MPEC 2021-G160 : 2021 GL7
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M.P.E.C. 2021-G160 Issued 2021 April 12, 06:43 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 GL7
Observations:
K21G07L* C2021 04 10.20070110 14 21.68 -16 12 54.0 20.91GVEG160G96
K21G07L C2021 04 10.20583110 14 16.48 -16 12 42.2 20.90GVEG160G96
K21G07L C2021 04 10.21096610 14 11.21 -16 12 30.3 20.31GVEG160G96
K21G07L C2021 04 10.21609410 14 06.03 -16 12 19.0 21.26GVEG160G96
K21G07L KC2021 04 10.22930810 13 52.46 -16 11 49.6 20.73GVEG160G96
K21G07L KC2021 04 10.23023510 13 51.52 -16 11 47.5 20.70GVEG160G96
K21G07L KC2021 04 10.23116110 13 50.58 -16 11 45.2 20.93GVEG160G96
K21G07L KC2021 04 10.23208910 13 49.64 -16 11 43.1 20.71GVEG160G96
K21G07L mC2021 04 10.23276110 13 48.94 -16 11 41.3 20.97GVEG160G96
K21G07L mC2021 04 10.23317010 13 48.53 -16 11 41.0 21.09GVEG160G96
K21G07L mC2021 04 10.23427310 13 47.42 -16 11 37.7 20.15GVEG160G96
K21G07L mC2021 04 10.23467810 13 46.98 -16 11 37.3 20.68GVEG160G96
K21G07L KC2021 04 10.25276910 13 28.25 -16 10 56.8 20.7 GVEG160H01
K21G07L KC2021 04 10.25969210 13 21.20 -16 10 40.7 20.9 GVEG160H01
K21G07L KC2021 04 10.26821010 13 12.50 -16 10 21.1 20.7 GVEG160H01
K21G07L KC2021 04 10.27448410 13 06.09 -16 10 06.7 20.9 GVEG160H01
K21G07L KC2021 04 10.30424410 12 36.02 -16 08 56.0 21.79GVEG160I52
K21G07L KC2021 04 10.30592410 12 34.21 -16 08 52.3 21.03GVEG160I52
K21G07L KC2021 04 10.30760510 12 32.52 -16 08 48.2 21.23GVEG160I52
K21G07L KC2021 04 10.30928610 12 30.81 -16 08 44.6 22.05GVEG160I52
K21G07L 4C2021 04 10.89197 10 02 45.19 -15 45 32.7 20.6 GVEG160J04
K21G07L 4C2021 04 10.89935 10 02 37.40 -15 45 13.6 20.6 GVEG160J04
K21G07L |C2021 04 11.02350 10 00 30.69 -15 38 44.6 21.2 VuEG160807
K21G07L |C2021 04 11.02817 10 00 25.77 -15 38 32.4 21.2 VuEG160807
K21G07L |C2021 04 11.03285 10 00 20.81 -15 38 20.8 21.2 VuEG160807
K21G07L KC2021 04 11.11879209 58 52.95 -15 35 53.9 20.53GVEG160I52
K21G07L KC2021 04 11.12175409 58 49.86 -15 35 45.9 20.34GVEG160I52
K21G07L KC2021 04 11.12472709 58 46.71 -15 35 38.3 20.56GVEG160I52
K21G07L KC2021 04 11.12770209 58 43.51 -15 35 31.0 20.44GVEG160I52
K21G07L KC2021 04 11.32847909 55 15.75 -15 25 00.0 20.5 GVEG160474
K21G07L KC2021 04 11.32994809 55 14.11 -15 24 56.5 21.1 GVEG160474
K21G07L KC2021 04 11.33141809 55 12.61 -15 24 52.9 20.7 GVEG160474
K21G07L mC2021 04 12.16471109 40 33.90 -14 46 25.2 21.37GVEG160G96
K21G07L mC2021 04 12.16692609 40 31.47 -14 46 18.3 20.90GVEG160G96
K21G07L mC2021 04 12.16744609 40 30.91 -14 46 16.8 20.82GVEG160G96
K21G07L mC2021 04 12.16796709 40 30.33 -14 46 15.2 21.23GVEG160G96
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.
0.61-m f/6.5 astrograph + CCD.
G96 Mt. Lemmon Survey. Observer G. J. Leonard. 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.
H01 Magdalena Ridge Observatory, Socorro. Observers W. H. Ryan, E. V. Ryan.
Measurer W. H. Ryan. 2.4-m f/8.9 Ritchey-Chretien + 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.
J04 ESA Optical Ground Station, Tenerife. Observer P. Ruiz. Measurers A.
Knofel, D. Koschny, M. Busch, M. Micheli, E. Schwab, R. Kresken. 1.0-m
f/4.4 reflector + CCD.
Orbital elements:
2021 GL7 Earth MOID = 0.0527 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5 Bell
M 167.69207 (2000.0) P Q
n 1.04607890 Peri. 350.20385 +0.87691541 +0.47998845
a 0.9610805 Node 341.04892 -0.43558513 +0.77153718
e 0.5539664 Incl. 4.43424 -0.20318700 +0.41754218
P 0.94 H 24.02 G 0.15 U 7
Residuals in seconds of arc
210410 G96 1.0- 0.3- 210410 H01 0.3- 0.0- 210411 807 0.5- 0.3-
210410 G96 0.3- 0.0+ 210410 H01 0.1- 0.1+ 210411 I52 0.0- 0.4-
210410 G96 0.6- 0.4+ 210410 H01 0.1- 0.1+ 210411 I52 0.6+ 0.0-
210410 G96 0.4+ 0.2+ 210410 H01 0.2- 0.1- 210411 I52 0.8+ 0.1-
210410 G96 0.3- 0.2- 210410 I52 (1.6+ 0.5+) 210411 I52 0.1+ 0.5-
210410 G96 0.2- 0.3- 210410 I52 0.2+ 0.2+ 210411 474 0.4+ 0.8+
210410 G96 0.1- 0.1- 210410 I52 0.5+ 0.5+ 210411 474 0.8- 0.4+
210410 G96 0.1+ 0.1- 210410 I52 0.5+ 0.0+ 210411 474 0.1+ 0.0+
210410 G96 0.1- 0.2+ 210410 J04 0.3+ 0.3- 210412 G96 0.1+ 0.0+
210410 G96 0.1- 0.4- 210410 J04 0.1+ 0.3+ 210412 G96 0.1- 0.1+
210410 G96 0.3+ 0.4+ 210411 807 0.6- 0.2- 210412 G96 0.1+ 0.0-
210410 G96 0.1- 0.1- 210411 807 0.4- 0.0+ 210412 G96 0.0+ 0.0-
Ephemeris:
2021 GL7 a,e,i = 0.96, 0.55, 4 q = 0.4287
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2021 03 13 13 30 03.3 -15 35 25 0.3369 1.2853 145.3 26.1 23.4
...
2021 03 28 12 38 31.8 -17 47 43 0.1967 1.1889 164.8 12.7 21.6
...
2021 04 05 11 28 47.7 -18 01 19 0.1398 1.1292 155.6 21.5 21.1
...
2021 04 11 10 00 54.6 -15 40 06 0.1132 1.0803 131.4 44.1 21.2
2021 04 12 09 43 30.0 -14 53 48 0.1108 1.0718 126.4 48.8 21.2
2021 04 13 09 25 38.1 -14 00 29 0.1089 1.0633 121.2 53.7 21.3
...
2021 04 19 07 40 09.2 -07 03 41 0.1117 1.0097 89.6 84.0 22.2
...
2021 04 27 05 57 42.5 +01 18 54 0.1449 0.9329 55.9 116.8 24.3
...
2021 05 12 04 21 12.9 +08 58 47 0.2550 0.7725 18.4 155.6 30.1
M. P. C. Staff (C) Copyright 2021 MPC M.P.E.C. 2021-G160
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