MPEC 2021-L53 : 2013 YA38
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M.P.E.C. 2021-L53 Issued 2021 June 5, 00:23 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 YA38
Revision to MPEC 2013-Y60
Additional Observations:
K13Y38A C2021 06 02.42290617 03 39.924-12 12 14.97 21.78wUEL053F51
K13Y38A C2021 06 02.43490717 03 38.670-12 12 06.04 21.60wUEL053F51
K13Y38A C2021 06 02.44692117 03 37.431-12 11 56.75 21.31wUEL053F51
K13Y38A C2021 06 02.45889917 03 36.187-12 11 47.68 21.67wUEL053F51
K13Y38A C2021 06 02.52950217 03 28.856-12 10 53.70 20.95GVEL053F51
K13Y38A C2021 06 02.53014717 03 28.791-12 10 53.19 20.90GVEL053F51
K13Y38A KC2021 06 04.28831 17 00 30.55 -11 48 10.5 21.0 RoEL053291
K13Y38A KC2021 06 04.29191 17 00 30.17 -11 48 09.1 oEL053291
K13Y38A KC2021 06 04.29553 17 00 29.72 -11 48 04.2 21.2 RoEL053291
K13Y38A ^C2021 06 04.31070517 00 28.790-11 47 49.28 21.04GVEL053568
K13Y38A ^C2021 06 04.31169117 00 28.681-11 47 48.50 21.12GVEL053568
K13Y38A ^C2021 06 04.31267017 00 28.575-11 47 47.74 21.11GVEL053568
K13Y38A ^C2021 06 04.31372217 00 28.459-11 47 46.93 21.11GVEL053568
K13Y38A ^C2021 06 04.31470017 00 28.352-11 47 46.15 21.08GVEL053568
K13Y38A ^C2021 06 04.31567917 00 28.243-11 47 45.40 21.10GVEL053568
K13Y38A bC2021 06 04.90000116 59 25.50 -11 40 04.1 21.1 GVEL053L01
K13Y38A bC2021 06 04.90368816 59 25.05 -11 40 01.1 21.0 GVEL053L01
K13Y38A bC2021 06 04.91032516 59 24.37 -11 39 55.3 21.0 GVEL053L01
Observer details:
291 LPL/Spacewatch II. Observer R. A. Mastaler. 1.8-m f/2.7 reflector + CCD.
568 Mauna Kea. Observers R. Wainscoat, C. Crowder, T. Burdullis. Measurers
R. Weryk, R. Wainscoat. 3.6-m Canada-France-Hawaii Telescope + CCD.
F51 Pan-STARRS 1, Haleakala. Observers J. Bulger, T. Lowe, A. Schultz, M.
Willman, K. Chambers, I. Smith. Measurers K. Chambers, S. Chastel, T. de
Boer, L. Denneau, J. Fairlamb, H. Flewelling, M. Huber, C.-C. Lin, E.
Magnier, Y. Ramanjooloo, R. Wainscoat, R. Weryk. 1.8-m Ritchey-Chretien +
CCD.
L01 Visnjan Observatory, Tican. Observers K. Korlevic, I. Lyon. Measurer K.
Korlevic. 1.0-m f/2.9 reflector + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
210602 F51 7.99- 0.26- 210604 L01 8.35- 0.33- MPO279492 -5.63 days
Orbital elements:
2013 YA38 Earth MOID = 0.0607 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5 Veres
M 293.82222 (2000.0) P Q
n 0.25026499 Peri. 172.56954 +0.99993881 +0.00650021
a 2.4938442 Node 187.07652 -0.00909405 +0.94373754
e 0.7003931 Incl. 4.16672 +0.00629881 +0.33063152
P 3.94 H 20.96 G 0.15 U 2
Residuals in seconds of arc
131227 G96 0.3- 0.1+ 131228 J95 0.1- 0.7- 140104 807 0.1- 0.3-
131227 G96 0.2- 0.0 131228 J95 0.1+ 0.0 140104 807 0.0 0.0
131227 G96 0.1+ 0.1+ 131229 807 0.1- 0.1+ 140104 H21 0.0 0.4+
131227 G96 0.1- 0.1- 131229 807 0.0 0.1- 140104 H21 0.1+ 0.2+
131227 G96 0.5- 0.2+ 131229 807 0.1+ 0.1+ 140104 H21 0.1- 0.2+
131227 G96 0.2- 0.1- 131229 291 0.8+ 0.2- 140105 807 0.1+ 0.1-
131227 G96 0.2- 0.2+ 131229 291 0.2- 0.3+ 140105 807 0.1+ 0.1-
131227 G96 0.0 0.4+ 131229 F51 0.1- 0.0 140105 807 0.1+ 0.1-
131227 474 0.3- 0.3+ 131229 F51 0.2- 0.0 210602 F51 0.0 0.1+
131227 474 0.2+ 0.1+ 131229 F51 0.1- 0.0 210602 F51 0.1- 0.1-
131227 474 0.3+ 0.1+ 131229 F51 0.1- 0.1+ 210602 F51 0.1+ 0.1+
131227 474 1.1+ 0.3- 131229 204 0.1+ 0.1- 210602 F51 0.1+ 0.1+
131227 J95 0.1+ 0.1- 131230 204 0.3+ 0.2- 210602 F51 0.1+ 0.0
131227 J95 0.0 0.8+ 131230 G96 0.2- 0.1+ 210602 F51 0.1+ 0.0
131228 104 1.3+ 0.5+ 131230 G96 0.3- 0.1+ 210604 291 0.4- 0.2-
131228 104 1.3+ 1.2- 131230 G96 0.2- 0.4+ 210604 291 (0.1- 1.7-)
131228 104 0.4+ 0.2+ 131230 G96 0.1- 0.1+ 210604 291 0.8- 0.3+
131228 807 0.2+ 0.2- 131230 926 0.2- 0.1+ 210604 568 0.0 0.0
131228 807 0.3+ 0.1- 131230 926 0.1- 0.1+ 210604 568 0.0 0.0
131228 807 0.0 0.1+ 131230 926 0.1+ 0.1- 210604 568 0.0 0.0
131228 926 0.3- 0.3+ 131231 807 0.1+ 0.0 210604 568 0.0 0.0
131228 926 0.2+ 0.0 131231 807 0.2+ 0.0 210604 568 0.0 0.0
131228 926 0.3- 0.5- 131231 807 0.1+ 0.0 210604 568 0.0 0.0
131228 291 0.1- 0.2+ 140103 H21 0.1- 1.0+ 210604 L01 0.2- 0.3+
131228 291 0.9- 0.3+ 140103 H21 0.0 0.4+ 210604 L01 0.7- 0.4+
131228 291 0.4- 0.6- 140104 807 0.4- 0.0 210604 L01 0.3+ 0.9+
Ephemeris:
2013 YA38 a,e,i = 2.49, 0.70, 4 q = 0.7472
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2021 05 06 17 25 58.6 -16 25 13 0.9444 1.8528 143.1 19.1 23.1
...
2021 05 21 17 18 55.1 -14 27 54 0.7248 1.7065 158.2 12.7 22.2
...
2021 05 29 17 10 12.6 -13 05 13 0.6242 1.6261 165.9 8.7 21.6
...
2021 06 04 17 01 00.7 -11 51 48 0.5568 1.5647 169.0 7.1 21.2
2021 06 05 16 59 14.5 -11 38 31 0.5463 1.5544 169.0 7.2 21.1
2021 06 06 16 57 24.1 -11 24 56 0.5360 1.5440 168.8 7.3 21.1
...
2021 06 12 16 44 54.2 -09 56 46 0.4783 1.4816 164.3 10.7 20.9
...
2021 06 20 16 24 25.8 -07 41 11 0.4126 1.3973 153.4 19.0 20.7
...
2021 07 05 15 35 38.4 -02 34 22 0.3197 1.2373 127.4 40.7 20.5
A. U. Tomatic (C) Copyright 2021 MPC M.P.E.C. 2021-L53
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