MPEC 2011-Q21 : 2011 QG9
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M.P.E.C. 2011-Q21 Issued 2011 Aug. 24, 18:25 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
2011 QG9
Observations:
K11Q09G* C2011 08 22.35370 20 31 11.369-07 27 35.90 19.9 gLEQ021F51
K11Q09G C2011 08 22.36388 20 31 10.193-07 27 13.87 19.8 gLEQ021F51
K11Q09G C2011 08 22.40992 20 31 04.861-07 25 33.95 19.3 rLEQ021F51
K11Q09G KC2011 08 23.19356220 29 42.67 -06 57 05.6 18.8 VrEQ021H21
K11Q09G C2011 08 23.19398 20 29 43.06 -06 57 02.0 19.0 cEQ021704
K11Q09G IC2011 08 23.19896220 29 42.08 -06 56 53.6 18.8 VrEQ021H21
K11Q09G KC2011 08 23.20434420 29 41.48 -06 56 41.4 18.6 VrEQ021H21
K11Q09G C2011 08 23.20698 20 29 41.67 -06 56 32.8 19.8 cEQ021704
K11Q09G C2011 08 23.21994 20 29 40.12 -06 56 03.3 19.5 cEQ021704
K11Q09G C2011 08 23.23292 20 29 38.64 -06 55 35.9 19.0 cEQ021704
K11Q09G C2011 08 23.24646 20 29 37.09 -06 55 05.7 19.1 cEQ021704
K11Q09G C2011 08 23.26048 20 29 35.43 -06 54 35.2 19.2 cEQ021704
K11Q09G C2011 08 23.27336 20 29 33.95 -06 54 07.1 19.2 cEQ021704
K11Q09G C2011 08 23.28635 20 29 32.51 -06 53 38.1 19.4 cEQ021704
K11Q09G C2011 08 23.29920 20 29 31.05 -06 53 09.5 19.1 cEQ021704
K11Q09G `C2011 08 23.41104 20 29 21.05 -06 48 30.7 18.6 RuEQ021D90
K11Q09G `C2011 08 23.41792 20 29 20.27 -06 48 15.6 18.5 RuEQ021D90
K11Q09G `C2011 08 23.42434 20 29 19.58 -06 48 01.4 18.5 RuEQ021D90
K11Q09G `C2011 08 23.43075 20 29 18.83 -06 47 47.4 18.1 RuEQ021D90
K11Q09G KC2011 08 23.85087 20 28 34.03 -06 32 44.9 18.9 VuEQ021595
K11Q09G KC2011 08 23.86997 20 28 31.80 -06 32 02.4 uEQ021595
K11Q09G KC2011 08 24.19741320 27 57.23 -06 19 41.6 19.1 RuEQ021H36
K11Q09G KC2011 08 24.20636020 27 56.21 -06 19 21.5 19.1 RuEQ021H36
K11Q09G KC2011 08 24.21082420 27 55.73 -06 19 11.5 19.1 RuEQ021H36
Observer details:
595 Farra d'Isonzo. Observer 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. 1.0-m f/2.15
reflector + CCD.
D90 RAS Observatory, Moorook. Observer K. Hills. 0.41-m f/9 Ritchey-Chretien
+ CCD.
F51 Pan-STARRS 1, Haleakala. Observers N. Primak, A. Schultz, S. Watters,
J. Thiel, T. Goggia. Measurer PS1 Science Consortium. 1.8-m
Ritchey-Chretien + CCD.
H21 Astronomical Research Observatory, Westfield. Observer R. Holmes.
Measurers L. Buzzi, S. Foglia, T. Vorobjov. 0.61-m f/4.0 astrograph + CCD.
H36 Sandlot Observatory, Scranton. Observer G. Hug. 0.56-m reflector + CCD.
Orbital elements:
2011 QG9 Earth MOID = 0.1929 AU
Epoch 2011 Aug. 27.0 TT = JDT 2455800.5 MPC
M 347.72677 (2000.0) P Q
n 0.21721773 Peri. 73.19300 +0.90165116 -0.40432999
a 2.7407696 Node 310.37368 +0.27847476 +0.81427383
e 0.6081266 Incl. 11.61897 +0.33087308 +0.41650378
P 4.54 H 20.0 G 0.15 U 8
Residuals in seconds of arc
110822 F51 0.2- 0.1- 110823 704 0.1- 1.6+ 110823 D90 0.0 0.2-
110822 F51 0.2- 0.2- 110823 704 0.1+ 0.3+ 110823 D90 0.4+ 0.2-
110822 F51 0.2- 0.2- 110823 704 0.1+ 0.6+ 110823 D90 0.0 0.3-
110823 H21 0.0 0.4- 110823 704 0.7- 0.0 110823 595 0.1+ 0.9-
110823 704 0.6- 0.2+ 110823 704 0.7- 0.4- 110823 595 0.9- 1.2-
110823 H21 0.4+ 0.4- 110823 704 0.1- 0.2- 110824 H36 0.5- 0.2+
110823 H21 0.6+ 0.1- 110823 704 0.0 0.2- 110824 H36 0.5- 0.0
110823 704 0.9+ 0.8+ 110823 D90 0.1+ 0.1- 110824 H36 0.1- 0.1-
Ephemeris:
2011 QG9 a,e,i = 2.74, 0.61, 12 q = 1.0740
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2011 07 25 21 11 06.9 -19 01 34 0.5224 1.5291 166.8 8.7 20.1
...
2011 08 09 20 53 23.1 -14 12 21 0.4021 1.4149 174.8 3.7 19.1
...
2011 08 17 20 40 29.3 -10 28 19 0.3541 1.3567 164.2 11.7 19.1
...
2011 08 23 20 30 03.2 -07 03 54 0.3251 1.3149 155.9 18.3 19.1
2011 08 24 20 28 18.1 -06 26 49 0.3208 1.3081 154.5 19.4 19.1
2011 08 25 20 26 33.2 -05 48 54 0.3167 1.3013 153.1 20.6 19.1
...
2011 08 31 20 16 22.0 -01 44 44 0.2952 1.2622 144.7 27.5 19.1
...
2011 09 08 20 04 30.7 +04 19 54 0.2738 1.2139 134.0 36.7 19.1
...
2011 09 23 19 51 24.2 +17 07 00 0.2500 1.1388 116.9 51.8 19.2
A. U. Tomatic (C) Copyright 2011 MPC M.P.E.C. 2011-Q21
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