MPEC 1999-C11: 1999 BY9
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M.P.E.C. 1999-C11 Issued 1999 Feb. 5, 21:11 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
1999 BY9
Observations:
J99B09Y C1999 01 22.82199 07 00 38.51 +20 53 42.7 18.2 120
J99B09Y C1999 01 22.84184 07 00 36.86 +20 53 43.2 120
J99B09Y* C1999 01 23.78787 06 59 23.69 +20 54 18.3 18.4 120
J99B09Y C1999 01 23.79848 06 59 22.83 +20 54 18.1 120
J99B09Y C1999 01 24.75491 06 58 10.44 +20 54 52.0 18.5 120
J99B09Y C1999 01 24.77891 06 58 08.43 +20 54 52.2 120
J99B09Y C1999 01 24.80419 06 58 06.47 +20 54 53.7 120
J99B09Y C1999 01 25.75730 06 56 56.19 +20 55 24.8 18.4 120
J99B09Y C1999 01 25.75977 06 56 56.04 +20 55 24.6 120
J99B09Y C1999 01 25.76649 06 56 55.39 +20 55 24.7 120
J99B09Y C1999 01 25.77516 06 56 54.85 +20 55 25.5 120
J99B09Y C1999 02 02.74253 06 48 33.90 +20 58 21.6 18.0 V 104
J99B09Y C1999 02 02.74722 06 48 33.64 +20 58 21.6 104
J99B09Y C1999 02 02.75208 06 48 33.37 +20 58 21.9 104
J99B09Y C1999 02 05.78264 06 46 13.17 +20 58 49.8 18.5 120
J99B09Y C1999 02 05.78972 06 46 12.66 +20 58 49.9 120
J99B09Y C1999 02 05.80623 06 46 12.17 +20 58 48.7 120
J99B09Y C1999 02 05.81726 06 46 11.49 +20 58 49.5 120
J99B09Y C1999 02 05.82762 06 46 10.90 +20 58 49.9 120
Observer details:
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.
120 Visnjan. Observers K. Korlevic, P. Korlevic, A. Ritosa, P. Radovan.
Measurer K. Korlevic. 0.41-m f/4.3 reflector + CCD.
Orbital elements:
1999 BY9
Epoch 1999 Jan. 22.0 TT = JDT 2451200.5 Williams
M 323.34205 (2000.0) P Q
n 0.39681216 Peri. 287.29571 -0.99956263 +0.02524983
a 1.8340566 Node 254.15325 -0.01715266 -0.91907169
e 0.3088420 Incl. 0.91695 -0.02409032 -0.39328065
P 2.48 H 17.5 G 0.15
From 19 observations 1999 Jan. 22-Feb. 5.
Ephemeris:
1999 BY9 a,e,i = 1.83, 0.31, 1 q = 1.2676
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
1999 02 01 06 50.12 +20 58.1 0.495 1.435 150.0 20.1 17.8
1999 02 11 06 43.49 +20 59.0 0.501 1.401 138.3 28.0 18.0
1999 02 21 06 43.32 +20 56.4 0.516 1.369 128.2 34.6 18.2
1999 03 03 06 49.94 +20 49.3 0.537 1.341 119.7 40.0 18.4
1999 03 13 07 02.73 +20 34.3 0.562 1.317 112.7 44.1 18.5
1999 03 23 07 20.88 +20 06.9 0.588 1.297 107.0 47.3 18.7
1999 04 02 07 43.44 +19 22.4 0.615 1.282 102.5 49.6 18.8
1999 04 12 08 09.42 +18 16.6 0.644 1.272 98.9 51.1 19.0
1999 04 22 08 37.99 +16 46.7 0.674 1.268 96.1 52.0 19.1
1999 05 02 09 08.34 +14 51.9 0.706 1.269 93.9 52.4 19.2
1999 05 12 09 39.71 +12 33.8 0.743 1.276 92.2 52.3 19.3
1999 05 22 10 11.55 +09 55.3 0.784 1.289 90.8 51.7 19.4
1999 06 01 10 43.40 +07 01.4 0.832 1.307 89.6 50.9 19.6
1999 06 11 11 14.91 +03 57.6 0.886 1.329 88.4 49.8 19.7
1999 06 21 11 45.92 +00 49.6 0.948 1.355 87.2 48.5 19.9
1999 07 01 12 16.32 -02 17.2 1.017 1.385 85.9 47.0 20.0
1999 07 11 12 46.08 -05 18.2 1.094 1.419 84.4 45.5 20.2
1999 07 21 13 15.25 -08 10.1 1.179 1.454 82.6 43.9 20.4
1999 07 31 13 43.89 -10 49.8 1.271 1.492 80.6 42.2 20.5
1999 08 10 14 12.04 -13 15.6 1.370 1.531 78.3 40.4 20.7
1999 08 20 14 39.82 -15 26.1 1.476 1.571 75.8 38.6 20.9
1999 08 30 15 07.24 -17 20.6 1.586 1.612 73.0 36.8 21.0
Gareth V. Williams (C) Copyright 1999 MPC M.P.E.C. 1999-C11
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