MPEC 2008-U78 : 2008 UM90
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M.P.E.C. 2008-U78 Issued 2008 Oct. 28, 12:30 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 UM90
Observations:
K08U90M* C2008 10 27.14424 22 21 09.00 -14 23 44.9 21.7 V EU078G96
K08U90M C2008 10 27.14911 22 21 10.00 -14 23 40.8 21.0 V EU078G96
K08U90M C2008 10 27.15400 22 21 11.08 -14 23 37.2 21.7 V EU078G96
K08U90M C2008 10 27.15894 22 21 12.13 -14 23 33.6 21.3 V EU078G96
K08U90M C2008 10 27.18750 22 21 18.28 -14 23 12.3 21.5 V EU078G96
K08U90M C2008 10 27.18815 22 21 18.48 -14 23 11.8 21.7 V EU078G96
K08U90M C2008 10 27.18880 22 21 18.63 -14 23 10.8 21.8 V EU078G96
K08U90M C2008 10 27.18944 22 21 18.79 -14 23 10.4 22.1 V EU078G96
K08U90M HC2008 10 28.10615 22 24 41.65 -14 11 37.4 EU078291
K08U90M HC2008 10 28.11371 22 24 43.38 -14 11 32.9 EU078291
K08U90M C2008 10 28.13824 22 24 48.46 -14 11 14.6 21.5 V EU078G96
K08U90M C2008 10 28.13828 22 24 48.43 -14 11 14.2 21.0 R EU078H01
K08U90M C2008 10 28.13889 22 24 48.56 -14 11 14.2 21.7 V EU078G96
K08U90M C2008 10 28.13954 22 24 48.74 -14 11 12.8 21.3 V EU078G96
K08U90M C2008 10 28.14018 22 24 48.92 -14 11 12.5 21.8 V EU078G96
K08U90M C2008 10 28.14445 22 24 49.75 -14 11 09.5 21.0 R EU078H01
K08U90M C2008 10 28.14757 22 24 50.42 -14 11 06.8 21.3 R EU078H01
K08U90M C2008 10 28.15145 22 24 51.24 -14 11 03.9 20.9 R EU078H01
K08U90M C2008 10 28.18889 22 24 59.28 -14 10 35.6 22.5 V EU078G96
K08U90M C2008 10 28.19093 22 24 59.68 -14 10 33.6 22.5 V EU078G96
K08U90M C2008 10 28.19296 22 25 00.10 -14 10 32.8 21.7 V EU078G96
K08U90M C2008 10 28.19499 22 25 00.55 -14 10 31.1 21.6 V EU078G96
Observer details:
291 LPL/Spacewatch II. Observer T. H. Bressi. 1.8-m f/2.7 reflector + CCD.
G96 Mt. Lemmon Survey. Observer A. Boattini. 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.
H01 Magdalena Ridge Observatory, Socorro. Observers W. H. Ryan, E. V. Ryan.
Measurer W. H. Ryan. 2.4-m f/8.9 reflector + CCD.
Orbital elements:
2008 UM90 Earth MOID = 0.0691 AU
Epoch 2008 Nov. 30.0 TT = JDT 2454800.5 MPC
M 42.66222 (2000.0) P Q
n 0.39013708 Peri. 121.26113 +0.51822861 +0.85524213
a 1.8549173 Node 179.95212 -0.81580375 +0.49436169
e 0.4513522 Incl. 5.97461 -0.25671648 +0.15545872
P 2.53 H 20.9 G 0.15 U 9
Residuals in seconds of arc
081027 G96 0.6+ 0.2- 081028 291 0.7- 0.8+ 081028 H01 0.1+ 0.4+
081027 G96 0.2- 0.2+ 081028 291 1.1+ 0.4- 081028 H01 0.0 0.3+
081027 G96 0.1+ 0.1+ 081028 G96 0.5- 0.6- 081028 G96 0.5+ 0.3-
081027 G96 0.2- 0.0 081028 H01 0.2- 0.1+ 081028 G96 0.0 0.2+
081027 G96 0.8- 0.3- 081028 G96 1.1- 0.7- 081028 G96 0.1- 0.6-
081027 G96 0.0 0.3- 081028 G96 0.5- 0.2+ 081028 G96 0.2+ 0.4-
081027 G96 0.2+ 0.2+ 081028 G96 0.2+ 0.0
081027 G96 0.5+ 0.1+ 081028 H01 0.1- 0.1+
Ephemeris:
2008 UM90 a,e,i = 1.85, 0.45, 6 q = 1.0177
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2008 10 21 21 56.65 -15 36.7 0.447 1.268 118.0 43.9 21.4
2008 10 22 22 00.88 -15 25.4 0.455 1.274 118.0 43.6 21.4
2008 10 23 22 05.00 -15 13.8 0.464 1.280 118.0 43.3 21.4
2008 10 24 22 09.04 -15 02.0 0.472 1.286 118.0 43.1 21.5
2008 10 25 22 12.98 -14 50.0 0.481 1.292 118.0 42.8 21.5
2008 10 26 22 16.84 -14 37.7 0.490 1.298 117.9 42.6 21.6
2008 10 27 22 20.61 -14 25.3 0.500 1.304 117.9 42.4 21.6
2008 10 28 22 24.30 -14 12.8 0.509 1.310 117.8 42.1 21.7
2008 10 29 22 27.92 -14 00.1 0.518 1.317 117.7 41.9 21.7
2008 10 30 22 31.45 -13 47.2 0.528 1.323 117.5 41.7 21.8
2008 10 31 22 34.92 -13 34.3 0.538 1.329 117.4 41.6 21.8
2008 11 01 22 38.32 -13 21.2 0.548 1.335 117.2 41.4 21.8
2008 11 02 22 41.65 -13 08.0 0.558 1.341 117.1 41.2 21.9
2008 11 03 22 44.92 -12 54.8 0.568 1.348 116.9 41.0 21.9
2008 11 04 22 48.13 -12 41.4 0.578 1.354 116.7 40.9 22.0
2008 11 05 22 51.28 -12 28.0 0.588 1.360 116.5 40.7 22.0
2008 11 06 22 54.38 -12 14.5 0.599 1.366 116.3 40.6 22.1
2008 11 07 22 57.41 -12 01.0 0.610 1.373 116.0 40.4 22.1
2008 11 08 23 00.40 -11 47.4 0.620 1.379 115.8 40.3 22.2
2008 11 09 23 03.34 -11 33.8 0.631 1.385 115.5 40.2 22.2
2008 11 10 23 06.23 -11 20.2 0.642 1.392 115.3 40.0 22.2
Timothy B. Spahr (C) Copyright 2008 MPC M.P.E.C. 2008-U78
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