MPEC 1999-N20 : 1999 GK4
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M.P.E.C. 1999-N20 Issued 1999 July 12, 21:13 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
1999 GK4
Revision to MPEC 1999-G27
Observations:
J99G04K 5 1955 04 21.25625 12 37 38.18 +02 03 46.3 675
J99G04K 5 1955 04 21.29097 12 37 35.24 +02 04 13.0 675
J99G04K 5 1988 02 23.66297 14 03 38.79 -09 39 35.2 413
J99G04K 5 1988 02 23.74630 14 03 40.70 -09 39 28.4 413
Observer details:
413 Siding Spring. Trail located and measured by A. Gnadig and A. Doppler.
1.2-m U.K. Schmidt.
675 Palomar Mountain. Trail located and measured by A. Gnadig and A. Doppler.
1.2-m Oschin Schmidt.
Orbital elements:
1999 GK4 PHA 0.038
Epoch 1999 Aug. 10.0 TT = JDT 2451400.5 Williams
M 352.03986 (2000.0) P Q
n 0.35891616 Peri. 146.61037 +0.70854006 +0.70543062
a 1.9609840 Node 168.46797 -0.66591962 +0.67702861
e 0.4920418 Incl. 5.28136 -0.23349956 +0.20976154
P 2.75 H 16.1 G 0.15 U 3
Residuals in seconds of arc
550421 675 0.4- 1.0- 990415 428 0.3- 0.3- 990507 711 0.0 0.6-
550421 675 0.5+ 0.5+ 990415 422 0.2- 0.5- 990507 046 0.7+ 0.4+
880223 413 0.1+ 0.5+ 990415 422 0.2- 0.5- 990507 046 0.0 0.5+
880223 413 1.2- 0.2+ 990415 422 0.1- 0.5- 990507 046 0.0 0.5+
990217 910 0.2- 0.4- 990415 428 0.1+ 0.5- 990507 046 0.6+ 0.5+
990217 910 0.3- 0.5+ 990416 704 0.7- 0.1+ 990508 703 0.4+ 1.2+
990217 910 0.5+ 0.1+ 990416 704 0.4- 1.0- 990508 703 0.5- 0.3+
990325 699 0.4- 0.3+ 990416 704 0.2- 1.7- 990508 703 0.3+ 0.8+
990325 699 0.3- 0.6+ 990416 704 0.3- 1.1- 990508 703 0.6+ 0.2+
990325 699 0.4- 1.7+ 990416 704 (1.4- 2.2-) 990508 352 0.2- 1.1-
990411 699 0.6+ 0.3+ 990416 422 0.1+ 0.2- 990508 352 0.4- 1.3-
990411 699 0.2+ 0.5+ 990416 422 0.2+ 0.2- 990508 352 0.1- 1.1-
990411 699 0.6+ 0.2+ 990416 422 0.1+ 0.2- 990509 703 0.8+ 0.5+
990412 758 0.5+ 0.1- 990417 046 0.3+ 0.1+ 990509 703 0.0 0.7+
990412 758 0.4+ 0.4+ 990417 046 0.2+ 0.2+ 990509 726 1.7+ 1.7-
990412 758 0.7+ 0.7+ 990417 046 0.5+ 0.2- 990509 703 0.3+ 0.2+
990412 732 1.1- 0.0 990417 046 0.7+ 0.1- 990509 726 1.0+ 1.8-
990412 732 1.3- 0.2+ 990418 557 0.1+ 0.0 990509 726 0.9+ 1.9-
990412 732 0.8- 0.3+ 990418 557 0.2+ 0.1- 990509 703 0.1+ 0.6+
990412 859 0.6- 0.1+ 990418 104 0.3+ 0.2- 990509 610 0.6- 0.5-
990412 859 0.5- 0.2- 990418 557 0.1+ 0.0 990509 151 0.2- 1.1-
990412 859 0.6- 0.1- 990418 104 (2.2+ 0.8+) 990509 151 0.0 0.9-
990412 704 0.1- 0.1- 990419 118 0.1+ 0.2+ 990509 151 0.1+ 1.1-
990412 704 0.7- 0.5- 990419 118 0.5+ 0.2+ 990509 610 0.6- 0.5-
990412 719 0.6+ 1.0- 990419 118 0.5+ 0.0 990509 151 0.2+ 1.0-
990412 704 0.2- 0.2+ 990419 557 0.5+ 0.1- 990509 610 0.5- 0.6-
990412 719 0.0 1.1+ 990419 704 0.2+ 0.1+ 990509 151 (2.2+ 0.9-)
990412 704 0.2- 0.5- 990419 704 0.2+ 0.1- 990509 151 0.9- 0.0
990412 719 0.1- 0.3+ 990419 704 0.0 0.8+ 990509 610 0.6- 0.7-
990412 704 0.3+ 0.9- 990419 704 0.4- 0.1- 990509 610 0.5- 0.7-
990412 719 0.7+ 0.6+ 990419 704 0.4- 0.3+ 990509 118 0.3+ 0.4+
990412 719 0.2+ 0.2+ 990419 422 0.3+ 0.9- 990509 118 0.2+ 0.5+
990412 422 0.8- 0.1+ 990419 422 0.4+ 0.4- 990512 704 0.2+ 0.6-
990412 422 0.9- 0.2- 990419 422 0.3+ 0.5- 990512 704 0.9+ 0.2-
990412 422 0.6- 0.0 990419 557 0.2+ 0.2- 990512 704 0.1+ 0.3-
990412 422 0.5- 0.1- 990420 557 0.2+ 0.0 990512 704 0.1- 0.1+
990412 557 0.7- 0.0 990420 557 0.1+ 0.0 990512 704 0.7+ 0.2+
990412 557 0.1+ 0.1- 990420 557 0.1- 0.0 990512 360 0.3+ 0.3-
990412 118 0.2- 0.1- 990420 860 0.9- 0.8+ 990512 360 0.3+ 0.1-
990412 118 0.2- 0.2- 990420 860 0.2+ 1.3+ 990512 360 0.3+ 0.3-
990412 118 0.3- 0.4- 990420 860 0.5- 0.8+ 990513 610 0.5- 2.0-
990413 758 0.4+ 0.6+ 990420 900 0.1+ 0.1+ 990513 610 1.1+ 0.4-
990413 758 0.6+ 0.5+ 990420 900 0.0 0.0 990513 610 (2.7+ 1.2+)
990413 758 0.5+ 0.9+ 990420 557 0.4+ 0.1- 990514 952 0.0 0.2-
990413 428 0.7- 0.1- 990420 557 0.1+ 0.0 990515 952 0.9+ 0.2+
990413 426 0.0 0.5+ 990420 557 0.2+ 0.1- 990515 952 1.5+ 0.1-
990413 426 0.4+ 0.4+ 990421 557 0.0 0.1+ 990515 704 0.3- 0.8+
990413 426 0.1+ 0.3+ 990422 658 0.1- 0.6+ 990515 704 0.4- 0.4-
990413 422 0.5- 0.2+ 990422 658 0.2- 0.7+ 990515 704 0.1- 0.3-
990413 422 0.5- 0.2+ 990422 658 0.2- 0.9+ 990515 704 0.6- 0.2+
990413 422 0.4- 0.3+ 990423 557 0.6- 0.1- 990515 704 0.3+ 0.4-
990413 587 0.6- 0.0 990424 557 0.6- 0.1+ 990516 703 0.8+ 1.1+
990413 587 0.5- 0.1+ 990424 557 0.5- 0.0 990516 703 0.1+ 0.6+
990413 587 0.7- 0.0 990425 046 0.2+ 0.6+ 990516 703 0.7- 0.2+
990413 108 0.8- 1.3+ 990425 046 0.4+ 0.8+ 990516 703 1.0- 0.3-
990413 108 0.1+ 0.5+ 990425 046 0.1+ 0.7+ 990519 118 0.1- 0.4+
990413 108 0.5- 1.4+ 990425 046 0.1+ 0.5+ 990519 118 0.0 0.5+
990413 557 0.1+ 0.2+ 990426 046 0.6+ 0.4+ 990521 118 1.1+ 0.3+
990413 557 0.0 0.2+ 990426 046 0.5+ 0.5+ 990521 118 0.9+ 0.3+
990413 557 0.0 0.2+ 990501 151 0.5+ 0.1- 990523 658 0.2+ 0.4+
990414 758 0.1- 0.6- 990501 151 1.1- 0.4- 990523 658 0.0 0.7+
990414 758 0.1- 0.3+ 990501 151 0.5- 0.1- 990523 658 0.2+ 0.8+
990414 758 (0.3+ 3.2+) 990501 151 0.9- 0.1+ 990523 118 0.8- 0.5+
990414 758 0.3- 0.5+ 990501 151 0.4+ 0.9- 990523 118 0.1- 0.6+
990414 844 0.4+ 0.0 990501 151 0.4- 0.0 990528 118 0.2+ 0.1-
990414 844 0.7- 0.1+ 990504 151 0.2+ 1.2- 990528 118 0.9- 0.3+
990414 426 0.3+ 0.0 990504 151 0.6- 0.4- 990528 118 0.1- 0.4+
990414 426 0.4- 0.2+ 990504 151 1.4- 0.5- 990528 046 1.3+ 0.2+
990414 426 0.4+ 0.3- 990504 151 0.1- 1.0- 990528 046 0.5+ 0.4+
990414 903 0.3- 0.6- 990504 151 0.3- 0.6- 990528 046 1.1+ 0.1+
990414 903 0.7- 0.2- 990504 151 0.1- 1.1- 990528 046 0.7+ 0.2+
990414 903 0.3- 0.3- 990504 860 1.0- 1.2+ 990601 428 0.2- 1.3+
990414 046 1.0+ 0.4+ 990504 860 0.4- 0.7+ 990604 108 1.0+ 0.3-
990414 046 0.8+ 0.6+ 990504 860 1.1- 1.1+ 990604 108 (0.3+ 2.3-)
990414 046 0.9+ 0.6+ 990506 711 0.2+ 0.8- 990610 860 0.4- 0.4+
990414 046 0.8+ 0.6+ 990506 360 0.4+ 0.2- 990610 860 0.4+ 0.4+
990414 046 1.1+ 0.6+ 990506 360 0.5+ 0.3- 990610 860 0.0 0.3+
990415 844 0.3+ 0.2- 990506 360 0.4+ 0.4- 990612 428 0.2+ 0.5+
990415 844 0.1+ 0.1+ 990506 151 0.7- 1.6- 990612 428 0.2- 0.2+
990415 844 0.1- 0.1+ 990506 151 0.1+ 0.8- 990702 587 0.7- 0.3+
990415 704 0.6- 0.2+ 990506 151 0.4- 0.7- 990702 587 0.9- 0.5+
990415 704 0.6+ 0.6- 990506 151 0.4- 0.6- 990703 595 0.9- 0.1+
990415 704 0.2- 0.2- 990506 151 1.0+ 0.7- 990703 595 0.8- 0.3+
990415 704 0.8- 0.9+ 990506 151 1.0+ 0.4- 990703 595 0.0 0.1-
990415 704 0.1+ 0.4- 990507 711 0.1- 0.7-
Ephemeris:
1999 GK4 a,e,i = 1.96, 0.49, 5 q = 0.9961
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
1999 07 11 13 21.34 +02 49.1 0.587 1.169 89.4 60.4 17.4
1999 07 21 13 37.21 +00 55.7 0.567 1.114 84.4 65.2 17.4
1999 07 31 13 57.26 -01 23.9 0.538 1.068 80.5 69.7 17.3
1999 08 10 14 21.70 -04 09.7 0.501 1.031 77.7 73.9 17.3
1999 08 20 14 51.33 -07 23.7 0.459 1.007 76.2 77.5 17.1
1999 08 30 15 27.57 -11 07.5 0.415 0.996 76.3 79.9 17.0
1999 09 09 16 12.90 -15 18.4 0.373 1.001 78.3 80.3 16.8
1999 09 19 17 10.57 -19 36.5 0.339 1.019 82.7 78.0 16.5
1999 09 29 18 22.00 -23 04.6 0.322 1.050 89.6 72.5 16.3
1999 10 09 19 41.89 -24 21.4 0.327 1.093 97.8 64.9 16.2
1999 10 19 20 58.10 -22 56.5 0.359 1.144 105.2 57.2 16.2
1999 10 29 22 01.30 -19 44.9 0.416 1.202 110.2 50.8 16.5
1999 11 08 22 50.54 -15 57.2 0.494 1.266 112.5 46.3 16.8
1999 11 18 23 29.15 -12 12.1 0.590 1.332 112.6 43.2 17.2
1999 11 28 00 00.52 -08 42.9 0.700 1.400 111.1 41.1 17.7
1999 12 08 00 27.17 -05 31.4 0.823 1.469 108.4 39.5 18.1
1999 12 18 00 50.83 -02 35.9 0.956 1.539 104.9 38.2 18.5
1999 12 28 01 12.55 +00 05.3 1.100 1.608 100.9 36.9 18.8
2000 01 07 01 33.01 +02 34.1 1.251 1.676 96.4 35.7 19.2
2000 01 17 01 52.71 +04 51.6 1.409 1.743 91.7 34.3 19.5
2000 01 27 02 11.92 +06 58.6 1.572 1.808 86.8 32.9 19.8
2000 02 06 02 30.83 +08 55.5 1.739 1.872 81.8 31.4 20.0
2000 02 16 02 49.58 +10 42.8 1.907 1.934 76.7 29.8 20.2
2000 02 26 03 08.24 +12 20.3 2.075 1.995 71.5 28.1 20.4
2000 03 07 03 26.86 +13 48.3 2.242 2.053 66.2 26.3 20.6
2000 03 17 03 45.48 +15 06.6 2.405 2.110 61.0 24.4 20.8
Gareth V. Williams (C) Copyright 1999 MPC M.P.E.C. 1999-N20
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