MPEC 2012-B20 : 2012 BB2
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M.P.E.C. 2012-B20 Issued 2012 Jan. 19, 23:21 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
MPC@CFA.HARVARD.EDU
URL https://www.minorplanetcenter.net/ ISSN 1523-6714
2012 BB2
Observations:
K12B02B* C2012 01 17.35739 07 06 22.89 +22 08 17.9 19.3 cEB020704
K12B02B C2012 01 17.37054 07 06 22.75 +22 09 10.0 19.2 cEB020704
K12B02B C2012 01 17.38363 07 06 22.50 +22 10 03.0 18.9 cEB020704
K12B02B C2012 01 17.39674 07 06 22.45 +22 10 54.7 19.1 cEB020704
K12B02B C2012 01 18.14109 07 06 25.40 +23 00 11.5 18.7 VoEB020G48
K12B02B C2012 01 18.14286 07 06 25.39 +23 00 19.1 18.2 VoEB020G48
K12B02B C2012 01 18.14465 07 06 25.41 +23 00 25.7 18.9 VoEB020G48
K12B02B |C2012 01 18.15074 07 06 24.14 +23 01 24.7 19.0 VoEB020807
K12B02B |C2012 01 18.15277 07 06 24.13 +23 01 32.8 19.0 VoEB020807
K12B02B |C2012 01 18.15888 07 06 24.06 +23 01 56.9 19.1 VoEB020807
K12B02B |C2012 01 18.16093 07 06 24.03 +23 02 04.9 19.0 VoEB020807
K12B02B C2012 01 18.22232 07 06 24.60 +23 05 33.5 18.7 cEB020704
K12B02B KC2012 01 18.23130907 06 24.06 +23 06 05.9 18.6 RuEB020H36
K12B02B KC2012 01 18.23366107 06 24.03 +23 06 15.2 18.5 RuEB020H36
K12B02B C2012 01 18.23542 07 06 24.48 +23 06 25.8 19.0 cEB020704
K12B02B KC2012 01 18.24709807 06 23.87 +23 07 08.0 18.5 RuEB020H36
K12B02B C2012 01 18.26154 07 06 24.12 +23 08 07.3 18.9 cEB020704
K12B02B KC2012 01 18.75333 07 06 26.25 +23 39 53.5 18.5 RuEB020104
K12B02B KC2012 01 18.75834 07 06 26.27 +23 40 13.0 18.2 RuEB020104
K12B02B KC2012 01 18.86146 07 06 25.57 +23 46 55.6 19.6 VuEB020595
K12B02B KC2012 01 18.90448 07 06 25.25 +23 49 43.5 19.6 VuEB020595
K12B02B C2012 01 18.97541 07 06 24.48 +23 54 14.4 18.5 RoEB020461
K12B02B C2012 01 18.97647 07 06 24.47 +23 54 18.1 18.6 RoEB020461
K12B02B C2012 01 18.97752 07 06 24.46 +23 54 22.8 18.6 RoEB020461
K12B02B C2012 01 18.97859 07 06 24.46 +23 54 26.3 18.6 RoEB020461
K12B02B C2012 01 18.98082 07 06 24.46 +23 54 35.2 18.2 RoEB020461
K12B02B C2012 01 18.98292 07 06 24.41 +23 54 43.5 18.4 RoEB020461
K12B02B C2012 01 18.98649 07 06 24.39 +23 54 57.4 18.6 RoEB020461
K12B02B C2012 01 18.98967 07 06 24.37 +23 55 09.0 18.8 RoEB020461
K12B02B |C2012 01 19.09112 07 06 26.30 +24 02 19.0 19.2 VoEB020807
K12B02B |C2012 01 19.09492 07 06 26.26 +24 02 33.7 19.6 VoEB020807
K12B02B |C2012 01 19.09870 07 06 26.21 +24 02 48.3 19.1 VoEB020807
K12B02B |C2012 01 19.10246 07 06 26.19 +24 03 02.8 19.1 VoEB020807
K12B02B KC2012 01 19.88527 07 06 28.86 +24 51 58.2 18.7 VuEB020J87
K12B02B KC2012 01 19.89241 07 06 28.82 +24 52 25.2 18.4 VuEB020J87
K12B02B KC2012 01 19.89957 07 06 28.73 +24 52 52.3 18.8 VuEB020J87
Observer details:
104 San Marcello Pistoiese. Observers P. Bacci, S. Vergari. Measurers
P. Bacci, L. Tesi, G. Fagioli. 0.60-m f/4 reflector + CCD.
461 University of Szeged, Piszkesteto Stn. (Konkoly). Observer K. Sarneczky.
1.02-m Ritchey-Chretien + CCD.
595 Farra d'Isonzo. Observers F. Bressan, E. Pettarin. Measurer E. Pettarin.
0.40-m f/4.5 reflector + CCD.
704 Lincoln Laboratory ETS, New Mexico. Observers M. Blythe, G. Spitz,
R. Brungard, J. Paige, P. Festler, T. McVey, A. Valdivia, C. Gall. 1.0-m
f/2.15 reflector + CCD.
807 Cerro Tololo. Observers R. Holmes, T. Linder, V. Hoette. Measurers
R. Holmes, T. Linder. 0.41-m f/11 Ritchey-Chretien + CCD.
G48 Doc Greiner Research Obs., Rancho Hildalgo. Observer M. Mills. 0.4-m
f/10 Schmidt-Cassegrain + CCD.
H36 Sandlot Observatory, Scranton. Observer G. Hug. 0.56-m reflector + CCD.
J87 La Canada. Observer J. Lacruz. 0.40-m Ritchey-Chretien + CCD.
Orbital elements:
2012 BB2 Earth MOID = 0.2391 AU
Epoch 2012 Mar. 14.0 TT = JDT 2456000.5 MPC
M 44.73519 (2000.0) P Q
n 0.45438855 Peri. 324.67329 +0.16612435 -0.94944286
a 1.6756544 Node 114.42290 +0.95861294 +0.09214653
e 0.2894958 Incl. 17.01153 +0.23122268 +0.30011210
P 2.17 H 20.6 G 0.15 U 7
Residuals in seconds of arc
120117 704 0.4+ 0.3- 120118 H36 0.0 0.2- 120118 461 0.0 0.4-
120117 704 0.5+ 0.4- 120118 H36 0.1- 0.2- 120118 461 0.2+ 0.0
120117 704 1.0- 0.6+ 120118 704 1.1+ 0.9+ 120118 461 0.3- 0.2+
120117 704 0.1+ 0.4+ 120118 H36 0.2- 0.1- 120118 461 0.2- 0.5+
120118 G48 0.6- 0.2- 120118 704 0.4+ 0.3- 120118 461 0.2- 0.1-
120118 G48 0.6- 0.3+ 120118 104 0.1- 0.1- 120119 807 0.1+ 0.2+
120118 G48 0.1- 0.2- 120118 104 0.3+ 0.3- 120119 807 0.1+ 0.2+
120118 807 0.2- 0.3- 120118 595 0.1- 0.2- 120119 807 0.1- 0.2+
120118 807 0.0 0.2- 120118 595 0.2+ 0.8+ 120119 807 0.1+ 0.1+
120118 807 0.1+ 0.1- 120118 461 0.1- 0.1- 120119 J87 0.2+ 0.0
120118 807 0.0 0.2- 120118 461 0.1- 0.5- 120119 J87 0.3+ 0.1-
120118 704 0.7+ 0.3+ 120118 461 0.1- 0.2+ 120119 J87 0.4- 0.1-
Ephemeris:
2012 BB2 a,e,i = 1.68, 0.29, 17 q = 1.1906
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2011 12 20 07 08 08.2 -10 43 10 0.2591 1.1960 140.8 31.3 19.4
...
2012 01 04 07 07 55.4 +05 46 59 0.2399 1.2145 162.7 13.9 18.7
...
2012 01 12 07 06 46.2 +15 50 23 0.2479 1.2293 171.8 6.6 18.5
...
2012 01 18 07 06 23.8 +22 51 01 0.2631 1.2425 168.2 9.4 18.8
2012 01 19 07 06 25.1 +23 56 00 0.2664 1.2448 166.9 10.3 18.9
2012 01 20 07 06 28.3 +24 59 16 0.2699 1.2472 165.7 11.2 18.9
...
2012 01 26 07 07 33.6 +30 39 43 0.2948 1.2626 157.9 17.1 19.4
...
2012 02 03 07 11 33.0 +36 26 17 0.3374 1.2852 148.4 23.7 19.9
...
2012 02 18 07 27 25.3 +42 36 12 0.4392 1.3334 134.5 31.9 20.8
A. U. Tomatic (C) Copyright 2012 MPC M.P.E.C. 2012-B20
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