MPEC 1998-Y11: 1998 XQ16
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M.P.E.C. 1998-Y11 Issued 1998 Dec. 18, 17:24 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 XQ16
Observations:
J98X16Q* C1998 12 12.32064 06 43 34.56 +45 16 28.6 19.0 704
J98X16Q C1998 12 12.33472 06 43 34.56 +45 16 24.0 19.0 704
J98X16Q C1998 12 12.34874 06 43 34.77 +45 16 19.6 19.0 704
J98X16Q C1998 12 12.36271 06 43 34.55 +45 16 15.1 19.1 704
J98X16Q C1998 12 12.37665 06 43 34.97 +45 16 10.3 19.1 704
J98X16Q C1998 12 15.31470 06 44 17.65 +44 59 15.1 18.1 704
J98X16Q C1998 12 15.31479 06 44 17.52 +44 59 14.4 18.5 704
J98X16Q C1998 12 15.32954 06 44 17.64 +44 59 10.1 18.1 704
J98X16Q C1998 12 15.32963 06 44 17.49 +44 59 09.9 18.5 704
J98X16Q C1998 12 15.34435 06 44 17.63 +44 59 01.6 18.3 704
J98X16Q C1998 12 15.34444 06 44 17.67 +44 59 03.1 18.5 704
J98X16Q C1998 12 15.35910 06 44 17.63 +44 58 57.1 18.3 704
J98X16Q C1998 12 15.35919 06 44 17.87 +44 58 56.2 18.6 704
J98X16Q C1998 12 15.37415 06 44 17.81 +44 58 51.7 18.6 704
J98X16Q C1998 12 17.17876 06 44 34.15 +44 45 38.1 18.5 704
J98X16Q C1998 12 17.20206 06 44 34.22 +44 45 28.2 18.5 704
J98X16Q C1998 12 17.22531 06 44 34.01 +44 45 17.6 18.9 704
J98X16Q C1998 12 17.24842 06 44 34.05 +44 45 06.5 18.9 704
J98X16Q C1998 12 17.29320 06 44 33.93 +44 44 48.4 18.6 704
J98X16Q C1998 12 17.31632 06 44 33.82 +44 44 37.6 18.6 704
J98X16Q C1998 12 17.33956 06 44 33.61 +44 44 25.8 19.1 704
J98X16Q C1998 12 17.36270 06 44 33.60 +44 44 14.9 19.1 704
J98X16Q C1998 12 17.38574 06 44 33.53 +44 44 03.1 19.0 704
J98X16Q C1998 12 17.40837 06 44 33.41 +44 43 53.3 18.6 704
J98X16Q C1998 12 17.43102 06 44 33.28 +44 43 40.5 19.4 704
J98X16Q C1998 12 17.45376 06 44 33.29 +44 43 27.2 19.3 704
J98X16Q C1998 12 17.47652 06 44 33.37 +44 43 15.5 19.6 704
J98X16Q C1998 12 17.76008 06 44 37.17 +44 40 47.4 557
J98X16Q C1998 12 17.78325 06 44 37.23 +44 40 37.9 17.9 V 557
J98X16Q C1998 12 17.80800 06 44 37.28 +44 40 26.8 17.2 R 540
J98X16Q C1998 12 17.81453 06 44 37.27 +44 40 24.0 540
J98X16Q C1998 12 17.82103 06 44 37.28 +44 40 20.8 540
J98X16Q FC1998 12 17.82754 06 44 37.34 +44 40 18.5 540
J98X16Q C1998 12 17.97287 06 44 37.09 +44 39 10.8 17.4 V 046
J98X16Q C1998 12 17.97478 06 44 37.07 +44 39 10.1 046
J98X16Q C1998 12 17.97677 06 44 37.05 +44 39 09.0 046
J98X16Q C1998 12 17.97830 06 44 37.00 +44 39 08.2 118
J98X16Q C1998 12 17.98109 06 44 36.96 +44 39 06.9 118
J98X16Q C1998 12 17.98886 06 44 36.96 +44 39 02.9 17.0 R 118
J98X16Q C1998 12 18.18517 06 44 38.74 +44 37 24.1 734
J98X16Q C1998 12 18.19242 06 44 38.72 +44 37 20.8 734
J98X16Q C1998 12 18.19955 06 44 38.72 +44 37 16.8 734
Observer details:
046 Klet. Observers M. Tichy, Z. Moravec. Measurer M. Tichy. 0.57-m f/5.2
reflector + CCD.
118 Modra. Observers L. Kornos, P. Koleny. 0.6-m f/5.5 reflector + CCD.
540 Linz. Observer E. Meyer. 0.3-m f/5.2 Schmidt-Cassegrain + CCD.
557 Ondrejov. Observer P. Pravec. 0.65-m f/3.6 reflector + 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. Observers G. Hug. 0.30-m Schmidt-Cassegrain + CCD.
Orbital elements:
1998 XQ16
Epoch 1998 Dec. 13.0 TT = JDT 2451160.5 Williams
M 352.48137 (2000.0) P Q
n 0.26847078 Peri. 150.14873 -0.27967098 -0.95397913
a 2.3797867 Node 315.84087 +0.84725821 -0.19221927
e 0.4268033 Incl. 8.93528 +0.45159458 -0.23016424
P 3.67 H 18.0 G 0.15
From 42 observations 1998 Dec. 12-18.
Ephemeris:
1998 XQ16 a,e,i = 2.38, 0.43, 9 q = 1.3641
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
1998 12 13 06 43.77 +45 13.0 0.442 1.390 152.1 19.4 17.9
1998 12 23 06 44.56 +43 48.7 0.413 1.375 158.0 15.5 17.6
1999 01 02 06 43.05 +41 18.2 0.397 1.366 161.6 13.1 17.4
1999 01 12 06 41.92 +37 49.8 0.397 1.364 160.6 13.9 17.5
1999 01 22 06 43.47 +33 46.2 0.411 1.369 155.4 17.4 17.7
1999 02 01 06 48.98 +29 36.6 0.441 1.380 148.4 22.0 18.0
1999 02 11 06 58.40 +25 43.6 0.485 1.398 141.2 26.2 18.3
1999 02 21 07 11.15 +22 17.9 0.541 1.422 134.5 29.7 18.7
1999 03 03 07 26.52 +19 20.6 0.610 1.451 128.4 32.4 19.1
1999 03 13 07 43.69 +16 47.7 0.690 1.485 122.7 34.3 19.5
1999 03 23 08 02.11 +14 33.1 0.779 1.523 117.5 35.5 19.8
1999 04 02 08 21.32 +12 31.2 0.879 1.564 112.7 36.1 20.2
1999 04 12 08 40.94 +10 37.3 0.986 1.609 108.0 36.3 20.5
1999 04 22 09 00.75 +08 48.0 1.102 1.656 103.5 36.2 20.8
1999 05 02 09 20.57 +07 00.8 1.226 1.705 99.0 35.7 21.1
1999 05 12 09 40.27 +05 14.3 1.355 1.755 94.7 35.0 21.3
1999 05 22 09 59.80 +03 27.5 1.490 1.806 90.3 34.1 21.6
1999 06 01 10 19.10 +01 39.9 1.630 1.858 86.0 33.0 21.8
1999 06 11 10 38.16 -00 08.4 1.774 1.911 81.6 31.7 22.0
Gareth V. Williams (C) Copyright 1998 MPC M.P.E.C. 1998-Y11
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