MPEC 2021-L138 : 2021 LL5
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M.P.E.C. 2021-L138 Issued 2021 June 13, 04:46 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
2021 LL5
Observations:
K21L05L*KC2021 06 10.08923 15 22 04.51 -34 48 08.0 18.6 GVEL138W94
K21L05L KC2021 06 10.09469 15 22 07.74 -34 49 02.4 VEL138W94
K21L05L KC2021 06 10.10009 15 22 11.02 -34 49 55.7 20.0 GVEL138W94
K21L05L KC2021 06 10.29589 15 24 12.60 -35 21 17.0 19.0 GVEL138W95
K21L05L KC2021 06 10.30116 15 24 16.07 -35 22 03.1 19.1 GVEL138W95
K21L05L KC2021 06 10.30643 15 24 19.58 -35 22 53.4 19.4 GVEL138W95
K21L05L |C2021 06 11.16780 15 34 41.43 -37 42 41.0 20.0 VuEL138807
K21L05L |C2021 06 11.16963 15 34 42.63 -37 42 59.0 20.5 VuEL138807
K21L05L |C2021 06 11.17159 15 34 43.96 -37 43 16.4 20.2 VuEL138807
K21L05L KC2021 06 11.45024515 38 14.51 -38 26 45.3 20.4 GVEL138474
K21L05L KC2021 06 11.45086415 38 14.92 -38 26 51.0 20.6 GVEL138474
K21L05L KC2021 06 11.45420915 38 17.23 -38 27 23.1 20.6 GVEL138474
K21L05L KC2021 06 11.45544715 38 18.13 -38 27 33.7 20.9 GVEL138474
Observer details:
474 Mount John Observatory, Lake Tekapo. Observers A. C. Gilmore, P. M.
Kilmartin. Measurer P. M. Kilmartin. 1.0-m f/7.7 reflector + CCD.
807 Cerro Tololo Observatory, La Serena. Observers T. Linder, R. Holmes, L.
Horn. 0.61-m f/6.5 astrograph + CCD.
W94 MAP, San Pedro de Atacama. Observers A. Maury, G. Attard. Measurers A.
Maury, G. Attard, D. Parrott. 0.28-m f/2.2 Schmidt + CCD.
W95 Observatorio Panameno, San Pedro de Atacama. Observers A. Maury, G.
Attard, J. Fabrega. Measurers A. Maury, G. Attard, D. Parrott. 0.40-m
f/3.8 reflector + CCD.
Orbital elements:
2021 LL5 Earth MOID = 0.0470 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5 Bell
M 288.98778 (2000.0) P Q
n 0.41245346 Peri. 185.29415 -0.25862508 +0.96211687
a 1.7873904 Node 69.73911 -0.88285754 -0.19917880
e 0.4055662 Incl. 5.27697 -0.39201483 -0.18616910
P 2.39 H 25.24 G 0.15 U 8
Residuals in seconds of arc
210610 W94 0.5+ 0.3+ 210610 W95 0.0 0.4- 210611 474 0.3- 0.0
210610 W94 0.2- 0.3+ 210611 807 0.0 0.2+ 210611 474 0.1- 0.5-
210610 W94 0.2+ 0.6+ 210611 807 0.2- 0.6- 210611 474 0.5+ 0.6+
210610 W95 0.3- 2.1- 210611 807 0.2+ 0.4+
210610 W95 0.3- 0.9+ 210611 474 0.1- 0.1-
Ephemeris:
2021 LL5 a,e,i = 1.79, 0.41, 5 q = 1.0625
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2021 05 14 13 22 30.9 +11 26 19 0.1075 1.0927 137.8 38.4 22.1
...
2021 05 29 13 55 46.8 -05 01 06 0.06783 1.0669 140.7 37.0 21.0
...
2021 06 06 14 42 34.3 -23 24 56 0.05499 1.0624 149.4 29.1 20.3
...
2021 06 12 15 45 13.0 -39 52 06 0.05332 1.0636 153.8 24.9 20.2
2021 06 13 15 58 35.2 -42 20 28 0.05383 1.0641 153.8 24.9 20.2
2021 06 14 16 12 45.8 -44 38 39 0.05457 1.0648 153.5 25.2 20.2
...
2021 06 20 17 48 11.6 -53 54 18 0.06309 1.0710 149.5 28.8 20.7
...
2021 06 28 19 36 56.7 -55 52 44 0.08219 1.0849 145.0 32.5 21.4
...
2021 07 13 21 00 43.8 -50 46 55 0.1301 1.1268 146.0 30.3 22.4
M. P. C. Staff (C) Copyright 2021 MPC M.P.E.C. 2021-L138
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