MPEC 2020-V43 : 2013 GR38
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M.P.E.C. 2020-V43 Issued 2020 November 7, 23:13 UT
The Minor Planet Electronic Circulars contain information on unusual
minor planets and routine data on comets. They are published
on behalf of Division F 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 2019-F35
Additional Observations:
K13G38R C2020 10 19.20903119 52 04.094-13 56 54.21 22.56GVEV043T14
K13G38R C2020 10 19.20997719 52 04.555-13 56 53.50 22.48GVEV043T14
K13G38R C2020 10 19.21092719 52 05.011-13 56 52.83 22.54GVEV043T14
K13G38R C2020 11 07.25792221 56 54.273-08 50 01.55 22.84GVEV043T14
K13G38R C2020 11 07.25910121 56 54.622-08 50 00.35 22.84GVEV043T14
K13G38R C2020 11 07.26027821 56 54.968-08 49 59.09 22.91GVEV043T14
K13G38R C2020 11 07.26145921 56 55.316-08 49 57.93 22.80GVEV043T14
Observer details:
T14 Mauna Kea-UH/Tholen NEO Follow-Up (CFHT). Observer H. Januszewski.
Measurer D. J. Tholen. 3.6-m f/4.1 reflector + MegaCam.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
201019 T14 0.05- 0.01- 201107 T14 0.04- 0.01- MPO466426 -0.03 days
Orbital elements:
2013 GR38 PHA, Earth MOID = 0.0030 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5 Veres
M 46.91548 (2000.0) P Q
n 0.41155398 Peri. 68.37507 +0.29134294 +0.95531168
a 1.7899937 Node 218.67484 -0.90460509 +0.25812927
e 0.5564810 Incl. 4.58828 -0.31114132 +0.14404469
P 2.39 H 21.8 G 0.15 U 0
Residuals in seconds of arc
130305 F51 0.2- 0.3+ 130415 D90 0.4+ 0.1- 130430 291 0.4+ 0.2-
130306 F51 0.0 0.3+ 130415 D90 0.5- 0.8+ 130430 291 0.2+ 0.1-
130313 F51 0.0 0.0 130418 I15 0.6+ 0.3- 130430 291 0.2+ 0.2-
130313 F51 0.1+ 0.1+ 130418 I15 0.6- 0.4- 130430 718 0.4- 0.3-
130313 F51 0.1- 0.1+ 130418 I15 0.7- 0.1- 130430 718 0.1+ 0.2-
130313 F51 0.0 0.0 130418 291 0.0 0.1- 130430 718 0.5- 0.0
130408 F51 0.1+ 0.2+ 130418 291 0.1- 0.1+ 130501 I15 0.9- 0.4-
130408 F51 0.2+ 0.1+ 130418 291 0.2+ 0.1- 130501 I15 0.1+ 0.6-
130408 F51 0.1+ 0.1+ 130419 703 0.7- 0.5+ 130501 I15 0.7+ 1.4-
130409 W85 0.0 0.0 130419 703 0.1+ 1.1+ 130501 718 0.4+ 0.0
130409 W85 0.1- 0.1- 130419 703 0.1+ 0.5+ 130501 718 0.7+ 0.1-
130409 W85 0.2- 0.0 130419 703 0.1- 0.4+ 130501 718 0.3- 0.4+
130409 W85 0.1- 0.0 130419 F65 0.1+ 0.1- 130501 703 0.6- 0.2+
130409 G32 1.7- 1.0+ 130419 F65 0.0 0.0 130501 703 0.3- 0.1+
130409 G32 0.9- 0.2+ 130419 F51 0.0 0.0 130501 703 1.0- 0.0
130409 G32 0.5+ 0.2- 130419 F51 0.1- 0.1+ 130501 703 0.0 0.5-
130409 G32 0.9+ 0.6- 130419 F51 0.1+ 0.0 130502 718 0.0 1.0-
130409 E23 0.2+ 0.3- 130420 291 0.2+ 0.1- 130502 718 0.7- 0.2+
130409 E23 0.0 0.0 130420 291 0.3+ 0.3- 130502 718 0.1- 0.3-
130409 E23 0.1- 1.1+ 130420 291 0.1+ 0.2- 130502 G58 0.1+ 0.6-
130409 D90 0.1+ 0.0 130421 H21 0.1+ 0.3- 130502 G58 0.1- 0.5-
130409 D90 0.3- 0.3- 130421 H21 0.2+ 0.2- 130502 G58 0.4+ 0.6-
130409 D90 0.1+ 0.1+ 130421 H21 0.1+ 0.2- 130502 G58 0.4+ 0.7-
130409 204 0.1- 0.3+ 130421 H21 0.2+ 0.2- 130502 C77 0.3- 2.0+
130409 204 0.0 0.1+ 130421 H21 0.2+ 0.3- 130502 C77 1.6+ 5.7+
130410 I39 0.9- 3.2- 130421 691 1.0- 0.4- 130502 C77 1.3- 0.7+
130410 I39 0.7+ 0.6+ 130421 691 0.0 0.1- 130503 718 0.1+ 0.4+
130410 I39 0.1- 0.1+ 130421 691 0.1+ 0.2- 130503 718 1.6+ 0.2+
130410 I39 1.7- 0.3- 130424 204 0.5+ 0.6+ 130503 718 0.0 0.2-
130410 J04 0.0 0.2+ 130424 204 0.0 0.2- 130503 718 1.8+ 0.3+
130410 J04 0.0 0.2+ 130424 204 0.0 0.1- 130504 204 0.6- 0.5-
130410 J04 0.2+ 0.2+ 130425 D90 0.0 0.0 130504 204 0.6- 0.6-
130411 G32 0.6+ 0.7- 130425 D90 0.3- 0.4+ 130504 204 0.2- 0.1-
130411 G32 0.2+ 1.1- 130425 D90 0.5- 0.0 131012 695 0.1+ 0.3+
130411 G32 0.7+ 0.7- 130426 H21 0.0 0.3- 131012 695 0.1+ 0.3+
130411 G32 1.3- 0.2+ 130426 H21 0.1- 0.3- 131012 695 0.1- 0.1+
130411 291 0.1+ 0.1+ 130426 H21 0.1- 0.3- 131012 695 0.1+ 0.4+
130411 291 0.2+ 0.2+ 130426 H21 0.2- 0.4- 131012 695 0.0 0.2+
130411 291 0.2+ 0.1+ 130429 G48 0.3+ 0.6+ 131012 695 0.1+ 0.4+
130411 D90 0.1- 0.4- 130429 G48 0.3+ 0.2+ 131013 695 0.3- 0.2+
130411 D90 0.1- 0.1+ 130429 G48 0.6+ 0.3- 131013 695 0.3- 0.3+
130411 D90 0.3+ 0.7- 130429 G48 1.0+ 0.4- 131013 695 0.2- 0.4+
130412 807 0.0 0.4+ 130429 H45 0.3- 0.1+ 131013 695 0.4- 0.4+
130412 807 0.1+ 0.0 130429 H45 0.5- 0.6- 131109 F51 0.2- 0.1+
130412 807 0.1- 0.6+ 130429 H45 0.2- 0.2+ 131109 F51 0.3+ 0.2+
130412 807 0.1+ 0.2+ 130429 H45 0.0 0.5+ 131109 F51 0.1- 0.3-
130413 807 0.1- 1.4+ 130429 H45 0.3- 0.6- 201019 T14 0.0 0.0
130413 807 0.3+ 2.0+ 130429 H45 0.1+ 0.3- 201019 T14 0.0 0.0
130414 204 0.1- 0.1+ 130429 H45 0.7- 0.3+ 201019 T14 0.0 0.0
130414 204 0.2+ 0.2+ 130429 H45 0.5- 0.0 201107 T14 0.0 0.0
130414 204 0.0 0.1+ 130429 H45 0.2+ 0.4- 201107 T14 0.0 0.0
130414 H21 0.2+ 0.0 130429 718 0.4+ 0.1- 201107 T14 0.0 0.1+
130414 H21 0.1+ 0.0 130429 H45 0.7- 0.3- 201107 T14 0.0 0.0
130414 H21 0.2- 0.2- 130429 718 0.1+ 0.3+
130415 D90 0.1- 0.2- 130429 718 0.1+ 0.2-
Ephemeris:
2013 GR38 a,e,i = 1.79, 0.56, 5 q = 0.7939
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2020 10 08 18 13 48.1 -15 00 41 0.3991 1.0000 78.6 78.4 22.5
...
2020 10 23 20 21 56.4 -13 05 48 0.4430 1.1229 94.9 62.0 22.5
...
2020 10 31 21 16 39.6 -10 55 25 0.5030 1.1913 100.4 55.0 22.7
...
2020 11 06 21 50 30.1 -09 11 31 0.5607 1.2429 102.9 51.0 22.9
2020 11 07 21 55 36.6 -08 54 20 0.5712 1.2515 103.2 50.4 22.9
2020 11 08 22 00 34.7 -08 37 15 0.5819 1.2601 103.4 49.9 23.0
...
2020 11 14 22 27 45.6 -06 57 20 0.6509 1.3116 104.3 47.0 23.2
...
2020 11 22 22 58 16.9 -04 52 16 0.7531 1.3798 104.0 44.0 23.6
...
2020 12 07 23 43 46.2 -01 21 44 0.9690 1.5045 100.7 40.1 24.2
A. U. Tomatic (C) Copyright 2020 MPC M.P.E.C. 2020-V43
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