MPEC 1999-B23: 1998 UU43
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M.P.E.C. 1999-B23 Issued 1999 Jan. 28, 22:02 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.
BMARSDEN@CFA.HARVARD.EDU or GWILLIAMS@CFA.HARVARD.EDU
URL http://cfa-www.harvard.edu/iau/mpc.html
1998 UU43
Observations:
J98U43U* C1998 10 22.35003 02 17 47.55 +16 18 22.5 695
J98U43U C1998 10 22.48311 02 17 46.87 +16 18 18.5 695
J98U43U C1998 12 14.83617 02 13 35.14 +15 53 37.6 22.7 R 950
J98U43U C1998 12 14.85345 02 13 35.07 +15 53 37.3 950
Observer details:
695 Kitt Peak. Observers R. L. Millis, M. W. Buie, R. M. Wagner, J. L.
Elliot. Measurer M. W. Buie. 4-m reflector + CCD.
950 La Palma. Observers E. Fletcher. A. Fitzsimmons. Measurers
A. Fitzsimmons, M. W. Buie. 2.5-m Isaac Newton Telescope + CCD.
Orbital elements:
1998 UU43
The following assumed 2:3 Neptune-resonance orbital elements
keep the object more than 17 AU from Neptune over a 14 000-year period
Epoch 1998 Nov. 3.0 TT = JDT 2451120.5 Marsden
M 294.90755 (2000.0) P Q
n 0.00396837 Peri. 260.22258 -0.65593660 -0.74387753
a 39.5118878 Node 231.56103 +0.74065306 -0.60159656
e 0.2567126 Incl. 9.40802 +0.14553427 -0.29108039
P 248 H 7.2 G 0.15
From 4 observations 1998 Oct. 22-Dec. 14.
Ephemeris:
1998 UU43 a,e,i = 39.51, 0.26, 9 q = 29.369
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
1999 01 22 02 12.67 +15 45.0 37.521 37.616 94.7 1.5 23.1
1999 02 01 02 12.86 +15 44.9 37.688 37.608 84.6 1.5 23.2
1999 02 11 02 13.22 +15 45.6 37.851 37.601 74.6 1.4 23.2
1999 02 21 02 13.75 +15 47.3 38.007 37.594 64.6 1.4 23.2
1999 03 03 02 14.44 +15 49.8 38.150 37.587 54.8 1.2 23.2
1999 03 13 02 15.27 +15 53.1 38.276 37.579 45.0 1.1 23.2
1999 03 23 02 16.21 +15 57.0 38.381 37.572 35.3 0.9 23.1
Brian G. Marsden (C) Copyright 1999 MPC M.P.E.C. 1999-B23
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