MPEC 1998-U15 : 1998 UN1
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Read MPEC 1998-U14
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M.P.E.C. 1998-U15 Issued 1998 Oct. 21, 22:19 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 UN1
Observations:
J98U01N* C1998 10 19.09376 23 49 12.94 +35 29 08.0 19.1 704
J98U01N C1998 10 19.11401 23 49 14.04 +35 27 30.1 19.3 704
J98U01N C1998 10 19.13410 23 49 15.09 +35 25 52.3 18.5 704
J98U01N C1998 10 19.17459 23 49 17.26 +35 22 35.2 18.5 704
J98U01N C1998 10 20.05442 23 50 11.87 +34 10 45.7 557
J98U01N C1998 10 20.06256 23 50 12.32 +34 10 05.4 557
J98U01N C1998 10 20.11920 23 50 15.79 +34 05 27.0 17.8 V 046
J98U01N C1998 10 20.12058 23 50 15.82 +34 05 21.5 046
J98U01N C1998 10 20.12124 23 50 16.05 +34 05 16.7 046
J98U01N C1998 10 20.12191 23 50 15.99 +34 05 13.9 046
J98U01N C1998 10 20.13125 23 50 18.50 +34 04 33.6 658
J98U01N C1998 10 20.13583 23 50 18.75 +34 04 11.3 658
J98U01N C1998 10 20.14324 23 50 19.19 +34 03 35.6 658
J98U01N C1998 10 20.15545 23 50 20.35 +34 02 45.3 673
J98U01N C1998 10 20.16502 23 50 20.92 +34 01 59.8 18.0 V 673
J98U01N C1998 10 20.46975 23 50 39.57 +33 37 26.7 17.6 R 422
J98U01N C1998 10 20.47385 23 50 39.75 +33 37 07.0 17.7 R 422
J98U01N C1998 10 20.79295 23 51 00.63 +33 10 42.3 557
J98U01N C1998 10 20.79459 23 51 00.77 +33 10 34.4 18.2 V 557
J98U01N C1998 10 20.84694 23 51 03.79 +33 06 20.4 106
J98U01N C1998 10 20.85109 23 51 04.09 +33 05 58.6 106
J98U01N C1998 10 20.85464 23 51 04.11 +33 05 42.0 118
J98U01N C1998 10 20.86344 23 51 04.74 +33 05 00.5 118
J98U01N C1998 10 20.86676 23 51 04.84 +33 04 43.1 17.2 R 118
J98U01N C1998 10 20.88270 23 51 05.82 +33 03 24.0 106
J98U01N C1998 10 20.89105 23 51 06.39 +33 02 44.5 106
J98U01N C1998 10 20.94965 23 51 09.70 +32 57 57.5 17.9 V 046
J98U01N C1998 10 20.95053 23 51 09.75 +32 57 53.2 046
J98U01N C1998 10 20.95134 23 51 09.76 +32 57 48.4 046
J98U01N C1998 10 20.95209 23 51 09.80 +32 57 44.9 046
J98U01N C1998 10 21.16644 23 51 24.84 +32 40 21.9 673
J98U01N C1998 10 21.17736 23 51 25.49 +32 39 29.6 18.0 V 673
J98U01N C1998 10 21.50716 23 51 45.95 +32 13 06.2 422
J98U01N C1998 10 21.51567 23 51 46.57 +32 12 22.6 18.1 R 422
J98U01N SC1998 10 21.72253 23 52 01.10 +31 55 06.6 557
J98U01N SC1998 10 21.72441 23 52 01.21 +31 54 57.1 557
J98U01N C1998 10 21.72969 23 52 01.51 +31 54 34.1 18.0 V 104
J98U01N C1998 10 21.74523 23 52 02.57 +31 53 18.2 104
J98U01N C1998 10 21.75194 23 52 03.03 +31 52 47.7 104
J98U01N C1998 10 21.78355 23 52 04.69 +31 50 12.0 18.0 R 118
J98U01N C1998 10 21.78671 23 52 04.86 +31 49 55.9 118
J98U01N C1998 10 21.79050 23 52 05.10 +31 49 38.4 118
J98U01N C1998 10 21.81449 23 52 06.53 +31 47 40.2 557
J98U01N C1998 10 21.81579 23 52 06.62 +31 47 34.7 557
J98U01N C1998 10 21.81707 23 52 06.68 +31 47 28.3 557
Observer details:
046 Klet. Observers M. Tichy, Z. Moravec. Measurer M. Tichy. 0.57-m f/5.2
reflector + CCD.
104 San Marcello Pistoiese. Observer L. Tesi. Measurers G. Forti, L. Tesi.
0.40-m f/5 reflector + CCD.
106 Crni Vrh. Observers H. Mikuz, S. Maticic. 0.36-m f/6.7 Schmidt-Cassegrain
+ CCD.
118 Modra. Observers L. Kornos, D. Kalmancok. 0.6-m f/5.5 reflector + CCD.
422 Loomberah. Observer G. J. Garradd. 0.45-m f/5.4 reflector + CCD.
557 Ondrejov. Observers P. Pravec, L. Sarounova. 0.65-m f/3.6 reflector
+ CCD.
658 Dominion Astrophysical Observatory. Observer D. D. Balam. 1.82-m
reflector + CCD.
673 Table Mountain Observatory, Wrightwood. Observer D. L. Rabinowitz. 0.6-m
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.
Orbital elements:
1998 UN1
Epoch 1998 Oct. 14.0 TT = JDT 2451100.5 Williams
M 49.96392 (2000.0) P Q
n 0.53889625 Peri. 85.95499 +0.46744655 +0.82146903
a 1.4955443 Node 218.14511 -0.86068409 +0.50723842
e 0.2172775 Incl. 31.92513 +0.20178361 +0.26057209
P 1.83 H 18.0 G 0.15
From 45 observations 1998 Oct. 19-21.
Ephemeris:
1998 UN1 a,e,i = 1.50, 0.22, 32 q = 1.1706
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
1998 10 14 23 44.01 +42 18.3 0.408 1.337 140.2 28.5 17.9
1998 10 19 23 49.10 +35 36.9 0.410 1.352 144.8 25.1 17.9
1998 10 24 23 54.50 +28 51.7 0.420 1.367 147.4 23.1 17.9
1998 10 29 00 00.22 +22 23.4 0.438 1.383 147.4 22.8 18.0
1998 11 03 00 06.24 +16 28.9 0.465 1.398 145.0 24.0 18.2
1998 11 08 00 12.52 +11 17.7 0.499 1.414 141.1 26.1 18.4
1998 11 13 00 19.03 +06 53.0 0.539 1.430 136.5 28.5 18.7
1998 11 18 00 25.78 +03 13.5 0.585 1.445 131.7 30.7 19.0
1998 11 23 00 32.74 +00 15.3 0.635 1.461 127.1 32.6 19.2
1998 11 28 00 39.92 -02 07.1 0.689 1.476 122.6 34.3 19.5
1998 12 03 00 47.28 -03 58.7 0.746 1.492 118.3 35.6 19.7
1998 12 08 00 54.81 -05 24.7 0.805 1.507 114.3 36.5 19.9
1998 12 13 01 02.48 -06 29.2 0.865 1.522 110.6 37.3 20.1
1998 12 18 01 10.32 -07 15.7 0.928 1.537 107.0 37.8 20.3
1998 12 23 01 18.31 -07 47.2 0.991 1.552 103.6 38.0 20.5
1998 12 28 01 26.44 -08 06.4 1.055 1.566 100.4 38.2 20.6
1999 01 02 01 34.71 -08 15.3 1.119 1.580 97.3 38.1 20.8
1999 01 07 01 43.10 -08 15.7 1.183 1.594 94.3 38.0 20.9
1999 01 12 01 51.61 -08 09.0 1.247 1.607 91.4 37.7 21.0
1999 01 17 02 00.26 -07 56.5 1.311 1.621 88.7 37.4 21.1
1999 01 22 02 09.03 -07 39.2 1.374 1.633 86.0 36.9 21.3
1999 01 27 02 17.93 -07 18.0 1.437 1.646 83.4 36.5 21.4
1999 02 01 02 26.95 -06 53.7 1.498 1.658 80.9 35.9 21.4
1999 02 06 02 36.09 -06 27.0 1.559 1.670 78.5 35.4 21.5
1999 02 11 02 45.34 -05 58.5 1.618 1.681 76.1 34.7 21.6
1999 02 16 02 54.71 -05 28.6 1.677 1.692 73.8 34.1 21.7
1999 02 21 03 04.21 -04 57.9 1.734 1.703 71.6 33.4 21.7
1999 02 26 03 13.83 -04 26.7 1.790 1.713 69.4 32.7 21.8
1999 03 03 03 23.56 -03 55.5 1.844 1.723 67.2 32.0 21.9
1999 03 08 03 33.41 -03 24.6 1.896 1.732 65.1 31.3 21.9
1999 03 13 03 43.37 -02 54.2 1.948 1.741 63.1 30.6 22.0
Gareth V. Williams (C) Copyright 1998 MPC M.P.E.C. 1998-U15
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