MPEC 2015-Q14 : 2013 LL31
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M.P.E.C. 2015-Q14 Issued 2015 Aug. 18, 03:50 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 LL31
Revision to MPEC 2013-M06
Additional Observations:
K13L31L KC2015 08 16.37225202 09 10.29 +29 31 16.0 22.1 VuEQ014H21
K13L31L KC2015 08 16.38160002 09 11.30 +29 31 18.7 22.1 VuEQ014H21
K13L31L KC2015 08 17.36797302 11 05.50 +29 34 58.4 22.1 VuEQ014H21
K13L31L KC2015 08 17.38355502 11 07.21 +29 35 01.5 22.1 VuEQ014H21
K13L31L KC2015 08 17.41044902 11 10.18 +29 35 06.8 22.3 VuEQ014H21
Observer details:
H21 Astronomical Research Observatory, Westfield. Observer R. Holmes.
Measurers S. Foglia, L. Buzzi, T. Linder, R. Holmes. 0.81-m f/4.0
astrograph + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc, reference and Delta-T
150816 H21 10.8- 0.2- 150817 H21 11.9- 0.1+ MPO268508 +0.0054 day
Orbital elements:
2013 LL31 Earth MOID = 0.2853 AU
Epoch 2015 June 27.0 TT = JDT 2457200.5 MPC
M 215.67088 (2000.0) P Q
n 0.61194923 Peri. 276.39029 -0.54455100 -0.82634043
a 1.3740181 Node 208.13791 +0.83805914 -0.52924510
e 0.1504363 Incl. 17.73008 +0.03348258 -0.19251265
P 1.61 H 20.1 G 0.15 U 4
Residuals in seconds of arc
130615 691 0.7- 0.1+ 130616 106 0.8+ 0.3- 130627 291 0.1+ 0.2+
130615 691 0.5- 0.0 130616 106 0.4+ 0.7- 130627 291 0.6+ 0.2+
130615 691 0.1- 0.1- 130616 204 0.6- 0.3+ 130714 H21 0.0 0.1-
130615 291 0.1+ 0.0 130617 G96 0.0 0.4- 130714 H21 0.4- 0.0
130615 291 0.2+ 0.1- 130617 G96 1.0- 0.4- 130714 H21 0.3- 1.3-
130615 291 0.2+ 0.1- 130617 G96 1.8- 1.1+ 130715 H21 0.1- 0.2-
130616 291 0.4+ 0.1+ 130617 G96 0.0 0.1- 130715 H21 0.1+ 0.0
130616 695 0.1+ 0.1- 130617 291 0.2+ 0.3+ 130715 H21 0.1- 0.1-
130616 291 0.1+ 0.1- 130617 291 0.0 0.0 130809 291 0.1+ 0.2+
130616 695 0.0 0.2- 130617 291 0.3+ 0.2- 130809 291 0.1+ 0.0
130616 695 0.0 0.0 130618 291 0.2+ 0.1+ 130809 291 0.1- 0.1+
130616 695 0.1+ 0.1+ 130618 291 0.3+ 0.1- 150816 H21 0.4+ 0.6-
130616 291 0.0 0.1- 130618 291 0.2+ 0.2+ 150816 H21 0.2- 0.1-
130616 291 0.0 0.1+ 130626 G96 0.1- 0.3+ 150817 H21 0.4+ 0.6+
130616 291 0.1- 0.2+ 130626 G96 0.1+ 0.1+ 150817 H21 0.1- 0.3+
130616 291 0.4+ 0.0 130626 G96 0.9- 0.1- 150817 H21 0.5- 0.3-
130616 106 0.2+ 0.3- 130626 G96 0.2- 0.2+
130616 204 0.2- 0.3- 130627 291 0.0 0.2+
Ephemeris:
2013 LL31 a,e,i = 1.37, 0.15, 18 q = 1.1673
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2015 07 19 01 11 56.9 +25 54 45 1.1499 1.5246 89.2 41.8 23.0
...
2015 08 03 01 42 38.3 +28 13 13 1.0104 1.5025 95.8 42.2 22.6
...
2015 08 11 01 58 39.4 +29 06 00 0.9356 1.4894 99.6 42.1 22.5
...
2015 08 17 02 10 22.6 +29 33 40 0.8797 1.4791 102.6 41.9 22.3
2015 08 18 02 12 18.0 +29 37 10 0.8704 1.4773 103.1 41.9 22.3
2015 08 19 02 14 12.7 +29 40 19 0.8611 1.4755 103.6 41.8 22.3
...
2015 08 25 02 25 27.0 +29 51 39 0.8058 1.4646 106.9 41.3 22.1
...
2015 09 02 02 39 40.4 +29 43 58 0.7332 1.4493 111.6 40.3 21.8
...
2015 09 17 03 02 46.7 +27 59 25 0.6030 1.4190 121.8 37.0 21.3
A. U. Tomatic (C) Copyright 2015 MPC M.P.E.C. 2015-Q14
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