MPEC 2009-H35 : 2009 HL21
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M.P.E.C. 2009-H35 Issued 2009 Apr. 21, 22:10 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
2009 HL21
Observations:
K09H21L* C2009 04 20.92262 13 45 03.98 +04 21 49.2 EH035621
K09H21L C2009 04 20.92809 13 45 05.54 +04 21 19.7 EH035621
K09H21L C2009 04 20.93084 13 45 06.29 +04 21 05.8 EH035621
K09H21L C2009 04 20.93358 13 45 07.07 +04 20 51.0 EH035621
K09H21L C2009 04 20.93632 13 45 07.79 +04 20 38.0 EH035621
K09H21L C2009 04 20.93907 13 45 08.60 +04 20 22.9 EH035621
K09H21L C2009 04 20.94180 13 45 09.38 +04 20 08.2 EH035621
K09H21L C2009 04 20.94455 13 45 10.09 +04 19 54.8 17.4 C EH035621
K09H21L C2009 04 21.86230 13 49 38.17 +03 05 25.1 17.5 R EH035113
K09H21L C2009 04 21.86376 13 49 38.51 +03 05 18.3 17.7 R EH035113
K09H21L C2009 04 21.86521 13 49 38.87 +03 05 11.5 17.6 R EH035113
K09H21L C2009 04 21.86667 13 49 39.22 +03 05 05.0 17.4 R EH035113
K09H21L C2009 04 21.87129 13 49 40.76 +03 04 45.4 17.4 V EH035A17
K09H21L C2009 04 21.87325 13 49 41.25 +03 04 36.5 17.3 V EH035A17
K09H21L C2009 04 21.87751 13 49 42.28 +03 04 16.8 17.7 V EH035A17
K09H21L C2009 04 21.88182 13 49 43.33 +03 03 57.4 17.6 V EH035A17
K09H21L C2009 04 21.88619 13 49 44.39 +03 03 37.5 17.7 V EH035A17
K09H21L C2009 04 21.88650 13 49 41.59 +03 03 45.4 17.7 EH035114
K09H21L C2009 04 21.88741 13 49 41.85 +03 03 41.3 17.9 EH035114
K09H21L C2009 04 21.89047513 49 44.83 +03 03 20.2 17.5 V EH035B03
K09H21L C2009 04 21.89226 13 49 46.47 +03 03 07.1 EH035J95
K09H21L C2009 04 21.89404 13 49 46.90 +03 02 58.7 EH035J95
K09H21L C2009 04 21.89439013 49 45.78 +03 03 02.7 17.5 V EH035B03
K09H21L C2009 04 21.89582 13 49 47.33 +03 02 51.2 17.9 R EH035J95
K09H21L C2009 04 21.89830613 49 46.73 +03 02 44.5 17.3 V EH035B03
K09H21L C2009 04 21.89863 13 49 47.03 +03 02 43.1 18.0 V EH035B36
K09H21L C2009 04 21.90168 13 49 47.76 +03 02 28.9 18.1 V EH035B36
K09H21L C2009 04 21.90222413 49 47.65 +03 02 26.9 17.6 V EH035B03
K09H21L C2009 04 21.90473 13 49 48.47 +03 02 15.3 18.0 V EH035B36
K09H21L C2009 04 21.90983 13 49 50.06 +03 01 49.8 18.2 V EH035611
K09H21L C2009 04 21.91145 13 49 50.46 +03 01 42.8 18.0 V EH035611
K09H21L C2009 04 21.91307 13 49 50.84 +03 01 35.3 18.0 V EH035611
Observer details:
113 Volkssternwarte Drebach, Schoenbrunn. Observers G. Lehmann, K. Lehmann.
0.5-m f/6.7 reflector + CCD.
114 Engelhardt Observatory, Zelenchukskaya Station. Observers =. Kryachko,
B. Satovski. Measurer T. Kryachko. 0.3-m f/7.7 reflector + CCD.
611 Starkenburg. Observers M. Busch, A. Heller. 0.45-m f/4.4 reflector + CCD.
621 Bergisch Gladbach. Observer W. Bickel. 0.60-m f/5.2 reflector + CCD.
A17 Guidestar Observatory, Weinheim. Observers M. Emmerich, S. Melchert.
0.36-m f/6 Schmidt-Cassegrain + CCD.
B03 Alter Satzberg, Vienna. Observer M. Pietschnig. 0.35-m f/5.8
Schmidt-Cassegrain + CCD.
B36 Redshed Observatory, Kallham. Observer H. Bachleitner. 0.32-m f/5
reflector + CCD.
J95 Great Shefford. Observer P. Birtwhistle. 0.40-m f/6.0 Schmidt-Cassegrain
+ CCD.
Orbital elements:
2009 HL21 Earth MOID = 0.0107 AU
Epoch 2009 June 18.0 TT = JDT 2455000.5 MPC
M 47.76659 (2000.0) P Q
n 0.45241772 Peri. 2.50534 -0.88806953 -0.45961646
a 1.6805173 Node 150.12678 +0.42145199 -0.82201989
e 0.4546862 Incl. 1.06195 +0.18360480 -0.33620828
P 2.18 H 22.4 G 0.15 U 8
Residuals in seconds of arc
090420 621 0.3- 0.8+ 090421 113 0.3- 0.1- 090421 B03 0.0 0.3+
090420 621 0.2+ 0.3- 090421 A17 0.2+ 0.0 090421 J95 0.2- 0.3+
090420 621 0.1- 0.1+ 090421 A17 0.3+ 0.0 090421 B03 0.2+ 0.1-
090420 621 0.2+ 0.5- 090421 A17 0.2+ 0.3- 090421 B36 0.3+ 0.1+
090420 621 0.5- 0.7+ 090421 A17 0.3+ 0.1- 090421 B36 0.4+ 0.3-
090420 621 0.2+ 0.2- 090421 A17 0.3+ 0.1- 090421 B03 0.1+ 0.1+
090420 621 0.5+ 0.7- 090421 114 0.6- 0.0 090421 B36 0.1+ 0.0
090420 621 0.3- 0.1+ 090421 114 0.1+ 0.1+ 090421 611 0.0 0.3-
090421 113 0.0 0.1+ 090421 B03 0.2- 0.0 090421 611 0.2+ 0.0
090421 113 0.3- 0.0 090421 J95 0.0 0.1+ 090421 611 0.1+ 0.1-
090421 113 0.2- 0.2- 090421 J95 0.1- 0.2-
Ephemeris:
2009 HL21 a,e,i = 1.68, 0.45, 1 q = 0.9164
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2009 04 19 13 33.34 +07 35.9 0.0602 1.061 161.0 18.0 17.4
2009 04 29 14 10.74 -03 01.3 0.116 1.120 168.1 10.7 18.6
2009 05 09 14 24.11 -07 05.1 0.179 1.184 165.9 12.0 19.8
2009 05 19 14 32.09 -09 24.0 0.251 1.250 160.0 16.1 20.8
2009 05 29 14 39.16 -11 04.6 0.332 1.318 152.9 20.5 21.6
Sonia Keys (C) Copyright 2009 MPC M.P.E.C. 2009-H35
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