MPEC 2008-Y28 : 2005 YX128
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M.P.E.C. 2008-Y28 Issued 2008 Dec. 22, 14:18 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
2005 YX128
Revision to MPEC 2006-A03
Additional Observations:
K05YC8X C2008 12 21.34108 04 38 16.47 +22 16 11.7 22.3 V EY028G96
K05YC8X C2008 12 21.34623 04 38 15.82 +22 16 09.5 20.9 V EY028G96
K05YC8X C2008 12 21.35112 04 38 15.25 +22 16 08.0 20.8 V EY028G96
K05YC8X C2008 12 21.35619 04 38 14.64 +22 16 06.1 21.2 V EY028G96
K05YC8X C2008 12 21.37405 04 38 12.43 +22 16 00.3 21.7 V EY028G96
K05YC8X C2008 12 21.38146 04 38 11.54 +22 15 57.8 21.3 V EY028G96
K05YC8X C2008 12 21.38884 04 38 10.62 +22 15 54.9 EY028G96
K05YC8X C2008 12 21.39620 04 38 09.70 +22 15 51.7 EY028G96
K05YC8X C2008 12 21.86667 04 37 13.67 +22 13 10.4 21.0 C EY028493
K05YC8X C2008 12 21.86861 04 37 13.44 +22 13 09.3 20.7 C EY028493
K05YC8X C2008 12 21.87056 04 37 13.21 +22 13 08.7 20.9 C EY028493
K05YC8X C2008 12 22.19216 04 36 34.56 +22 11 18.3 21.4 V EY028G96
K05YC8X C2008 12 22.19694 04 36 33.94 +22 11 16.0 21.4 V EY028G96
K05YC8X C2008 12 22.20164 04 36 33.33 +22 11 14.9 21.3 V EY028G96
K05YC8X C2008 12 22.20645 04 36 32.76 +22 11 13.7 21.2 V EY028G96
K05YC8X C2008 12 22.21238 04 36 32.01 +22 11 11.6 21.3 V EY028291
K05YC8X C2008 12 22.21640 04 36 31.52 +22 11 10.1 21.7 V EY028291
K05YC8X C2008 12 22.22043 04 36 31.01 +22 11 08.7 21.5 V EY028291
Observer details:
291 LPL/Spacewatch II. Observer T. H. Bressi. 1.8-m f/2.7 reflector + CCD.
493 Calar Alto. Observer F. Hormuth. 1.23-m reflector + CCD.
G96 Mt. Lemmon Survey. Observer R. E. Hill. Measurers E. C. Beshore,
A. Boattini, 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.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
081221 G96 7.62- 0.13- 081222 291 7.56- 0.14- MPO 98055 +20.6 day
Orbital elements:
2005 YX128 Earth MOID = 0.0559 AU
Epoch 2008 Nov. 30.0 TT = JDT 2454800.5 MPC
M 306.32882 (2000.0) P Q
n 0.30645869 Peri. 315.32748 -0.80726372 +0.58524268
a 2.1788204 Node 260.64112 -0.51757359 -0.76410090
e 0.7323424 Incl. 4.43301 -0.28362451 -0.27136843
P 3.22 H 18.9 G 0.15 U 3
Residuals in seconds of arc
051230 704 0.2+ 0.6- 060105 448 0.6+ 0.3- 060110 448 (2.1- 2.1+)
051230 704 0.6- 0.2- 060106 G77 1.5- 0.9- 060110 448 (2.7- 2.1+)
051230 704 0.1- 0.2- 060106 G77 1.0- 0.5- 060110 G77 1.1+ 0.2+
051230 704 0.3+ 0.1- 060106 448 0.1- 0.1- 060110 448 (2.3- 2.0+)
051230 704 0.3+ 0.6+ 060106 448 0.2- 0.1+ 060117 926 0.2+ 0.2-
051231 734 0.3- 0.1- 060106 448 0.0 0.1+ 060117 926 0.5- 0.1-
051231 734 0.6- 0.0 060106 G77 0.2- 0.3- 060117 926 0.3+ 0.2-
051231 734 0.4- 0.2- 060106 G77 (2.8- 0.3+) 081221 G96 0.1+ 0.0
051231 734 0.3- 0.1- 060107 703 0.9+ 0.5- 081221 G96 0.1- 0.4-
051231 734 0.6- 0.3- 060107 703 0.0 0.3- 081221 G96 0.3+ 0.2-
051231 711 0.4+ 0.7+ 060107 703 0.9- 0.1- 081221 G96 0.4+ 0.3-
051231 711 0.4+ 0.2+ 060107 703 0.7- 0.0 081221 G96 0.2+ 0.2+
051231 711 0.1+ 0.4+ 060109 198 0.4+ 0.1- 081221 G96 0.4+ 0.3+
060101 A50 0.0 0.0 060109 198 0.2+ 0.0 081221 G96 0.1+ 0.0
060101 A50 0.6+ 0.3+ 060109 198 0.0 0.0 081221 G96 0.1- 0.6-
060101 A50 0.3+ 0.1+ 060109 198 0.1+ 0.0 081221 493 0.1+ 0.1+
060101 A50 0.1+ 0.2+ 060109 198 0.2- 0.3+ 081221 493 0.2+ 0.3-
060101 143 0.7- 0.3+ 060110 704 0.2- 0.8+ 081221 493 0.4+ 0.3-
060101 143 0.5- 0.1- 060110 704 0.0 0.6+ 081222 G96 0.8+ 0.1+
060102 704 0.4+ 0.5- 060110 704 0.1+ 0.7+ 081222 G96 0.3+ 0.6-
060102 704 0.2+ 0.3- 060110 704 0.3+ 0.6+ 081222 G96 0.1- 0.0
060102 704 0.6+ 0.4- 060110 704 0.3+ 0.6+ 081222 G96 0.2+ 0.4+
060102 704 0.3+ 0.7- 060110 G77 0.1+ 0.3+ 081222 291 0.2- 0.3+
060102 704 0.2+ 0.3- 060110 G77 1.0+ 0.1+ 081222 291 0.2- 0.2+
060105 448 0.0 0.3- 060110 G77 0.3- 0.2+ 081222 291 0.4- 0.2+
060105 448 0.3- 0.0 060110 G77 0.0 0.1+
Ephemeris:
2005 YX128 a,e,i = 2.18, 0.73, 4 q = 0.5832
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2008 12 20 04 40.98 +22 23.8 1.204 2.165 163.4 7.4 21.5
2008 12 30 04 21.42 +21 24.0 1.174 2.077 148.6 14.3 21.6
2009 01 09 04 04.53 +20 22.0 1.170 1.986 134.4 20.7 21.8
2009 01 19 03 51.87 +19 26.9 1.186 1.891 121.1 26.5 21.9
2009 01 29 03 44.13 +18 45.4 1.212 1.793 109.0 31.3 21.9
2009 02 08 03 41.34 +18 20.3 1.241 1.690 98.1 35.3 22.0
2009 02 18 03 43.12 +18 11.0 1.266 1.583 88.4 38.6 22.0
2009 02 28 03 49.03 +18 15.4 1.281 1.472 79.7 41.5 21.9
2009 03 10 03 58.67 +18 30.0 1.282 1.357 72.0 44.1 21.8
2009 03 20 04 11.68 +18 51.1 1.265 1.237 65.1 46.9 21.6
Timothy B. Spahr (C) Copyright 2008 MPC M.P.E.C. 2008-Y28
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