MPEC 2021-L156 : 2021 LL6
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M.P.E.C. 2021-L156 Issued 2021 June 14, 08:23 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
2021 LL6
Observations:
K21L06L* C2021 06 13.27740016 13 39.48 -22 13 46.4 19.74GVEL156G96
K21L06L C2021 06 13.28301316 13 44.05 -22 13 59.4 20.11GVEL156G96
K21L06L C2021 06 13.28861816 13 48.63 -22 14 12.2 19.82GVEL156G96
K21L06L KC2021 06 13.31898716 14 13.66 -22 15 19.5 20.19GVEL156I52
K21L06L KC2021 06 13.32043816 14 14.90 -22 15 22.0 21.40GVEL156I52
K21L06L KC2021 06 13.32188916 14 16.08 -22 15 26.0 19.89GVEL156I52
K21L06L KC2021 06 13.32334016 14 17.25 -22 15 29.1 19.97GVEL156I52
K21L06L KC2021 06 13.93580816 25 05.32 -22 41 57.4 19.5 GVEL156I93
K21L06L KC2021 06 13.94581116 25 16.07 -22 42 24.5 19.8 GVEL156I93
K21L06L KC2021 06 13.98537416 25 59.00 -22 44 10.5 20.8 GVEL156I93
K21L06L KC2021 06 14.01983016 26 37.84 -22 45 52.3 20.1 GVEL156J95
K21L06L KC2021 06 14.02682416 26 45.75 -22 46 10.4 20.6 GVEL156J95
K21L06L KC2021 06 14.11791716 28 38.89 -22 45 29.2 XEL156Y00
K21L06L KC2021 06 14.12387216 28 45.57 -22 45 44.0 19.4 GXEL156Y00
K21L06L KC2021 06 14.13011016 28 52.60 -22 45 59.5 19.3 GXEL156Y00
K21L06L KC2021 06 14.18914 16 30 18.33 -22 53 16.9 19.5 GVEL156H36
K21L06L KC2021 06 14.19491 16 30 25.07 -22 53 34.3 19.6 GVEL156H36
K21L06L KC2021 06 14.20066 16 30 31.91 -22 53 49.9 19.6 GVEL156H36
K21L06L KC2021 06 14.21266916 30 43.66 -22 54 26.8 19.3 VuEL156H21
K21L06L KC2021 06 14.21553216 30 47.07 -22 54 34.9 19.2 VuEL156H21
K21L06L KC2021 06 14.21839416 30 50.48 -22 54 42.7 19.7 VuEL156H21
K21L06L KC2021 06 14.22211216 30 54.93 -22 54 52.5 19.6 VuEL156H21
K21L06L KC2021 06 14.23935716 31 23.17 -22 55 19.5 19.50GVEL156I52
K21L06L KC2021 06 14.24083416 31 24.95 -22 55 24.2 VEL156I52
K21L06L KC2021 06 14.24230916 31 26.62 -22 55 28.6 VEL156I52
K21L06L KC2021 06 14.24378416 31 28.45 -22 55 33.1 19.01GVEL156I52
Observer details:
G96 Mt. Lemmon Survey. Observer D. Rankin. Measurers E. J. Christensen, G.
A. Farneth, D. C. Fuls, A. R. Gibbs, A. D. Grauer, H. Groeller, R. A.
Kowalski, S. M. Larson, G. J. Leonard, T. A. Pruyne, D. Rankin, R. L.
Seaman, F. C. Shelly, K. W. Wierzchos. 1.5-m reflector + 10K CCD.
H21 Astronomical Research Observatory, Westfield. Observer R. Holmes.
Measurers T. Linder, R. Holmes, L. Horn. 0.81-m f/4.0 astrograph + CCD.
H36 Sandlot Observatory, Scranton. Observer G. Hug. 0.56-m reflector + CCD.
I52 Steward Observatory, Mt. Lemmon Station. Observer D. C. Fuls. Measurers
E. J. Christensen, G. A. Farneth, D. C. Fuls, A. R. Gibbs, A. D. Grauer,
H. Groeller, R. A. Kowalski, S. M. Larson, G. J. Leonard, T. A. Pruyne, D.
Rankin, R. L. Seaman, F. C. Shelly, K. W. Wierzchos. 1.0-m reflector +
CCD.
I93 St Pardon de Conques. Observer F. Losse. 0.40-m f/3.7 reflector + CCD.
J95 Great Shefford. Observer P. Birtwhistle. 0.41-m f/6.3 Schmidt-Cassegrain
+ 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 LL6 Earth MOID = 0.0001 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5 Bell
M 300.92778 (2000.0) P Q
n 0.28475652 Peri. 29.32171 +0.46052293 +0.88763792
a 2.2881628 Node 268.09942 -0.81521559 +0.42107143
e 0.5741023 Incl. 0.24025 -0.35120105 +0.18654163
P 3.46 H 26.85 G 0.15 U 8
Residuals in seconds of arc
210613 G96 0.1- 0.3+ 210613 I93 2.1+ 0.1- 210614 H21 0.1- 0.0
210613 G96 0.1- 0.0 210614 J95 0.3- 0.2+ 210614 H21 0.0 0.2-
210613 G96 0.1+ 0.1- 210614 J95 0.2+ 0.1- 210614 H21 0.0 0.1-
210613 I52 0.1+ 0.1- 210614 Y00 0.1+ 0.0 210614 H21 0.2+ 0.3+
210613 I52 0.5+ 0.5+ 210614 Y00 0.0 0.3+ 210614 I52 0.2+ 0.3+
210613 I52 0.1+ 0.4- 210614 Y00 0.0 0.5+ 210614 I52 0.5+ 0.0
210613 I52 0.4- 0.3- 210614 H36 0.5+ 0.1- 210614 I52 0.8- 0.1-
210613 I93 0.2- 0.1+ 210614 H36 0.4- 0.6- 210614 I52 0.1+ 0.3-
210613 I93 0.1+ 0.4+ 210614 H36 0.1+ 0.5+
Ephemeris:
2021 LL6 a,e,i = 2.29, 0.57, 0 q = 0.9745
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2021 05 15 15 11 54.8 -18 40 21 0.2143 1.2248 176.4 2.9 24.2
...
2021 05 30 15 15 56.2 -19 01 17 0.1150 1.1242 163.1 15.2 23.2
...
2021 06 07 15 29 16.5 -19 53 13 0.06728 1.0778 158.7 20.0 22.2
...
2021 06 13 16 09 38.4 -21 59 36 0.03342 1.0475 162.6 16.8 20.5
2021 06 14 16 26 18.3 -22 40 01 0.02807 1.0429 165.6 14.1 20.0
2021 06 15 16 50 57.0 -23 27 18 0.02293 1.0384 170.3 9.5 19.4
...
2021 06 21 00 23 49.3 +03 03 36 0.01819 1.0141 82.9 96.1 21.6
...
2021 06 29 02 08 22.8 +13 48 26 0.06082 0.9901 62.6 114.3 25.2
...
2021 07 14 02 39 53.7 +16 26 18 0.1439 0.9738 68.8 103.3 26.4
M. P. C. Staff (C) Copyright 2021 MPC M.P.E.C. 2021-L156
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