MPEC 2021-M43 : 2021 LJ9
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M.P.E.C. 2021-M43 Issued 2021 June 18, 04:17 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 LJ9
Observations:
K21L09J*KC2021 06 14.13441 18 54 33.50 -44 05 14.2 18.2 GVEM043W94
K21L09J KC2021 06 14.14005 18 54 33.43 -44 04 21.1 18.5 GVEM043W94
K21L09J KC2021 06 14.14575 18 54 33.40 -44 03 27.0 17.5 GVEM043W94
K21L09J KC2021 06 14.20566 18 54 32.62 -43 53 55.0 18.5 GVEM043W95
K21L09J KC2021 06 14.21098 18 54 32.57 -43 53 03.6 19.6 GVEM043W95
K21L09J KC2021 06 14.21624 18 54 32.48 -43 52 12.8 19.2 GVEM043W95
K21L09J KC2021 06 14.47669618 54 44.39 -43 08 34.4 20.0 GVEM043474
K21L09J KC2021 06 14.47760518 54 44.38 -43 08 25.4 19.9 GVEM043474
K21L09J KC2021 06 14.47851518 54 44.38 -43 08 16.5 20.0 GVEM043474
K21L09J KC2021 06 14.47942418 54 44.42 -43 08 07.4 20.0 GVEM043474
K21L09J KC2021 06 15.02641218 55 06.28 -41 35 20.8 18.7 GXEM043Y00
K21L09J KC2021 06 15.02775518 55 06.24 -41 35 06.5 19.7 GXEM043Y00
K21L09J KC2021 06 15.02932318 55 06.29 -41 34 50.9 20.3 GXEM043Y00
K21L09J KC2021 06 17.20176 18 56 04.05 -34 41 27.7 19.0 GVEM043W95
K21L09J KC2021 06 17.20710 18 56 03.92 -34 40 21.8 VEM043W95
K21L09J KC2021 06 17.21241 18 56 03.73 -34 39 16.2 19.5 GVEM043W95
K21L09J KC2021 06 17.56868 18 56 13.95 -33 24 10.5 19.1 VqEM043E23
K21L09J KC2021 06 17.58257 18 56 13.59 -33 21 15.0 19.0 VqEM043E23
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.
E23 Arcadia. Observer A. Hidas. 0.35-m f/1.9 reflector + 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.
Y00 SONEAR Observatory, Oliveira. Observers C. Jacques, E. Pimentel, J.
Barros. Measurer C. Jacques. 0.45-m f/2.9 reflector + CCD.
Orbital elements:
2021 LJ9 Earth MOID = 0.0650 AU
Epoch 2021 July 5.0 TT = JDT 2459400.5 Bell
M 350.33533 (2000.0) P Q
n 0.66118384 Peri. 28.31922 +0.45239093 +0.84649885
a 1.3049320 Node 269.80995 -0.86202208 +0.33437759
e 0.1851359 Incl. 16.30098 -0.22860529 +0.41428411
P 1.49 H 23.61 G 0.15 U 9
Residuals in seconds of arc
210614 W94 0.5+ 0.1- 210614 474 0.0 0.1- 210615 Y00 0.0 0.4+
210614 W94 0.1+ 0.2- 210614 474 0.2- 0.1- 210617 W95 0.4- 0.3-
210614 W94 0.2+ 0.1+ 210614 474 0.2- 0.0 210617 W95 0.2- 0.1-
210614 W95 0.1- 0.1+ 210614 474 0.2+ 0.2+ 210617 W95 0.7- 0.1-
210614 W95 0.4+ 0.1+ 210615 Y00 0.1- 0.1- 210617 E23 0.6+ 0.1+
210614 W95 0.4+ 0.1+ 210615 Y00 0.6- 0.6+ 210617 E23 0.1- 0.1+
Ephemeris:
2021 LJ9 a,e,i = 1.30, 0.19, 16 q = 1.0633
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2021 05 19 18 04 06.6 -70 52 49 0.2113 1.1454 124.8 46.5 22.3
...
2021 06 03 18 41 53.2 -62 59 53 0.1339 1.1125 134.7 40.4 21.1
...
2021 06 11 18 52 08.4 -51 27 09 0.09762 1.0978 146.2 31.0 20.1
...
2021 06 17 18 55 56.8 -35 22 39 0.07667 1.0883 159.9 18.7 19.2
2021 06 18 18 56 20.9 -31 51 31 0.07407 1.0868 162.2 16.6 19.0
2021 06 19 18 56 41.8 -28 05 46 0.07181 1.0854 164.2 14.7 18.9
...
2021 06 25 18 57 55.4 -02 05 43 0.06660 1.0777 156.3 22.3 19.0
...
2021 07 03 18 58 01.5 +28 01 36 0.08175 1.0700 128.9 47.7 20.1
...
2021 07 18 18 57 43.3 +52 02 52 0.1398 1.0634 106.0 66.7 21.8
M. P. C. Staff (C) Copyright 2021 MPC M.P.E.C. 2021-M43
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