MPEC 2000-A30 : 1999 YT
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M.P.E.C. 2000-A30 Issued 2000 Jan. 9, 20:17 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.
Prepared using the Tamkin Foundation Computer Network
BMARSDEN@CFA.HARVARD.EDU or GWILLIAMS@CFA.HARVARD.EDU
URL http://cfa-www.harvard.edu/iau/mpc.html ISSN 1523-6714
1999 YT
Observations:
J99Y00T* C1999 12 16.36781 09 05 37.30 -02 04 27.8 18.0 704
J99Y00T C1999 12 16.38253 09 05 37.03 -02 03 55.0 18.3 704
J99Y00T C1999 12 16.39716 09 05 36.74 -02 03 22.3 17.8 704
J99Y00T C1999 12 16.41188 09 05 36.47 -02 02 49.4 18.3 704
J99Y00T C1999 12 16.42661 09 05 36.18 -02 02 16.9 18.1 704
J99Y00T C1999 12 17.35886 09 05 21.65 -01 27 09.3 17.8 704
J99Y00T C1999 12 17.37360 09 05 21.36 -01 26 35.0 19.2 704
J99Y00T C1999 12 17.38832 09 05 21.03 -01 26 01.7 18.1 704
J99Y00T C1999 12 17.40321 09 05 20.69 -01 25 27.8 17.6 704
J99Y00T C1999 12 17.41801 09 05 20.39 -01 24 54.1 18.4 704
J99Y00T C2000 01 05.30432 08 49 11.38 +13 12 55.2 17.7 704
J99Y00T C2000 01 05.31899 08 49 10.08 +13 13 41.1 18.3 704
J99Y00T C2000 01 05.33355 08 49 08.78 +13 14 26.8 18.0 704
J99Y00T C2000 01 05.34813 08 49 07.49 +13 15 12.4 18.1 704
J99Y00T C2000 01 05.36273 08 49 06.19 +13 15 58.2 18.0 704
J99Y00T C2000 01 06.15472 08 47 58.47 +13 57 30.5 557
J99Y00T C2000 01 06.15612 08 47 58.35 +13 57 34.9 557
J99Y00T C2000 01 06.15752 08 47 58.22 +13 57 39.1 17.5 V 557
J99Y00T C2000 01 06.15829 08 47 58.16 +13 57 41.9 17.1 R 046
J99Y00T C2000 01 06.15939 08 47 58.05 +13 57 45.3 046
J99Y00T C2000 01 06.16041 08 47 57.96 +13 57 48.7 046
J99Y00T C2000 01 06.16141 08 47 57.86 +13 57 51.6 046
J99Y00T C2000 01 06.29591 08 47 47.24 +14 04 59.6 17.9 704
J99Y00T C2000 01 06.31054 08 47 45.90 +14 05 45.9 17.9 704
J99Y00T C2000 01 06.32517 08 47 44.55 +14 06 32.5 16.5 704
J99Y00T C2000 01 06.33993 08 47 43.17 +14 07 19.0 16.7 704
J99Y00T 4C2000 01 06.35384 08 47 42.10 +14 07 59.8 673
J99Y00T C2000 01 06.35457 08 47 41.85 +14 08 05.2 16.9 704
J99Y00T 4C2000 01 06.37451 08 47 40.10 +14 09 05.7 673
J99Y00T WC2000 01 06.47131 08 47 31.05 +14 14 12.9 670
J99Y00T C2000 01 06.47521 08 47 30.99 +14 14 24.1 670
J99Y00T C2000 01 06.87075 08 46 57.29 +14 35 11.5 17.4 R 118
J99Y00T C2000 01 06.87311 08 46 57.06 +14 35 19.4 118
J99Y00T C2000 01 06.87634 08 46 56.77 +14 35 29.7 118
J99Y00T C2000 01 07.05608 08 46 40.30 +14 44 59.1 16.8 R 046
J99Y00T C2000 01 07.05729 08 46 40.19 +14 45 02.7 046
J99Y00T C2000 01 07.05803 08 46 40.13 +14 45 05.1 046
J99Y00T C2000 01 07.05881 08 46 40.04 +14 45 07.5 046
J99Y00T C2000 01 07.06115 08 46 39.81 +14 45 15.4 17.3 106
J99Y00T C2000 01 07.07969 08 46 38.10 +14 46 13.8 17.4 106
J99Y00T C2000 01 07.09718 08 46 36.48 +14 47 08.7 17.1 106
J99Y00T C2000 01 07.10199 08 46 36.07 +14 47 25.5 17.9 V 104
J99Y00T C2000 01 07.10435 08 46 35.85 +14 47 32.8 18.0 V 104
J99Y00T C2000 01 07.10544 08 46 35.77 +14 47 36.0 104
J99Y00T C2000 01 07.29536 08 46 19.58 +14 57 39.1 17.4 704
J99Y00T C2000 01 07.31015 08 46 18.19 +14 58 26.1 17.9 704
J99Y00T C2000 01 07.31767 08 46 17.54 +14 58 50.0 651
J99Y00T C2000 01 07.31955 08 46 17.37 +14 58 56.2 651
J99Y00T C2000 01 07.32165 08 46 17.16 +14 59 02.8 17.4 V 651
J99Y00T C2000 01 07.32489 08 46 16.78 +14 59 12.6 17.4 704
J99Y00T C2000 01 07.33957 08 46 15.43 +14 59 59.5 17.8 704
J99Y00T C2000 01 07.35422 08 46 14.05 +15 00 45.5 17.9 704
J99Y00T SC2000 01 07.35897 08 46 13.55 +15 01 01.3 711
J99Y00T SC2000 01 07.36305 08 46 13.16 +15 01 14.6 711
J99Y00T C2000 01 07.36534 08 46 13.16 +15 01 20.2 670
J99Y00T SC2000 01 07.36714 08 46 12.76 +15 01 27.2 711
J99Y00T C2000 01 07.41795 08 46 08.15 +15 04 07.0 670
J99Y00T C2000 01 07.57604 08 45 54.72 +15 12 24.7 17.0 V 348
J99Y00T C2000 01 07.58031 08 45 54.32 +15 12 39.4 348
J99Y00T C2000 01 07.70209 08 45 42.64 +15 19 05.5 17.1 V 900
J99Y00T C2000 01 07.71473 08 45 41.42 +15 19 45.7 900
J99Y00T C2000 01 08.25569 08 44 53.04 +15 48 15.9 17.5 678
J99Y00T C2000 01 08.25970 08 44 52.56 +15 48 29.4 17.0 678
J99Y00T C2000 01 08.27016 08 44 51.62 +15 49 03.4 17.0 678
J99Y00T C2000 01 08.30006 08 44 48.70 +15 50 37.9 17.7 704
J99Y00T C2000 01 08.31519 08 44 47.22 +15 51 25.6 17.8 704
J99Y00T C2000 01 08.33031 08 44 45.77 +15 52 13.1 18.2 704
J99Y00T C2000 01 08.33524 08 44 45.46 +15 52 29.0 670
J99Y00T C2000 01 08.34558 08 44 44.30 +15 53 01.4 17.8 704
J99Y00T C2000 01 08.38087 08 44 41.05 +15 54 53.0 670
J99Y00T IC2000 01 08.43304 08 44 35.96 +15 57 38.0 670
J99Y00T C2000 01 08.56481 08 44 24.44 +16 04 51.5 17.1 R 422
J99Y00T C2000 01 08.56595 08 44 24.35 +16 04 55.0 16.8 R 422
J99Y00T C2000 01 08.56721 08 44 24.22 +16 04 59.0 17.0 R 422
J99Y00T C2000 01 08.57559 08 44 23.55 +16 05 08.4 17.0 V 402
J99Y00T C2000 01 08.57684 08 44 23.43 +16 05 12.9 402
J99Y00T C2000 01 08.57810 08 44 23.32 +16 05 17.1 402
J99Y00T C2000 01 08.57936 08 44 23.19 +16 05 20.6 402
J99Y00T C2000 01 09.08823 08 43 35.02 +16 32 07.5 16.8 R 046
J99Y00T C2000 01 09.08961 08 43 34.88 +16 32 11.5 046
J99Y00T C2000 01 09.09051 08 43 34.83 +16 32 14.7 046
J99Y00T C2000 01 09.35428 08 43 10.62 +16 46 11.7 670
J99Y00T C2000 01 09.35979 08 43 09.79 +16 46 30.6 711
J99Y00T C2000 01 09.36385 08 43 09.37 +16 46 43.9 711
J99Y00T C2000 01 09.36781 08 43 08.98 +16 46 55.8 711
J99Y00T C2000 01 09.46789 08 42 59.15 +16 52 11.2 670
Observer details:
046 Klet. Observers J. Ticha, M. Tichy, Z. Moravec. 0.57-m f/5.2 reflector
+ CCD.
104 San Marcello Pistoiese. Observers L. Tesi, A. Boattini, M. Tombelli.
Measurers G. Forti, L. Tesi, A. Boattini, M. Tombelli. 0.40-m f/5
reflector + CCD.
106 Crni Vrh. Observer H. Mikuz. 0.36-m f/6.7 Schmidt-Cassegrain + CCD.
118 Modra. Observers A. Galad, J. Toth. 0.6-m f/5.5 reflector + CCD.
348 Ayabe. Observer N. Otuki. 0.28-m f/5.5 Schmidt-Cassegrain + CCD.
402 Dynic Astronomical Observatory. Observer A. Sugie. 0.60-m f/3.7 reflector
+ CCD.
422 Loomberah. Observer G. J. Garradd. 0.45-m f/5.4 reflector + CCD.
557 Ondrejov. Observer P. Kusnirak. 0.65-m f/3.6 reflector + CCD.
651 Grasslands Observatory, Tucson. Observer J. E. McGaha. 0.62-m f/5.1
reflector + CCD.
670 Camarillo. Observer J. E. Rogers. 0.30-m f/6.7 Helin Telescope + CCD.
673 Table Mountain Observatory, Wrightwood. Observer M. Hicks. 0.6-m
reflector + CCD.
678 Fountain Hills. Observer C. W. Juels. 0.313-m f/5.44 reflector + CCD.
704 Lincoln Laboratory ETS, New Mexico. Observers M. Blythe, F. Shelly,
M. Bezpalko, M. Elowitz, R. Huber. Measurers J. Stuart, H. Viggh,
R. Sayer, J. B. Evans. 1.0-m f/2.15 reflector + CCD.
711 McDonald Observatory. Observer J. G. Ries. 0.76-m reflector + CCD.
900 Moriyama. Observer Y. Ikari. 0.25-m f/6.3 reflector + CCD.
Orbital elements:
1999 YT
Epoch 1999 Dec. 28.0 TT = JDT 2451540.5 Williams
M 42.60225 (2000.0) P Q
n 0.41670989 Peri. 272.50377 +0.74181908 -0.48019013
a 1.7751982 Node 116.57220 +0.59321668 +0.79541425
e 0.3518790 Incl. 31.55989 -0.31272739 +0.36977507
P 2.37 H 16.7 G 0.15
From 86 observations 1999 Dec. 16-2000 Jan. 9.
Ephemeris:
1999 YT a,e,i = 1.78, 0.35, 32 q = 1.1505
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2000 01 07 08 46.76 +14 42.1 0.560 1.512 155.7 15.5 17.2
2000 01 12 08 38.89 +19 04.9 0.567 1.536 163.9 10.2 17.1
2000 01 17 08 30.25 +23 19.0 0.581 1.560 171.0 5.7 16.9
2000 01 22 08 21.28 +27 14.4 0.604 1.584 172.5 4.7 17.0
2000 01 27 08 12.42 +30 44.1 0.634 1.609 166.9 8.0 17.3
2000 02 01 08 04.12 +33 44.2 0.672 1.633 160.0 11.9 17.6
2000 02 06 07 56.78 +36 14.3 0.716 1.657 153.1 15.6 17.9
2000 02 11 07 50.71 +38 16.1 0.766 1.681 146.7 18.8 18.2
2000 02 16 07 46.11 +39 52.6 0.821 1.704 140.6 21.6 18.5
2000 02 21 07 43.04 +41 07.7 0.880 1.728 135.1 23.9 18.7
2000 02 26 07 41.47 +42 04.7 0.943 1.751 129.9 25.7 19.0
2000 03 02 07 41.36 +42 46.7 1.008 1.774 125.0 27.2 19.2
2000 03 07 07 42.59 +43 16.3 1.076 1.796 120.5 28.4 19.4
2000 03 12 07 45.05 +43 35.6 1.145 1.818 116.3 29.3 19.6
2000 03 17 07 48.60 +43 46.3 1.217 1.840 112.2 30.0 19.8
2000 03 22 07 53.11 +43 49.8 1.289 1.862 108.5 30.5 19.9
2000 03 27 07 58.45 +43 47.1 1.362 1.883 104.8 30.8 20.1
2000 04 06 08 11.16 +43 26.0 1.510 1.925 98.1 31.0 20.3
2000 04 16 08 25.98 +42 47.7 1.658 1.965 91.8 30.7 20.6
2000 04 26 08 42.24 +41 55.3 1.804 2.003 85.9 30.1 20.8
2000 05 06 08 59.49 +40 50.9 1.949 2.040 80.4 29.2 21.0
2000 05 16 09 17.36 +39 36.2 2.089 2.075 75.1 28.1 21.1
2000 05 26 09 35.58 +38 12.6 2.225 2.108 70.1 26.9 21.3
2000 06 05 09 53.96 +36 41.1 2.356 2.139 65.2 25.5 21.4
2000 06 15 10 12.39 +35 03.1 2.480 2.169 60.5 24.1 21.5
Gareth V. Williams (C) Copyright 2000 MPC M.P.E.C. 2000-A30
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