MPEC 2013-U24 : 2013 GR38
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M.P.E.C. 2013-U24 Issued 2013 Oct. 23, 16:51 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 https://www.minorplanetcenter.net/ ISSN 1523-6714
2013 GR38
Revision to MPEC 2013-G40
Additional Observations:
K13G38R ^C2013 10 12.45842 04 35 42.38 +21 36 37.1 23.6 RoEU024695
K13G38R ^C2013 10 12.46083 04 35 42.18 +21 36 36.1 23.7 RoEU024695
K13G38R ^C2013 10 12.46323 04 35 41.96 +21 36 34.9 23.4 RoEU024695
K13G38R ^C2013 10 12.46586 04 35 41.75 +21 36 34.0 23.9 RoEU024695
K13G38R ^C2013 10 12.46826 04 35 41.54 +21 36 32.8 23.4 RoEU024695
K13G38R ^C2013 10 12.47067 04 35 41.34 +21 36 32.0 24.0 RoEU024695
K13G38R ^C2013 10 13.41855 04 34 23.74 +21 29 43.8 23.8 RoEU024695
K13G38R ^C2013 10 13.42095 04 34 23.53 +21 29 42.8 23.4 RoEU024695
K13G38R ^C2013 10 13.42335 04 34 23.33 +21 29 41.9 23.7 RoEU024695
K13G38R ^C2013 10 13.42850 04 34 22.86 +21 29 39.6 23.6 RoEU024695
Observer details:
695 Kitt Peak. Observers R. S. McMillan, J. V. Scotti, M. Riabokin.
Measurers J. A. Larsen, J. V. Scotti. 4-m f/2.8 reflector + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc, reference and Delta-T
131012 695 28.8- 5.8- 131013 695 29.6- 5.8- MPO265057 -0.0049 day
Orbital elements:
2013 GR38 PHA, Earth MOID = 0.0023 AU
Epoch 2013 Nov. 4.0 TT = JDT 2456600.5 MPC
M 57.17127 (2000.0) P Q
n 0.41167243 Peri. 68.08621 +0.29008125 +0.95568134
a 1.7896504 Node 218.88857 -0.90492749 +0.25683027
e 0.5569959 Incl. 4.59178 -0.31138257 +0.14391449
P 2.39 H 21.8 G 0.15 U 4
Residuals in seconds of arc
130408 F51 0.1+ 0.1+ 130415 D90 0.3+ 0.2- 130429 H45 0.5- 0.2+
130408 F51 0.2+ 0.0 130415 D90 0.5- 0.7+ 130429 H45 0.2+ 0.2-
130408 F51 0.1+ 0.0 130418 I15 0.6+ 0.3- 130429 718 0.4+ 0.1+
130409 W85 0.1- 0.1- 130418 I15 0.6- 0.4- 130429 H45 0.7- 0.1-
130409 W85 0.1- 0.2- 130418 I15 0.8- 0.2- 130429 718 0.1+ 0.5+
130409 W85 0.2- 0.1- 130418 291 0.0 0.1- 130429 718 0.1+ 0.0
130409 W85 0.1- 0.0 130418 291 0.1- 0.1+ 130430 291 0.4+ 0.0
130409 G32 (1.7- 0.9+) 130418 291 0.2+ 0.1- 130430 291 0.2+ 0.1+
130409 G32 0.9- 0.1+ 130419 703 0.7- 0.5+ 130430 291 0.2+ 0.0
130409 G32 0.4+ 0.2- 130419 703 0.0 1.1+ 130430 718 0.4- 0.1-
130409 G32 0.9+ 0.7- 130419 703 0.1+ 0.5+ 130430 718 0.1+ 0.0
130409 E23 0.2+ 0.3- 130419 703 0.1- 0.4+ 130430 718 0.5- 0.3+
130409 E23 0.0 0.1- 130419 F65 0.0 0.1- 130501 I15 0.8- 0.2-
130409 E23 0.1- 1.0+ 130419 F65 0.1- 0.0 130501 I15 0.1+ 0.4-
130409 D90 0.1+ 0.1- 130419 F51 0.0 0.0 130501 I15 0.8+ 1.2-
130409 D90 0.3- 0.4- 130419 F51 0.2- 0.1+ 130501 718 0.5+ 0.2+
130409 D90 0.1+ 0.0 130419 F51 0.1+ 0.0 130501 718 0.7+ 0.1+
130409 204 0.1- 0.2+ 130420 291 0.2+ 0.1- 130501 718 0.2- 0.6+
130409 204 0.0 0.1+ 130420 291 0.3+ 0.2- 130501 703 0.5- 0.4+
130410 I39 (0.9- 3.3-) 130420 291 0.1+ 0.2- 130501 703 0.2- 0.3+
130410 I39 0.7+ 0.5+ 130421 H21 0.1+ 0.3- 130501 703 0.9- 0.2+
130410 I39 0.1- 0.0 130421 H21 0.1+ 0.2- 130501 703 0.0 0.2-
130410 I39 (1.7- 0.4-) 130421 H21 0.1+ 0.1- 130502 718 0.2+ 0.8-
130410 J04 0.0 0.1+ 130421 H21 0.2+ 0.2- 130502 718 0.6- 0.4+
130410 J04 0.0 0.1+ 130421 H21 0.2+ 0.3- 130502 718 0.1+ 0.1-
130410 J04 0.2+ 0.1+ 130421 691 1.0- 0.4- 130502 G58 0.3+ 0.4-
130411 G32 0.6+ 0.8- 130421 691 0.0 0.1- 130502 G58 0.1+ 0.3-
130411 G32 0.1+ 1.1- 130421 691 0.1+ 0.2- 130502 G58 0.5+ 0.4-
130411 G32 0.7+ 0.8- 130424 204 0.5+ 0.7+ 130502 G58 0.6+ 0.5-
130411 G32 1.3- 0.1+ 130424 204 0.1- 0.1- 130502 C77 (0.1- 2.2+)
130411 291 0.1+ 0.1+ 130424 204 0.1- 0.0 130502 C77 (1.8+ 5.9+)
130411 291 0.2+ 0.2+ 130425 D90 0.0 0.1+ 130502 C77 1.1- 0.9+
130411 291 0.2+ 0.1+ 130425 D90 0.4- 0.5+ 130503 718 0.3+ 0.6+
130411 D90 0.1- 0.5- 130425 D90 0.6- 0.1+ 130503 718 (1.8+ 0.4+)
130411 D90 0.1- 0.1+ 130426 H21 0.0 0.2- 130503 718 0.3+ 0.0
130411 D90 0.3+ 0.7- 130426 H21 0.1- 0.1- 130503 718 (2.0+ 0.5+)
130412 807 0.0 0.3+ 130426 H21 0.2- 0.2- 130504 204 0.2- 0.3-
130412 807 0.0 0.1- 130426 H21 0.2- 0.3- 130504 204 0.2- 0.3-
130412 807 0.1- 0.5+ 130429 G48 0.3+ 0.8+ 130504 204 0.2+ 0.1+
130412 807 0.1+ 0.1+ 130429 G48 0.3+ 0.4+ 131012 695 0.1+ 0.2+
130413 807 0.1- 1.3+ 130429 G48 0.6+ 0.1- 131012 695 0.2+ 0.2+
130413 807 (0.3+ 1.9+) 130429 G48 1.0+ 0.2- 131012 695 0.0 0.0
130414 204 0.1- 0.0 130429 H45 0.3- 0.3+ 131012 695 0.1+ 0.2+
130414 204 0.2+ 0.1+ 130429 H45 0.5- 0.4- 131012 695 0.1+ 0.1+
130414 204 0.0 0.1+ 130429 H45 0.2- 0.4+ 131012 695 0.1+ 0.3+
130414 H21 0.2+ 0.0 130429 H45 0.0 0.7+ 131013 695 0.3- 0.1+
130414 H21 0.1+ 0.0 130429 H45 0.3- 0.4- 131013 695 0.3- 0.1+
130414 H21 0.2- 0.3- 130429 H45 0.1+ 0.1- 131013 695 0.1- 0.3+
130415 D90 0.1- 0.2- 130429 H45 0.7- 0.4+ 131013 695 0.3- 0.2+
Ephemeris:
2013 GR38 a,e,i = 1.79, 0.56, 5 q = 0.7928
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2013 09 23 04 50 34.9 +23 26 55 0.8029 1.4460 105.8 41.9 23.8
...
2013 10 08 04 41 07.5 +22 06 44 0.7822 1.5683 122.9 32.3 23.6
...
2013 10 16 04 30 37.5 +21 10 31 0.7769 1.6312 133.4 26.4 23.5
...
2013 10 22 04 20 37.5 +20 21 46 0.7785 1.6773 141.7 21.6 23.4
2013 10 23 04 18 48.7 +20 13 07 0.7793 1.6849 143.2 20.7 23.4
2013 10 24 04 16 57.7 +20 04 20 0.7804 1.6924 144.6 19.9 23.4
...
2013 10 30 04 05 14.6 +19 09 01 0.7910 1.7371 153.5 14.8 23.3
...
2013 11 07 03 48 47.0 +17 50 49 0.8185 1.7952 165.5 8.0 23.2
...
2013 11 22 03 20 18.8 +15 30 57 0.9164 1.8990 171.6 4.3 23.4
A. U. Tomatic (C) Copyright 2013 MPC M.P.E.C. 2013-U24
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