MPEC 2009-M23 : 2008 QD4
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Read MPEC 2009-M22
M.P.E.C. 2009-M23 Issued 2009 June 23, 14:41 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
2008 QD4
Revision to MPEC 2008-T122
Additional Observations:
K08Q04D C2009 06 10.14251 00 35 03.95 +24 02 37.0 19.5 V EM023J75
K08Q04D C2009 06 23.12297 00 39 35.28 +25 48 50.0 19.6 V EM023J75
K08Q04D C2009 06 23.12958 00 39 35.42 +25 48 53.0 19.5 V EM023J75
K08Q04D C2009 06 23.13619 00 39 35.55 +25 48 56.2 19.7 V EM023J75
Observer details:
J75 OAM Observatory, La Sagra. Observers S. Sanchez, J. Nomen, R. Stoss,
A. Cikota, S. Cikota, J. Rodriguez. 0.40-m f/10 reflector + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc, reference and Delta-T
090610 J75 1.6+ 0.0 090623 J75 1.0+ 0.0 MPO151071 +0.010 day
Orbital elements:
2008 QD4
Epoch 2009 June 18.0 TT = JDT 2455000.5 MPC
M 342.57697 (2000.0) P Q
n 0.04027794 Peri. 68.78363 +0.53199596 -0.82807688
a 8.4286471 Node 344.68205 +0.27692607 +0.36750218
e 0.3543984 Incl. 42.01829 +0.80018263 +0.42335662
P 24.47 H 11.3 G 0.15 U 2
Residuals in seconds of arc
080825 J75 0.3+ 0.2- 080929 704 0.2+ 0.1+ 081022 461 0.0 0.0
080825 J75 0.7+ 0.6- 081001 J75 0.0 0.1+ 081022 461 0.0 0.1+
080825 J75 0.2- 1.4- 081001 J75 0.1+ 0.0 081031 G96 0.2+ 0.2-
080826 620 0.2- 0.4- 081001 J75 0.0 0.1+ 081031 G96 0.0 0.1-
080826 620 0.3- 0.2- 081001 620 0.1- 0.2- 081031 G96 0.1+ 0.1-
080826 620 0.1- 0.5- 081001 620 0.1- 0.1+ 081031 G96 0.1- 0.2-
080906 683 0.9- 1.6+ 081001 620 0.2- 0.0 081108 291 0.0 0.1+
080906 683 0.6- 0.3+ 081001 620 0.1+ 0.4+ 081108 291 0.0 0.1-
080921 703 0.1- 0.5+ 081002 J86 0.0 0.1- 081108 291 0.1- 0.0
080921 703 0.4+ 0.1+ 081002 J86 0.0 0.1- 081128 461 0.1+ 0.1+
080921 703 0.1- 0.2+ 081002 J86 0.0 0.1- 081128 461 0.4- 0.4+
080921 703 0.2- 0.0 081002 J86 0.1+ 0.1- 081223 461 0.3+ 0.1+
080923 683 1.0+ 1.0+ 081002 J86 0.0 0.1- 081223 461 0.6- 0.0
080923 683 0.9- 0.0 081008 703 0.2- 0.4- 090101 G96 0.1- 0.1-
080923 683 0.6- 0.6+ 081008 703 0.8+ 0.0 090101 G96 0.2+ 0.2-
080925 683 0.9+ 0.4+ 081008 703 1.1+ 0.1- 090101 G96 0.2- 0.1-
080925 683 0.6+ 2.0- 081008 703 0.2- 0.2- 090101 G96 0.0 0.1-
080929 704 0.3+ 0.5+ 081019 A74 0.1- 0.0 090610 J75 0.8+ 0.2-
080929 704 0.2+ 0.8+ 081019 A74 0.4- 0.0 090623 J75 0.5- 0.2+
080929 704 0.1- 0.1+ 081019 A74 0.1- 0.1+ 090623 J75 0.1- 0.1-
080929 704 0.4- 0.0 081022 461 0.0 0.0 090623 J75 0.1+ 0.1-
Ephemeris:
2008 QD4 a,e,i = 8.43, 0.35, 42 q = 5.4415
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2009 06 18 00 37.97 +25 07.0 6.037 5.755 69.2 9.5 19.6
2009 06 28 00 40.91 +26 28.4 5.883 5.741 77.0 9.9 19.6
2009 07 08 00 42.91 +27 48.4 5.726 5.728 85.0 10.2 19.5
2009 07 18 00 43.86 +29 06.0 5.568 5.715 93.2 10.2 19.5
2009 07 28 00 43.63 +30 20.2 5.414 5.702 101.4 10.1 19.4
2009 08 07 00 42.15 +31 29.3 5.267 5.690 109.7 9.7 19.3
2009 08 17 00 39.38 +32 31.9 5.131 5.677 118.0 9.1 19.2
2009 08 27 00 35.36 +33 25.9 5.010 5.665 126.2 8.3 19.1
2009 09 06 00 30.21 +34 09.7 4.907 5.653 133.9 7.4 19.1
2009 09 16 00 24.13 +34 41.6 4.827 5.642 140.8 6.5 19.0
2009 09 26 00 17.45 +35 00.7 4.771 5.631 146.1 5.7 18.9
2009 10 06 00 10.57 +35 07.0 4.741 5.620 148.8 5.3 18.9
2009 10 16 00 03.91 +35 01.4 4.739 5.609 148.1 5.4 18.9
2009 10 26 23 57.90 +34 45.8 4.763 5.599 144.2 6.0 18.9
2009 11 05 23 52.88 +34 23.2 4.812 5.589 138.0 6.8 19.0
2009 11 15 23 49.12 +33 56.7 4.885 5.579 130.6 7.7 19.0
2009 11 25 23 46.78 +33 29.6 4.977 5.570 122.5 8.6 19.1
2009 12 05 23 45.92 +33 04.8 5.085 5.561 114.1 9.3 19.2
2009 12 15 23 46.51 +32 44.9 5.204 5.552 105.7 9.8 19.2
2009 12 25 23 48.48 +32 31.6 5.331 5.544 97.4 10.1 19.3
2010 01 04 23 51.74 +32 26.1 5.462 5.535 89.2 10.2 19.4
2010 01 14 23 56.14 +32 29.2 5.592 5.528 81.2 10.1 19.4
2010 01 24 00 01.56 +32 41.1 5.719 5.520 73.5 9.8 19.4
2010 02 03 00 07.87 +33 01.8 5.839 5.513 66.1 9.4 19.5
2010 02 13 00 14.95 +33 30.9 5.949 5.506 59.0 8.8 19.5
2010 02 23 00 22.69 +34 08.0 6.048 5.500 52.3 8.2 19.5
2010 03 05 00 30.98 +34 52.5 6.133 5.493 46.2 7.5 19.5
2010 03 15 00 39.74 +35 43.9 6.204 5.488 40.7 6.8 19.5
2010 03 25 00 48.89 +36 41.5 6.258 5.482 35.9 6.1 19.5
2010 04 04 00 58.33 +37 44.7 6.296 5.477 32.3 5.6 19.4
2010 04 14 01 08.01 +38 53.0 6.318 5.472 30.0 5.3 19.4
Brian G. Marsden (C) Copyright 2009 MPC M.P.E.C. 2009-M23
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