MPEC 1998-Q11 : 1998 QA1
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M.P.E.C. 1998-Q11 Issued 1998 Aug. 20, 21:22 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 QA1
Observations:
J98Q01A* C1998 08 19.37787 22 54 01.21 +20 57 20.2 18.3 704
J98Q01A C1998 08 19.38981 22 53 59.90 +20 57 15.5 18.7 704
J98Q01A C1998 08 19.40246 22 53 58.51 +20 57 09.7 18.6 704
J98Q01A C1998 08 19.41524 22 53 57.13 +20 57 03.9 18.1 704
J98Q01A C1998 08 19.42782 22 53 55.84 +20 56 58.2 18.2 704
J98Q01A C1998 08 19.82457 22 53 22.76 +20 54 04.1 557
J98Q01A C1998 08 19.83942 22 53 21.55 +20 54 03.5 17.2 V 596
J98Q01A C1998 08 19.83947 22 53 21.31 +20 53 58.5 17.2 V 557
J98Q01A C1998 08 19.84972 22 53 20.57 +20 53 59.2 596
J98Q01A C1998 08 19.86001 22 53 19.51 +20 53 55.0 596
J98Q01A C1998 08 19.86076 22 53 19.34 +20 53 50.5 16.3 R 611
J98Q01A C1998 08 19.86551 22 53 18.83 +20 53 48.7 16.7 R 611
J98Q01A C1998 08 19.88264 22 53 17.21 +20 53 42.7 16.5 R 611
J98Q01A C1998 08 20.00729 22 53 04.86 +20 53 02.0 17.8 V 620
J98Q01A C1998 08 20.02395 22 53 03.11 +20 52 54.3 620
J98Q01A C1998 08 20.03831 22 53 01.20 +20 52 41.7 17.7 V 046
J98Q01A C1998 08 20.04015 22 53 01.02 +20 52 40.9 046
J98Q01A C1998 08 20.04215 22 53 00.82 +20 52 40.0 046
J98Q01A C1998 08 20.04414 22 53 00.61 +20 52 39.1 046
J98Q01A C1998 08 20.05150 22 53 00.22 +20 52 42.6 620
J98Q01A C1998 08 20.11567 22 52 56.94 +20 52 08.1 734
J98Q01A C1998 08 20.11909 22 52 56.58 +20 52 06.9 734
J98Q01A C1998 08 20.12310 22 52 56.19 +20 52 05.0 734
J98Q01A C1998 08 20.33767 22 52 35.46 +20 50 44.2 670
J98Q01A C1998 08 20.34757 22 52 34.34 +20 50 40.6 16.7 V 670
J98Q01A C1998 08 20.36337 22 52 32.78 +20 50 33.7 670
J98Q01A C1998 08 20.37517 22 52 31.48 +20 50 27.8 17.1 V 670
J98Q01A C1998 08 20.83222 22 51 53.26 +20 46 54.8 108
J98Q01A C1998 08 20.83644 22 51 52.86 +20 46 52.3 108
J98Q01A C1998 08 20.84813 22 51 51.65 +20 46 47.8 108
J98Q01A C1998 08 20.85605 22 51 50.98 +20 46 43.4 17.2 V 108
Observer details:
046 Klet. Observers M. Tichy, Z. Moravec. Measurer M. Tichy. 0.57-m f/5.2
reflector + CCD.
108 Montelupo. Observers M. Tombelli, D. Guidetti, G. Forti. 0.30-m f/5.7
Schmidt-Cassegrain + CCD.
557 Ondrejov. Observer P. Pravec. 0.65-m f/3.6 reflector + CCD.
596 Colleverde di Guidonia. Observer V. S. Casulli. 0.40-m f/2.95 reflector
+ CCD.
611 Starkenburg. Observers M. Busch, P. Geffert, R. Stoss. 0.45-m f/4.4
reflector + CCD.
620 Observatorio Astronomico de Mallorca. Observers A. Lopez, R. Pacheco.
0.30-m f/3.3 Schmidt-Cassegrain + CCD.
670 Camarillo. Observer J. E. Rogers. 0.25-m Schmidt-Cassegrain + CCD.
704 Lincoln Laboratory ETS, New Mexico. Observers M. Blythe, F. Shelly,
M. Bezpalko. Measurers J. Stuart, H. Viggh, R. Sayer. 1.0-m f/2.15
reflector + CCD.
734 Farpoint Observatory. Observer G. Hug. 0.30-m Schmidt-Cassegrain + CCD.
Orbital elements:
1998 QA1 PHA 0.023A
Epoch 1998 Aug. 15.0 TT = JDT 2451040.5 Williams
M 15.41384 (2000.0) P Q
n 0.31668183 Peri. 332.89799 +0.04020937 +0.99134163
a 2.1316732 Node 299.17153 -0.88884247 -0.02166029
e 0.5386139 Incl. 8.23059 -0.45644524 +0.12950910
P 3.11 H 19.0 G 0.15
From 31 observations 1998 Aug. 19-20.
Ephemeris:
1998 QA1 a,e,i = 2.13, 0.54, 8 q = 0.9835
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
1998 08 15 23 01.31 +21 19.1 0.178 1.153 139.0 35.2 17.0
1998 08 20 22 53.09 +20 53.3 0.207 1.185 143.7 30.3 17.3
1998 08 25 22 46.24 +20 11.1 0.237 1.218 148.0 26.1 17.5
1998 08 30 22 40.66 +19 17.4 0.268 1.252 151.5 22.6 17.7
1998 09 04 22 36.28 +18 16.4 0.302 1.287 154.1 20.0 17.9
1998 09 09 22 33.03 +17 11.6 0.339 1.323 155.7 18.3 18.2
1998 09 14 22 30.85 +16 05.5 0.378 1.360 155.9 17.6 18.5
1998 09 19 22 29.69 +15 00.4 0.420 1.397 155.0 17.7 18.8
1998 09 24 22 29.51 +13 58.2 0.466 1.434 153.2 18.4 19.1
1998 09 29 22 30.25 +13 00.4 0.514 1.472 150.6 19.5 19.4
1998 10 04 22 31.84 +12 08.0 0.566 1.509 147.6 20.8 19.7
1998 10 09 22 34.17 +11 21.7 0.622 1.547 144.3 22.1 20.0
1998 10 14 22 37.17 +10 41.5 0.680 1.585 140.8 23.4 20.3
1998 10 19 22 40.77 +10 07.5 0.742 1.622 137.3 24.6 20.5
1998 10 24 22 44.91 +09 39.7 0.808 1.659 133.8 25.7 20.8
1998 10 29 22 49.54 +09 18.0 0.876 1.696 130.2 26.6 21.1
1998 11 03 22 54.58 +09 02.1 0.947 1.733 126.7 27.3 21.3
1998 11 08 22 59.99 +08 51.6 1.021 1.770 123.1 28.0 21.5
1998 11 13 23 05.71 +08 46.2 1.098 1.806 119.7 28.4 21.7
1998 11 18 23 11.71 +08 45.4 1.177 1.841 116.2 28.8 21.9
1998 11 23 23 17.96 +08 49.0 1.258 1.877 112.8 29.0 22.1
Gareth V. Williams (C) Copyright 1998 MPC M.P.E.C. 1998-Q11
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