[Iaude] MPEC A80: 2011 SR12 [a=2.02,e=0.80,i=12.1,H=19.6]
mpec at si.edu
mpec at si.edu
Fri Jan 13 09:19:44 EST 2017
M.P.E.C. 2017-A80 Issued 2017 Jan. 13, 14:15 UT
The Minor Planet Electronic Circulars contain information on unusual
minor planets and routine data on comets. They are published
on behalf of Division F 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 at CFA.HARVARD.EDU
URL http://www.minorplanetcenter.net/ ISSN 1523-6714
2011 SR12
Revision to MPEC 2011-S20
Additional Observations:
K11S12R C2017 01 12.32181 05 46 20.029-33 10 52.18 18.8 iLEA080F51
K11S12R C2017 01 12.34211 05 46 08.900-33 12 38.25 18.8 iLEA080F51
K11S12R C2017 01 12.35226 05 46 03.312-33 13 31.25 18.8 iLEA080F51
K11S12R IC2017 01 12.80308905 41 57.92 -33 52 23.0 18.9 GUEA080K92
K11S12R KC2017 01 12.80686605 41 55.76 -33 52 43.1 18.7 GUEA080K92
K11S12R KC2017 01 12.80915205 41 54.46 -33 52 55.4 18.9 GUEA080K92
K11S12R KC2017 01 12.81068105 41 53.59 -33 53 03.5 18.7 GUEA080K92
K11S12R KC2017 01 12.81672005 41 50.14 -33 53 35.3 18.4 GUEA080K92
K11S12R |C2017 01 13.44762 05 35 49.72 -34 48 56.5 18.7 RrEA080Q62
K11S12R |C2017 01 13.45599 05 35 44.66 -34 49 40.4 18.8 RrEA080Q62
K11S12R |C2017 01 13.46603 05 35 38.64 -34 50 34.4 18.7 RrEA080Q62
Observer details:
F51 Pan-STARRS 1, Haleakala. Observers B. Gibson, T. Goggia, S. Kahale,
T. Lowe, A. Schultz, M. Willman. Measurers K. Chambers, S. Chastel,
L. Denneau, H. Flewelling, M. Huber, E. Lilly, E. Magnier, R. Wainscoat,
C. Waters, R. Weryk. 1.8-m Ritchey-Chretien + CCD.
K92 Sutherland-LCOGT B. Observers T. Lister, S. Greenstreet, E. Gomez.
Measurer T. Lister. 1.0-m f/8 Ritchey-Chretien + CCD.
Q62 iTelescope Observatory, Siding Spring. Observers S. Foglia, L. Buzzi,
P. Concari, C. Cremaschini, G. Galli, M. Tombelli. 0.15-m f/7 refractor
+ CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
170112 F51 3.05+ 6.30- 170113 Q62 2.68+ 6.80- MPO211782 -2.7 day
Orbital elements:
2011 SR12 Earth MOID = 0.1502 AU
Epoch 2017 Feb. 16.0 TT = JDT 2457800.5 MPC
M 353.13782 (2000.0) P Q
n 0.34385143 Peri. 23.27309 -0.68845018 +0.72047239
a 2.0178497 Node 203.49409 -0.69397956 -0.68778499
e 0.8041303 Incl. 12.07597 -0.21078120 -0.08872056
P 2.87 H 19.6 G 0.15 U 2
Residuals in seconds of arc
110919 F51 0.0 0.2- 110920 I93 0.2- 0.1- 111019 291 1.0- 0.1-
110919 F51 0.2- 0.1- 110920 I93 0.1- 0.0 170112 F51 0.3- 0.1-
110919 F51 0.2- 0.1- 110921 I93 0.3+ 0.0 170112 F51 0.1- 0.0
110919 F51 0.2- 0.1+ 110921 291 0.3+ 0.5+ 170112 F51 0.2- 0.0
110920 291 0.2+ 0.4- 110921 291 0.1- 0.1+ 170112 K92 0.5+ 0.4+
110920 291 0.9- 1.4- 110921 291 0.3- 0.1+ 170112 K92 0.4+ 0.2+
110920 291 0.1- 0.1- 111001 291 0.3+ 0.2- 170112 K92 0.4+ 0.0
110920 568 0.0 0.1+ 111001 291 0.3+ 0.2- 170112 K92 0.4+ 0.1-
110920 568 0.1+ 0.1+ 111001 291 0.3+ 0.2- 170112 K92 0.2+ 0.0
110920 C75 0.5+ 0.5- 111018 291 0.4+ 1.0+ 170113 Q62 0.7+ 0.3-
110920 C75 0.4+ 0.5- 111018 291 0.2- 0.5+ 170113 Q62 0.2+ 0.3+
110920 B18 0.5+ 0.1- 111018 291 0.9- 0.6- 170113 Q62 0.4+ 0.4-
110920 B18 0.2+ 0.5- 111019 291 0.4+ 0.1+
110920 B18 0.0 0.7- 111019 291 0.5- 0.2-
Ephemeris:
2011 SR12 a,e,i = 2.02, 0.80, 12 q = 0.3952
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2016 12 14 07 29 40.5 -05 59 47 0.6617 1.5410 138.0 25.3 20.8
...
2016 12 29 07 02 45.4 -16 18 48 0.4407 1.3502 139.8 28.1 19.7
...
2017 01 06 06 30 24.3 -24 41 50 0.3462 1.2416 131.9 36.1 19.2
...
2017 01 12 05 49 09.6 -32 42 32 0.2903 1.1567 120.1 47.3 19.0
2017 01 13 05 40 07.1 -34 09 33 0.2825 1.1423 117.6 49.7 19.0
2017 01 14 05 30 17.9 -35 37 31 0.2752 1.1278 115.0 52.2 19.0
...
2017 01 20 04 11 38.4 -43 56 21 0.2437 1.0388 96.2 70.4 19.1
...
2017 01 28 01 40 14.4 -47 48 54 0.2395 0.9154 66.3 99.8 19.9
...
2017 02 12 22 28 08.8 -32 08 03 0.3499 0.6727 21.1 148.0 24.5
A. U. Tomatic (C) Copyright 2017 MPC M.P.E.C. 2017-A80
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