MPEC 1998-A17 : 1998 AK8
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M.P.E.C. 1998-A17 Issued 1998 Jan. 11, 21:14 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
1998 AK8
Observations:
J98A08K* C1998 01 09.21542 10 31 42.01 +09 06 22.3 17.6 V 910
J98A08K C1998 01 09.21936 10 31 42.17 +09 06 37.7 17.5 V 910
J98A08K C1998 01 09.22277 10 31 42.27 +09 06 50.6 17.8 V 910
J98A08K C1998 01 09.22564 10 31 42.36 +09 07 01.8 17.6 V 910
J98A08K C1998 01 09.23017 10 31 42.53 +09 07 19.6 17.7 V 910
J98A08K C1998 01 09.23290 10 31 42.61 +09 07 29.9 17.8 V 910
J98A08K C1998 01 09.23627 10 31 42.75 +09 07 42.9 910
J98A08K C1998 01 09.23877 10 31 42.86 +09 07 52.7 910
J98A08K C1998 01 09.99832 10 32 13.03 +09 57 24.1 17.3 V 910
J98A08K C1998 01 10.00046 10 32 13.10 +09 57 32.7 17.6 V 910
J98A08K C1998 01 10.00257 10 32 13.18 +09 57 40.6 17.3 V 910
J98A08K C1998 01 10.00468 10 32 13.24 +09 57 49.3 17.5 V 910
J98A08K C1998 01 10.00678 10 32 13.31 +09 57 57.5 17.5 V 910
J98A08K C1998 01 10.00889 10 32 13.37 +09 58 06.0 17.6 V 910
J98A08K C1998 01 10.01100 10 32 13.46 +09 58 14.0 17.5 V 910
J98A08K C1998 01 10.01310 10 32 13.53 +09 58 22.6 17.6 V 910
J98A08K C1998 01 10.01521 10 32 13.61 +09 58 30.9 17.4 V 910
J98A08K C1998 01 10.02808 10 32 14.05 +09 59 21.9 17.5 V 910
J98A08K C1998 01 10.03031 10 32 14.11 +09 59 30.9 17.5 V 910
J98A08K C1998 01 10.03253 10 32 14.18 +09 59 39.6 17.4 V 910
J98A08K C1998 01 10.03476 10 32 14.26 +09 59 48.2 17.4 V 910
J98A08K C1998 01 10.03698 10 32 14.34 +09 59 57.4 17.5 V 910
J98A08K C1998 01 10.03921 10 32 14.42 +10 00 06.0 17.4 V 910
J98A08K C1998 01 10.04142 10 32 14.49 +10 00 14.8 17.4 V 910
J98A08K C1998 01 10.04365 10 32 14.56 +10 00 23.7 17.5 V 910
J98A08K C1998 01 10.04587 10 32 14.64 +10 00 32.5 17.4 V 910
J98A08K C1998 01 10.05764 10 32 15.01 +10 01 18.8 17.3 R 611
J98A08K C1998 01 10.06366 10 32 15.19 +10 01 42.0 17.0 R 611
J98A08K C1998 01 10.07813 10 32 15.67 +10 02 39.3 17.2 R 611
J98A08K C1998 01 10.37366 10 32 26.87 +10 22 17.2 658
J98A08K C1998 01 10.37539 10 32 26.95 +10 22 24.4 658
J98A08K C1998 01 10.37854 10 32 27.10 +10 22 36.5 658
J98A08K C1998 01 10.87597 10 32 45.48 +10 56 02.9 17.0 V 046
J98A08K C1998 01 10.87743 10 32 45.55 +10 56 09.1 046
J98A08K C1998 01 10.87861 10 32 45.57 +10 56 13.6 046
J98A08K C1998 01 10.87980 10 32 45.63 +10 56 18.4 046
J98A08K C1998 01 10.88272 10 32 45.73 +10 56 31.0 046
J98A08K C1998 01 10.94318 10 32 47.87 +11 00 37.7 587
J98A08K C1998 01 10.95073 10 32 48.14 +11 01 07.8 587
J98A08K C1998 01 10.97583 10 32 48.93 +11 02 51.5 17.6 627
J98A08K C1998 01 10.97680 10 32 48.88 +11 02 53.7 17.4 V 557
J98A08K C1998 01 10.97824 10 32 48.94 +11 03 00.0 557
J98A08K C1998 01 10.98640 10 32 49.36 +11 03 36.0 17.5 627
J98A08K C1998 01 10.98992 10 32 49.32 +11 03 47.8 557
J98A08K C1998 01 10.99433 10 32 49.64 +11 04 06.3 17.2 627
J98A08K C1998 01 11.00486 10 32 49.86 +11 04 48.9 18.1 R 611
J98A08K C1998 01 11.00903 10 32 50.04 +11 05 07.4 18.0 R 611
J98A08K C1998 01 11.01319 10 32 50.14 +11 05 22.9 17.6 R 611
J98A08K C1998 01 11.01736 10 32 50.27 +11 05 40.8 17.5 R 611
J98A08K C1998 01 11.02153 10 32 50.41 +11 05 57.0 17.2 R 611
J98A08K C1998 01 11.02569 10 32 50.51 +11 06 13.6 17.3 R 611
J98A08K C1998 01 11.02986 10 32 50.68 +11 06 31.6 17.2 R 611
J98A08K C1998 01 11.03403 10 32 50.77 +11 06 47.6 17.6 R 611
J98A08K C1998 01 11.03819 10 32 50.92 +11 07 04.8 17.0 R 611
J98A08K C1998 01 11.04236 10 32 51.10 +11 07 22.7 16.4 R 611
J98A08K C1998 01 11.04653 10 32 51.21 +11 07 39.6 17.6 R 611
J98A08K C1998 01 11.05069 10 32 51.31 +11 07 56.2 17.4 R 611
J98A08K C1998 01 11.05486 10 32 51.46 +11 08 13.8 17.1 R 611
J98A08K C1998 01 11.05903 10 32 51.58 +11 08 30.0 16.8 R 611
J98A08K C1998 01 11.06319 10 32 51.71 +11 08 47.1 16.9 R 611
J98A08K C1998 01 11.06736 10 32 51.84 +11 09 04.4 16.9 R 611
J98A08K C1998 01 11.07153 10 32 51.97 +11 09 21.2 16.9 R 611
J98A08K C1998 01 11.07569 10 32 52.12 +11 09 38.6 16.7 R 611
J98A08K C1998 01 11.11653 10 32 53.32 +11 12 25.7 17.3 R 046
J98A08K C1998 01 11.11747 10 32 53.37 +11 12 29.6 046
J98A08K C1998 01 11.11833 10 32 53.39 +11 12 33.3 046
J98A08K C1998 01 11.15521 10 32 55.53 +11 15 04.2 784
J98A08K C1998 01 11.15990 10 32 55.67 +11 15 24.5 784
J98A08K C1998 01 11.16910 10 32 55.94 +11 16 01.5 784
J98A08K C1998 01 11.17622 10 32 56.16 +11 16 31.1 784
J98A08K C1998 01 11.18819 10 32 56.61 +11 17 19.2 784
J98A08K C1998 01 11.19340 10 32 56.75 +11 17 41.3 784
J98A08K C1998 01 11.19882 10 32 55.93 +11 18 02.4 17.3 V 557
J98A08K C1998 01 11.19983 10 32 56.97 +11 18 08.2 784
J98A08K C1998 01 11.20469 10 32 57.13 +11 18 27.4 784
J98A08K C1998 01 11.21510 10 32 57.48 +11 19 10.8 784
J98A08K C1998 01 11.22160 10 32 56.67 +11 19 35.8 557
J98A08K C1998 01 11.23523 10 32 57.12 +11 20 31.7 557
J98A08K C1998 01 11.23688 10 32 57.18 +11 20 38.2 557
J98A08K C1998 01 11.33545 10 33 01.11 +11 27 26.2 17.0 R 817
J98A08K C1998 01 11.33800 10 33 01.21 +11 27 37.0 17.1 R 817
J98A08K C1998 01 11.34465 10 33 01.39 +11 28 04.8 16.9 R 817
J98A08K C1998 01 11.35265 10 33 01.59 +11 28 36.8 17.2 R 817
J98A08K C1998 01 11.36288 10 33 02.51 +11 29 17.4 658
J98A08K C1998 01 11.36965 10 33 02.67 +11 29 45.9 658
J98A08K C1998 01 11.37145 10 33 02.78 +11 29 53.2 658
Observer details:
046 Klet. Observers J. Ticha, M. Tichy. Measurer M. Tichy. 0.57-m f/5.2
reflector + CCD.
557 Ondrejov. Observer L. Sarounova. 0.65-m f/3.6 reflector + CCD.
587 Sormano. Observers G. Ventre, P. Sicoli. 0.5-m reflector + CCD.
611 Starkenburg. Observers M. Busch, A. Seib, R. Stoss. 0.45-m f/4.4
reflector + CCD.
627 Blauvac. Observer R. Roy. 0.26-m f/4.7 reflector + CCD.
658 Dominion Astrophysical Observatory. Observer D. D. Balam. 1.82-m
reflector + CCD.
784 Stull Observatory, Alfred University. Observer J. S. Weaver. 0.81-m f/4
reflector + CCD.
817 Sudbury. Observer D. di Cicco. 0.41-m Schmidt-Cassegrain + CCD.
910 Caussols-ODAS. Observers A. Maury, D. Albanese, G. Hahn, M. Hoffmann.
Measurers A. Maury, G. Hahn, M. Hoffman. 0.9-m Schmidt + CCD.
Orbital elements:
1998 AK8
Epoch 1998 Jan. 7.0 TT = JDT 2450820.5 Williams
M 351.45899 (2000.0) P Q
n 0.40792859 Peri. 11.14995 -0.69165902 -0.40711704
a 1.8005836 Node 126.86105 +0.59193762 -0.79278284
e 0.1829029 Incl. 48.21000 +0.41378455 +0.45359793
P 2.42 H 16.5 G 0.15
From 86 observations 1998 Jan. 9-11.
Ephemeris:
1998 AK8 a,e,i = 1.80, 0.18, 48 q = 1.4713
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
1998 01 07 10 30.18 +06 48.8 0.640 1.477 129.8 30.8 17.7
1998 01 12 10 33.40 +12 13.6 0.599 1.474 136.1 27.6 17.5
1998 01 17 10 35.71 +18 27.5 0.567 1.473 142.2 24.2 17.2
1998 01 22 10 36.95 +25 22.4 0.545 1.472 147.1 21.3 17.1
1998 01 27 10 36.94 +32 41.2 0.535 1.471 149.7 19.8 17.0
1998 02 01 10 35.50 +40 00.4 0.537 1.471 148.9 20.2 17.0
1998 02 06 10 32.50 +46 55.3 0.551 1.472 145.2 22.5 17.1
1998 02 11 10 27.87 +53 06.6 0.575 1.474 139.8 25.6 17.3
1998 02 16 10 21.60 +58 23.6 0.608 1.476 133.8 28.9 17.5
1998 02 21 10 13.87 +62 43.7 0.648 1.478 128.0 31.8 17.8
1998 02 26 10 05.09 +66 09.5 0.692 1.482 122.5 34.3 18.0
1998 03 03 09 55.96 +68 47.2 0.740 1.486 117.4 36.3 18.2
1998 03 08 09 47.4 +70 43.9 0.790 1.490 112.9 37.9 18.4
1998 03 13 09 40.2 +72 07.2 0.842 1.495 108.8 39.0 18.6
1998 03 18 09 35.1 +73 03.5 0.893 1.500 105.1 39.8 18.7
1998 03 23 09 32.7 +73 38.3 0.944 1.507 101.8 40.4 18.9
1998 03 28 09 33.2 +73 55.6 0.994 1.513 98.8 40.7 19.0
1998 04 02 09 36.5 +73 58.7 1.043 1.520 96.2 40.8 19.1
1998 04 07 09 42.5 +73 49.8 1.090 1.528 93.8 40.8 19.2
1998 04 12 09 50.7 +73 30.5 1.136 1.536 91.6 40.7 19.3
1998 04 17 10 00.7 +73 01.7 1.179 1.544 89.7 40.5 19.4
1998 04 22 10 12.0 +72 23.9 1.220 1.553 87.9 40.3 19.5
1998 04 27 10 24.4 +71 37.4 1.260 1.562 86.4 40.0 19.6
1998 05 02 10 37.4 +70 42.5 1.297 1.571 85.0 39.7 19.6
1998 05 07 10 50.84 +69 39.7 1.332 1.581 83.8 39.4 19.7
1998 05 12 11 04.37 +68 29.0 1.365 1.591 82.7 39.0 19.7
1998 05 17 11 17.85 +67 10.7 1.396 1.602 81.7 38.7 19.8
1998 05 22 11 31.16 +65 44.9 1.426 1.612 80.9 38.3 19.8
1998 05 27 11 44.25 +64 11.9 1.453 1.623 80.1 38.0 19.9
1998 06 01 11 57.07 +62 32.0 1.480 1.634 79.5 37.6 19.9
1998 06 06 12 09.59 +60 45.6 1.505 1.645 78.9 37.2 20.0
1998 06 11 12 21.79 +58 53.0 1.529 1.657 78.4 36.9 20.0
1998 06 16 12 33.68 +56 54.5 1.552 1.668 77.9 36.5 20.1
1998 06 21 12 45.28 +54 50.5 1.575 1.680 77.5 36.2 20.1
1998 06 26 12 56.63 +52 41.3 1.598 1.692 77.1 35.9 20.1
1998 07 01 13 07.73 +50 27.6 1.621 1.704 76.7 35.5 20.2
1998 07 06 13 18.62 +48 09.8 1.644 1.715 76.3 35.2 20.2
1998 07 11 13 29.30 +45 48.6 1.668 1.727 75.8 34.8 20.2
1998 07 16 13 39.81 +43 24.4 1.692 1.739 75.3 34.4 20.3
1998 07 21 13 50.17 +40 57.8 1.718 1.751 74.8 34.1 20.3
1998 07 26 14 00.41 +38 29.6 1.745 1.763 74.2 33.7 20.3
1998 07 31 14 10.54 +36 00.3 1.773 1.775 73.5 33.3 20.4
1998 08 05 14 20.58 +33 30.7 1.803 1.787 72.7 32.8 20.4
1998 08 10 14 30.55 +31 01.5 1.834 1.799 71.9 32.4 20.5
1998 08 15 14 40.45 +28 33.2 1.867 1.810 70.9 31.9 20.5
1998 08 20 14 50.32 +26 06.6 1.903 1.822 69.9 31.4 20.5
1998 08 25 15 00.15 +23 42.1 1.940 1.833 68.7 30.9 20.6
1998 08 30 15 09.97 +21 20.4 1.979 1.845 67.5 30.4 20.6
1998 09 04 15 19.77 +19 02.0 2.019 1.856 66.1 29.8 20.7
1998 09 09 15 29.58 +16 47.4 2.061 1.867 64.7 29.2 20.7
1998 09 14 15 39.38 +14 36.8 2.105 1.878 63.1 28.5 20.7
Gareth V. Williams (C) Copyright 1998 MPC M.P.E.C. 1998-A17
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