MPEC 2001-Y16: 1999 YR14
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M.P.E.C. 2001-Y16 Issued 2001 Dec. 19, 23:00 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 YR14
Revision to MPEC 2000-A10
Observations:
J99Y14R tC2001 12 17.11558 23 10 38.60 +00 59 39.8 20.2 V 291
J99Y14R tC2001 12 17.12225 23 10 40.50 +00 59 54.7 20.4 V 291
J99Y14R HC2001 12 19.09544 23 20 32.67 +02 13 05.9 22.2 V 691
J99Y14R HC2001 12 19.09959 23 20 33.94 +02 13 15.0 21.0 V 691
J99Y14R HC2001 12 19.10422 23 20 35.22 +02 13 26.6 21.2 V 691
Observer details:
291 LPL/Spacewatch II. Observer J. A. Larsen. 1.8-m Spacewatch telescope.
691 Steward Observatory, Kitt Peak. Observer M. T. Read. 0.9-m
Spacewatch telescope.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
011217 291 0.15+ 0.10+ 011219 691 0.15+ 0.10+ MPC 39567 -0.15 day
Orbital elements:
1999 YR14 PHA 0.005A
Epoch 2001 Oct. 18.0 TT = JDT 2452200.5 MPC
M 349.76672 (2000.0) P Q
n 0.46345423 Peri. 9.33579 +0.97622022 -0.21675104
a 1.6537308 Node 3.18929 +0.19446613 +0.86824133
e 0.4006427 Incl. 3.72445 +0.09579666 +0.44629137
P 2.13 H 19.4 G 0.15 U 4
Residuals in seconds of arc
991231 699 0.6- 1.8+ 000102 954 0.6- 0.6- 000108 402 0.6+ 0.8+
991231 699 1.7+ 0.9+ 000102 954 0.6- 0.6- 000113 046 0.4+ 0.8+
991231 699 0.3+ 1.2+ 000102 954 0.6- 0.6- 000113 046 0.0 0.7-
000101 739 1.0- 1.4+ 000103 413 0.2- 0.0 000113 046 0.0 0.6-
000101 739 1.0+ 0.2+ 000103 413 0.1- 0.0 000113 046 0.2+ 0.0
000101 739 1.3- 0.9- 000103 587 0.7- 0.4+ 000115 587 0.5+ 0.1-
000101 461 0.3- 0.0 000103 954 0.5- 0.6- 000115 587 0.7- 0.2-
000101 461 0.0 0.0 000103 954 0.8- 0.8- 000124 658 0.2- 0.7+
000101 461 0.5- 0.2+ 000103 954 0.6- 0.9- 000124 658 0.0 0.2-
000101 461 0.4- 0.1- 000103 587 0.4- 0.1- 000207 413 0.4+ 0.7+
000102 104 2.0- 1.0- 000104 402 0.2+ 0.7- 000207 413 0.5+ 0.7+
000102 104 1.0+ 0.6- 000104 402 0.8+ 0.5- 000208 413 0.3+ 0.8+
000102 104 1.2+ 0.4+ 000104 402 0.2- 0.4- 000208 413 0.3+ 0.8+
000102 557 (2.3- 0.5-) 000104 402 0.1+ 0.1- 000210 711 (2.9+ 0.5+)
000102 557 (0.6- 2.2-) 000105 540 0.5+ 0.3+ 000210 711 (2.6+ 1.5+)
000102 557 0.1- 0.2- 000105 540 0.5+ 0.0 011217 291 0.5- 0.9+
000102 557 0.0 0.4- 000105 540 0.7+ 0.0 011217 291 1.6- 0.9+
000102 046 0.2+ 0.3- 000106 587 0.1- 0.9- 011219 691 0.4+ 0.7-
000102 046 0.0 0.9+ 000106 587 0.4+ 0.1+ 011219 691 1.1+ 0.8-
000102 046 0.1+ 0.3+ 000108 402 0.7- 0.4- 011219 691 0.1- 0.6+
000102 046 1.2+ 0.2+ 000108 402 0.3+ 0.4-
Ephemeris:
1999 YR14 a,e,i = 1.65, 0.40, 4 q = 0.9912
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2001 12 17 23 10.07 +00 55.5 0.543 1.072 83.8 65.9 20.6
2001 12 27 23 59.72 +06 57.6 0.570 1.115 87.5 61.8 20.6
2002 01 06 00 47.84 +12 20.9 0.616 1.164 90.4 57.7 20.8
2002 01 16 01 33.62 +16 48.5 0.680 1.217 92.2 53.9 21.0
2002 01 26 02 16.63 +20 17.2 0.759 1.273 92.8 50.6 21.2
2002 02 05 02 56.71 +22 52.2 0.853 1.330 92.4 47.8 21.5
2002 02 15 03 34.02 +24 42.0 0.959 1.389 91.0 45.3 21.8
2002 02 25 04 08.87 +25 55.0 1.074 1.447 88.9 43.1 22.0
2002 03 07 04 41.50 +26 38.3 1.198 1.505 86.3 41.1 22.3
Timothy B. Spahr (C) Copyright 2001 MPC M.P.E.C. 2001-Y16
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