MPEC 1999-D13 : 1999 DY2
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Read MPEC 1999-D12
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M.P.E.C. 1999-D13 Issued 1999 Feb. 22, 21:00 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 ISSN 1523-6714
1999 DY2
Observations:
J99D02Y* C1999 02 18.21169 10 23 13.62 +41 07 55.8 19.5 704
J99D02Y C1999 02 18.23301 10 23 17.01 +41 06 29.8 19.3 704
J99D02Y C1999 02 18.25449 10 23 20.49 +41 05 00.5 19.3 704
J99D02Y C1999 02 18.27573 10 23 23.98 +41 03 32.0 19.4 704
J99D02Y C1999 02 18.98433 10 25 34.80 +40 12 11.1 18.6 R 587
J99D02Y C1999 02 18.98801 10 25 35.36 +40 11 55.3 587
J99D02Y C1999 02 19.00309 10 25 37.39 +40 10 44.8 17.6 R 046
J99D02Y C1999 02 19.00441 10 25 37.54 +40 10 39.0 046
J99D02Y C1999 02 19.00568 10 25 37.75 +40 10 34.1 046
J99D02Y C1999 02 19.00703 10 25 38.04 +40 10 28.0 046
J99D02Y C1999 02 19.00787 10 25 38.13 +40 10 24.1 046
J99D02Y C1999 02 19.08951 10 25 51.40 +40 04 16.3 557
J99D02Y C1999 02 19.09079 10 25 51.62 +40 04 10.7 557
J99D02Y C1999 02 19.20120 10 26 17.99 +39 56 17.4 18.7 704
J99D02Y C1999 02 19.22228 10 26 21.42 +39 54 49.4 18.8 704
J99D02Y C1999 02 19.24333 10 26 24.69 +39 53 18.9 704
J99D02Y C1999 02 19.26429 10 26 27.82 +39 51 48.7 704
J99D02Y C1999 02 19.28511 10 26 31.20 +39 50 14.9 704
J99D02Y C1999 02 19.32278 10 26 36.82 +39 47 26.9 18.5 704
J99D02Y C1999 02 19.34379 10 26 39.98 +39 45 53.6 704
J99D02Y C1999 02 19.36486 10 26 43.27 +39 44 19.8 704
J99D02Y C1999 02 19.38584 10 26 46.60 +39 42 42.6 704
J99D02Y C1999 02 19.40673 10 26 49.71 +39 41 06.6 704
J99D02Y C1999 02 19.99085 10 28 40.45 +38 56 48.2 620
J99D02Y C1999 02 20.00983 10 28 43.44 +38 55 21.4 620
J99D02Y C1999 02 20.01967 10 28 44.98 +38 54 36.3 620
J99D02Y C1999 02 20.35403 10 29 44.51 +38 28 54.1 711
J99D02Y C1999 02 20.35766 10 29 45.08 +38 28 36.8 711
J99D02Y C1999 02 20.36138 10 29 45.64 +38 28 19.3 711
J99D02Y C1999 02 20.92337 10 31 30.51 +37 43 33.7 557
J99D02Y C1999 02 20.92465 10 31 30.75 +37 43 27.8 557
J99D02Y C1999 02 20.92594 10 31 30.94 +37 43 21.4 557
J99D02Y C1999 02 21.32227 10 32 40.73 +37 11 57.5 711
J99D02Y C1999 02 21.32591 10 32 41.02 +37 11 33.4 711
J99D02Y C1999 02 21.32937 10 32 41.35 +37 11 19.0 711
J99D02Y C1999 02 22.35791 10 35 43.55 +36 46 06.5 711
J99D02Y C1999 02 22.36149 10 35 44.07 +36 45 47.9 711
J99D02Y C1999 02 22.36547 10 35 44.65 +36 45 27.5 711
J99D02Y C1999 02 22.83516 10 37 12.11 +35 04 54.2 557
J99D02Y C1999 02 22.83633 10 37 12.29 +35 04 47.6 557
Observer details:
046 Klet. Observers M. Tichy, Z. Moravec. Measurer M. Tichy. 0.57-m f/5.2
reflector + CCD.
557 Ondrejov. Observers P. Pravec, L. Sarounova. 0.65-m f/3.6 reflector
+ CCD.
587 Sormano. Observers F. Manca, G. Ventre. 0.5-m reflector + CCD.
620 Observatorio Astronomico de Mallorca. Observers A. Lopez, R. Pacheco.
0.30-m f/3.3 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.
711 McDonald Observatory. Observers P. J. Shelus, J. G. Ries, J. L. Africano.
0.76-m reflector + CCD.
Orbital elements:
1999 DY2
Epoch 1999 Feb. 11.0 TT = JDT 2451220.5 Williams
M 355.83359 (2000.0) P Q
n 0.34042255 Peri. 160.93708 -0.89443977 -0.44685270
a 2.0313769 Node 352.45150 +0.39124538 -0.76319509
e 0.4603658 Incl. 7.57860 +0.21657459 -0.46675038
P 2.90 H 21.4 G 0.15
From 35 observations 1999 Feb. 18-22.
Ephemeris:
1999 DY2 a,e,i = 2.03, 0.46, 8 q = 1.0962
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
1999 02 21 10 31.71 +37 37.8 0.119 1.096 152.9 24.2 18.1
1999 02 26 10 46.11 +30 19.5 0.114 1.097 158.5 19.3 17.9
1999 03 03 10 59.08 +22 03.9 0.112 1.100 164.9 13.5 17.6
1999 03 08 11 10.45 +13 30.3 0.114 1.105 171.6 7.5 17.4
1999 03 13 11 20.28 +05 22.5 0.120 1.114 176.6 3.0 17.3
1999 03 18 11 28.77 -01 46.3 0.130 1.125 174.2 5.2 17.7
1999 03 23 11 36.23 -07 41.1 0.144 1.138 169.7 9.0 18.1
1999 03 28 11 42.95 -12 22.4 0.161 1.154 165.8 12.3 18.5
1999 04 02 11 49.17 -15 58.8 0.180 1.172 162.5 14.8 18.9
1999 04 07 11 55.04 -18 41.5 0.202 1.192 159.7 16.9 19.2
1999 04 12 12 00.74 -20 41.2 0.226 1.214 157.3 18.6 19.5
1999 04 17 12 06.44 -22 07.5 0.253 1.237 154.9 20.1 19.9
1999 04 22 12 12.27 -23 08.7 0.282 1.262 152.7 21.4 20.2
1999 04 27 12 18.33 -23 51.3 0.313 1.288 150.4 22.7 20.5
1999 05 02 12 24.61 -24 20.5 0.347 1.315 148.1 23.9 20.8
1999 05 07 12 31.13 -24 40.0 0.384 1.343 145.7 25.1 21.1
1999 05 12 12 37.90 -24 52.7 0.423 1.372 143.2 26.2 21.4
1999 05 17 12 44.92 -25 01.0 0.464 1.402 140.7 27.2 21.7
1999 05 22 12 52.21 -25 06.7 0.509 1.432 138.1 28.2 22.0
Gareth V. Williams (C) Copyright 1999 MPC M.P.E.C. 1999-D13
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