MPEC 2006-A04 : 2005 YY128
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M.P.E.C. 2006-A04 Issued 2006 Jan. 1, 23:44 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.
Supported in part by the Brinson Foundation
Supported in part by the TABASGO Foundation
Prepared using the Tamkin Foundation Computer Network
MPC@CFA.HARVARD.EDU
URL http://cfa-www.harvard.edu/iau/mpc.html ISSN 1523-6714
2005 YY128
Observations:
K05YC8Y C2005 12 05.47225 09 11 21.04 +17 27 10.8 21.8 V EA004G96
K05YC8Y C2005 12 05.47983 09 11 21.15 +17 27 08.9 21.6 V EA004G96
K05YC8Y C2005 12 05.48739 09 11 21.30 +17 27 07.8 21.7 V EA004G96
K05YC8Y C2005 12 05.49497 09 11 21.51 +17 27 06.0 21.4 V EA004G96
K05YC8Y* C2005 12 30.48824 09 07 47.10 +17 15 33.3 19.9 V EA004691
K05YC8Y C2005 12 30.50562 09 07 46.10 +17 15 35.4 20.1 V EA004691
K05YC8Y C2005 12 30.52303 09 07 45.15 +17 15 37.3 20.1 V EA004691
K05YC8Y C2005 12 31.28101 09 07 04.77 +17 17 12.3 19.9 R EA004734
K05YC8Y C2005 12 31.28395 09 07 04.59 +17 17 13.1 19.7 R EA004734
K05YC8Y C2005 12 31.28689 09 07 04.42 +17 17 13.2 20.1 R EA004734
K05YC8Y C2005 12 31.28984 09 07 04.21 +17 17 14.0 19.7 R EA004734
K05YC8Y C2005 12 31.40072 09 06 57.73 +17 17 30.6 20.0 R EA004711
K05YC8Y C2005 12 31.42635 09 06 56.16 +17 17 34.0 19.8 R EA004711
K05YC8Y C2005 12 31.43762 09 06 55.49 +17 17 35.6 19.7 R EA004711
K05YC8Y C2006 01 01.01013 09 06 22.58 +17 18 51.7 19.5 V EA004A50
K05YC8Y C2006 01 01.01529 09 06 22.22 +17 18 53.1 19.8 V EA004A50
K05YC8Y C2006 01 01.02552 09 06 21.53 +17 18 53.7 20.2 V EA004A50
Observer details:
691 Steward Observatory, Kitt Peak. Observer R. S. McMillan. 0.9-m f/3
reflector + CCD.
711 McDonald Observatory. Observer J. G. Ries. 0.76-m reflector + CCD
+ prime-focus corrector.
734 Farpoint Observatory. Observer G. Hug. 0.7-m reflector + CCD.
A50 Andrushivka Astronomical Observatory. Observer Y. Ivashchenko. 0.6-m
f/2.0 reflector + CCD.
G96 Mt. Lemmon Survey. Observer A. Grauer. Measurers E. C. Beshore,
E. J. Christensen, G. J. Garradd, A. D. Grauer, R. E. Hill, R. A. Kowalski,
S. M. Larson, R. H. McNaught. 1.5-m reflector + CCD.
Orbital elements:
2005 YY128 PHA, Earth MOID = 0.0289 AU
Epoch 2006 Mar. 6.0 TT = JDT 2453800.5 MPC
M 321.76865 (2000.0) P Q
n 0.61384141 Peri. 314.73497 -0.25166115 +0.96681044
a 1.3711930 Node 300.64164 -0.87284336 -0.24641207
e 0.5938349 Incl. 2.93766 -0.41810421 -0.06751781
P 1.61 H 18.7 G 0.15 U 9
Residuals in seconds of arc
051205 G96 0.7+ 0.7+ 051230 691 0.7+ 0.3+ 051231 711 0.5+ 0.1-
051205 G96 0.2- 0.1- 051231 734 0.4- 0.4- 051231 711 0.7+ 0.0
051205 G96 0.5- 0.0 051231 734 0.5- 0.0 060101 A50 1.0+ 0.0
051205 G96 0.1+ 0.7- 051231 734 0.4- 0.3- 060101 A50 0.5+ 0.6+
051230 691 0.7+ 0.2+ 051231 734 0.9- 0.1+ 060101 A50 0.2- 0.3-
051230 691 0.4+ 0.3+ 051231 711 0.6+ 0.1-
Ephemeris:
2005 YY128 a,e,i = 1.37, 0.59, 3 q = 0.5569
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2005 12 26 09 10.99 +17 08.8 0.812 1.684 139.2 22.4 20.5
2006 01 05 09 01.80 +17 30.4 0.682 1.616 151.6 16.8 19.8
2006 01 15 08 44.04 +18 15.0 0.570 1.543 166.1 8.8 19.0
2006 01 25 08 15.87 +19 16.1 0.481 1.465 177.0 2.0 18.2
2006 02 04 07 37.38 +20 13.4 0.417 1.381 157.8 15.7 18.4
2006 02 14 06 52.78 +20 37.7 0.379 1.291 137.2 31.3 18.5
2006 02 24 06 08.78 +20 15.0 0.360 1.196 116.9 47.6 18.7
2006 03 06 05 29.94 +19 14.2 0.352 1.096 97.7 63.8 18.9
2006 03 16 04 55.35 +17 47.4 0.346 0.991 79.4 80.5 19.2
2006 03 26 04 19.35 +15 52.0 0.337 0.883 60.8 99.8 19.7
Gareth V. Williams (C) Copyright 2006 MPC M.P.E.C. 2006-A04
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