 17.3 G 0.15 U 2
Residuals in seconds of arc
950818 413 0.4+ 1.1- 951020 413 0.1+ 0.6- 960109 413 0.4+ 0.7-
950818 413 0.7+ 0.0 951020 413 1.1+ 1.0- 960110 413 0.8+ 0.8-
950922 413 0.0 0.5+ 951029 413 1.1- 0.7+ 960110 413 0.5+ 1.2-
950922 413 1.7- 0.9+ 951029 413 1.1- 0.9+ 960110 413 1.6+ 0.7-
951012 413 (2.8- 2.5-) 951030 413 0.9- 0.9+ 960110 413 0.7- 0.9-
951012 413 (3.5- 3.5-) 951030 413 0.9- 0.7+ 990803 413 0.7- 0.6-
951016 104 1.0+ 0.1+ 951208 413 1.0- 1.3+ 990820 413 0.3+ 0.1+
951016 104 0.8+ 0.0 951208 413 0.1- 1.9+ 990820 413 0.2+ 0.0
951016 104 0.4+ 0.4- 960109 413 0.7+ 1.0- 990820 413 0.3+ 0.1-
951019 413 0.1- 0.3- 960109 413 0.2+ 0.7- 990821 413 0.4- 0.4-
951019 413 0.0 0.1- 960109 413 1.3+ 1.0-
Ephemeris:
1995 QX9 a,e,i = 2.58, 0.44, 8 q = 1.4486
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
1999 08 20 17 04.94 -24 40.2 0.897 1.574 110.9 36.9 19.5
1999 08 30 17 19.23 -26 12.2 0.936 1.541 104.6 39.4 19.7
1999 09 09 17 37.95 -27 33.6 0.978 1.512 99.2 41.1 19.8
1999 09 19 18 00.70 -28 38.7 1.022 1.488 94.5 42.3 19.9
1999 09 29 18 26.91 -29 21.9 1.067 1.470 90.5 43.0 19.9
1999 10 09 18 55.92 -29 37.9 1.114 1.457 87.0 43.2 20.0
1999 10 19 19 27.05 -29 22.8 1.165 1.450 83.9 43.1 20.1
1999 10 29 19 59.46 -28 34.2 1.219 1.449 81.2 42.6 20.2
1999 11 08 20 32.39 -27 12.2 1.278 1.454 78.6 41.9 20.3
1999 11 18 21 05.19 -25 18.8 1.342 1.466 76.3 40.9 20.4
1999 11 28 21 37.30 -22 58.3 1.413 1.483 74.0 39.7 20.5
1999 12 08 22 08.39 -20 15.9 1.490 1.506 71.7 38.4 20.6
1999 12 18 22 38.31 -17 17.4 1.575 1.533 69.3 36.9 20.7
1999 12 28 23 06.99 -14 08.7 1.667 1.565 66.7 35.2 20.8
2000 01 07 23 34.50 -10 55.0 1.765 1.602 64.1 33.5 21.0
2000 01 17 00 00.95 -07 40.8 1.870 1.641 61.2 31.7 21.1
Gareth V. Williams (C) Copyright 1999 MPC M.P.E.C. 1999-Q14
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