MPEC 2007-H22 : 2006 QY110
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M.P.E.C. 2007-H22 Issued 2007 Apr. 19, 15:07 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 http://www.cfa.harvard.edu/iau/mpc.html ISSN 1523-6714
2006 QY110
Revision to MPEC 2006-R16
Additional Observations:
K06QB0Y C2007 04 11.37800 14 36 09.70 -17 51 20.7 EH022291
K06QB0Y C2007 04 11.38761 14 36 08.73 -17 51 14.1 EH022291
K06QB0Y C2007 04 11.40596 14 36 06.89 -17 51 01.7 EH022291
K06QB0Y C2007 04 15.30186 14 29 44.60 -17 06 40.3 EH022291
K06QB0Y C2007 04 15.30574 14 29 44.20 -17 06 37.6 EH022291
K06QB0Y C2007 04 15.30959 14 29 43.79 -17 06 34.9 EH022291
K06QB0Y C2007 04 16.39849 14 27 55.96 -16 53 55.5 EH022291
K06QB0Y C2007 04 16.40256 14 27 55.55 -16 53 52.9 EH022291
K06QB0Y C2007 04 16.40649 14 27 55.16 -16 53 49.9 EH022291
K06QB0Y C2007 04 18.28340 14 24 50.33 -16 31 48.7 20.7 V EH022291
K06QB0Y C2007 04 18.28763 14 24 49.90 -16 31 45.7 20.7 V EH022291
K06QB0Y C2007 04 18.29235 14 24 49.43 -16 31 42.2 20.8 V EH022291
K06QB0Y C2007 04 19.31762 14 23 08.59 -16 19 36.9 19.8 V EH022G96
K06QB0Y C2007 04 19.32366 14 23 08.01 -16 19 32.6 19.9 V EH022G96
K06QB0Y C2007 04 19.32963 14 23 07.40 -16 19 28.3 19.9 V EH022G96
K06QB0Y C2007 04 19.33560 14 23 06.79 -16 19 24.2 19.9 V EH022G96
Observer details:
291 LPL/Spacewatch II. Observers J. V. Scotti, M. T. Read, R. S. McMillan.
Measurer R. S. McMillan. 1.8-m f/2.7 reflector + CCD.
G96 Mt. Lemmon Survey. Observer R. E. Hill. Measurers E. C. Beshore,
E. J. Christensen, G. J. Garradd, A. R. Gibbs, A. D. Grauer, R. E. Hill,
R. A. Kowalski, S. M. Larson, R. H. McNaught. 1.5-m reflector + CCD.
Orbital elements:
2006 QY110 PHA, Earth MOID = 0.0327 AU
Epoch 2007 Apr. 10.0 TT = JDT 2454200.5 MPC
M 59.80838 (2000.0) P Q
n 0.36932463 Peri. 221.12173 +0.10600594 -0.99143556
a 1.9239651 Node 222.95540 +0.93909202 +0.12503758
e 0.5739897 Incl. 6.42702 +0.32690812 -0.03769783
P 2.67 H 18.2 G 0.15 U 4
Residuals in seconds of arc (or two decimals in units of degrees)
030723 608(1.89+ 0.57+) 060901 649 0.3+ 0.1+ 060927 448 0.3+ 0.0
030723 608(1.89+ 0.57+) 060901 673 0.2+ 0.1- 060927 448 0.1- 0.0
030813 608(1.81+ 0.56+) 060901 673 0.1+ 0.2- 060927 448 0.3- 0.3+
060830 704 0.3+ 0.9- 060901 673 0.1+ 0.1- 070411 291 0.2- 0.1-
060830 704 1.3- 0.1+ 060902 147 0.3- 0.4+ 070411 291 0.2- 0.1+
060830 704 0.7+ 0.7+ 060902 147 0.0 0.2- 070411 291 0.2- 0.2+
060830 704 0.9+ 0.0 060902 147 0.7- 0.1- 070415 291 0.0 0.4+
060831 204 0.6+ 0.2+ 060902 H36 0.7+ 0.4- 070415 291 0.1- 0.4+
060831 204 0.5+ 0.1+ 060902 H36 0.7+ 0.2+ 070415 291 0.3- 0.4+
060831 734 0.5+ 0.5- 060904 673 0.5- 0.3+ 070416 291 0.1+ 0.2-
060831 734 0.4- 0.1- 060904 673 0.4+ 0.1+ 070416 291 0.1+ 0.4-
060831 734 0.0 0.1- 060904 673 0.1- 0.1+ 070416 291 0.3+ 0.2-
060831 673 0.1- 0.1+ 060904 673 0.4- 0.1+ 070418 291 0.0 0.0
060831 673 0.2- 0.1+ 060905 H36 0.1+ 0.5- 070418 291 0.0 0.0
060831 673 0.1- 0.4- 060905 H36 0.1- 0.3+ 070418 291 0.1+ 0.2+
060831 673 0.3- 0.1- 060916 448 0.2+ 1.3+ 070419 G96 0.2+ 0.2-
060901 649 0.0 0.3- 060916 448 1.5- 0.6+ 070419 G96 0.7+ 0.1-
060901 649 (0.3- 3.3-) 060916 448 (1.6- 1.1-) 070419 G96 0.6+ 0.1-
060901 649 0.0 0.5+ 060924 291 0.4- 0.3+ 070419 G96 0.5+ 0.2-
060901 649 0.1- 0.0 060924 291 0.7+ 0.1+
Ephemeris:
2006 QY110 a,e,i = 1.92, 0.57, 6 q = 0.8196
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2007 04 20 14 22.03 -16 11.4 1.045 2.043 170.7 4.6 20.2
2007 04 30 14 06.51 -14 14.8 1.103 2.108 175.0 2.4 20.3
2007 05 10 13 53.55 -12 29.7 1.189 2.171 161.9 8.3 20.8
2007 05 20 13 44.05 -11 05.4 1.299 2.231 149.6 13.3 21.3
2007 05 30 13 38.25 -10 05.9 1.431 2.289 138.3 17.1 21.7
2007 06 09 13 35.89 -09 30.5 1.579 2.344 128.0 20.0 22.0
Comparison of the residuals shown above for the observations on 2003
July 23 and Aug. 13 with the residuals shown when the observations were first
published on MPEC 2006-R16 indicates a rather disturbing state of affairs.
The earlier residuals were remarkably consistent, given that the images
were obtained over a span of three weeks and were described as being "very
faint". The Minor Planet Center considers that it is unproductive and
unhelpful to potential follow-up observers when searches for very marginal
precovery images of a short-arc object are made in conjunction with
unrealistically precise orbital computations. Accordingly, these particular
observations are being removed from the MPC files.
Timothy B. Spahr (C) Copyright 2007 MPC M.P.E.C. 2007-H22
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