MPEC 2021-G39 : 2021 GJ1
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M.P.E.C. 2021-G39 Issued 2021 April 4, 22:51 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 GJ1
Observations:
K21G01J* C2021 04 03.27480512 26 34.38 +06 15 25.1 19.08GVEG039G96
K21G01J C2021 04 03.27993712 26 34.53 +06 16 59.4 19.20GVEG039G96
K21G01J C2021 04 03.28505612 26 34.66 +06 18 33.8 19.18GVEG039G96
K21G01J C2021 04 03.29017412 26 34.81 +06 20 07.2 19.10GVEG039G96
K21G01J KC2021 04 03.32959 12 26 36.06 +06 32 03.3 19.1 GVEG039V01
K21G01J KC2021 04 03.36105 12 26 37.10 +06 41 38.9 19.6 GVEG039V01
K21G01J mC2021 04 03.36324112 26 36.96 +06 42 25.1 18.96GVEG039I52
K21G01J mC2021 04 03.36355012 26 36.96 +06 42 30.9 19.02GVEG039I52
K21G01J mC2021 04 03.36385412 26 36.98 +06 42 36.5 18.83GVEG039I52
K21G01J mC2021 04 03.36415812 26 36.98 +06 42 42.0 19.16GVEG039I52
K21G01J KC2021 04 03.39520 12 26 38.20 +06 52 01.8 18.6 GVEG039V01
K21G01J KC2021 04 03.84966 12 27 03.93 +09 09 02.8 19.1 GVEG039A17
K21G01J KC2021 04 03.85841 12 27 04.23 +09 11 39.5 19.2 GVEG039A17
K21G01J KC2021 04 03.86720 12 27 04.59 +09 14 17.4 19.0 GVEG039A17
K21G01J KC2021 04 03.92711212 27 06.74 +09 32 14.1 18.9 GVEG039104
K21G01J KC2021 04 03.93157512 27 06.80 +09 33 33.7 18.7 GVEG039104
K21G01J KC2021 04 03.94598112 27 07.65 +09 37 43.6 19.2 GVEG039Z99
K21G01J KC2021 04 03.94906312 27 07.76 +09 38 38.8 19.4 GVEG039Z99
K21G01J KC2021 04 03.95215012 27 07.86 +09 39 34.1 19.4 GVEG039Z99
K21G01J KC2021 04 03.96650 12 27 07.87 +09 43 52.5 18.6 GVEG039K87
K21G01J KC2021 04 03.97466 12 27 08.16 +09 46 18.8 19.0 GVEG039K87
K21G01J KC2021 04 03.98930612 27 09.12 +09 50 43.6 20.1 GVEG039I93
K21G01J KC2021 04 03.99203612 27 09.25 +09 51 31.7 VEG039I93
K21G01J KC2021 04 03.99458712 27 09.38 +09 52 11.9 19.0 GVEG039J95
K21G01J KC2021 04 03.99476712 27 09.28 +09 52 20.7 19.4 GVEG039I93
K21G01J KC2021 04 03.99703012 27 09.45 +09 52 55.5 19.3 GVEG039J95
K21G01J KC2021 04 04.00064012 27 08.86 +09 54 04.2 19.4 GVEG039L01
K21G01J KC2021 04 04.00187512 27 09.65 +09 54 21.4 19.1 GVEG039J95
K21G01J KC2021 04 04.00220012 27 08.91 +09 54 32.0 19.4 GVEG039L01
K21G01J KC2021 04 04.00361912 27 09.70 +09 54 52.7 18.9 GVEG039J95
K21G01J KC2021 04 04.00375912 27 08.96 +09 54 59.7 19.3 GVEG039L01
K21G01J KC2021 04 04.00531712 27 09.03 +09 55 27.3 19.6 GVEG039L01
K21G01J KC2021 04 04.00711912 27 09.10 +09 55 59.3 19.4 GVEG039L01
K21G01J KC2021 04 04.01233 12 27 09.91 +09 57 33.8 18.6 GVEG039958
K21G01J KC2021 04 04.02224 12 27 10.24 +10 00 30.0 18.7 GVEG039958
K21G01J KC2021 04 04.03226 12 27 10.55 +10 03 27.5 19.0 GVEG039958
K21G01J KC2021 04 04.14360 12 27 19.21 +10 36 21.4 19.3 GVEG039V01
K21G01J KC2021 04 04.14993912 27 19.66 +10 38 20.5 19.19GVEG039I52
K21G01J KC2021 04 04.15068112 27 19.70 +10 38 33.9 18.72GVEG039I52
K21G01J KC2021 04 04.15142212 27 19.74 +10 38 46.6 18.60GVEG039I52
K21G01J KC2021 04 04.17653 12 27 20.43 +10 46 05.2 21.5 GVEG039V01
K21G01J KC2021 04 04.22827 12 27 21.42 +11 01 20.9 19.2 RqEG039H36
K21G01J KC2021 04 04.23782 12 27 21.71 +11 04 08.6 19.1 RqEG039734
K21G01J KC2021 04 04.24019 12 27 21.82 +11 04 50.2 19.1 RqEG039734
K21G01J KC2021 04 04.24160 12 27 21.82 +11 05 15.0 19.1 RqEG039H36
K21G01J KC2021 04 04.24216 12 27 21.84 +11 05 24.8 19.3 RqEG039734
K21G01J KC2021 04 04.25914 12 27 22.35 +11 10 22.5 19.2 RqEG039H36
K21G01J C2021 04 04.68147 12 27 44.39 +13 12 37.7 19.6 GVEG039N88
K21G01J C2021 04 04.68183 12 27 44.40 +13 12 43.1 19.5 GVEG039N88
K21G01J C2021 04 04.68222 12 27 44.41 +13 12 49.9 19.1 GVEG039N88
K21G01J C2021 04 04.68259 12 27 44.44 +13 12 56.3 19.5 GVEG039N88
K21G01J C2021 04 04.68297 12 27 44.40 +13 13 03.3 19.3 GVEG039N88
K21G01J KC2021 04 04.71359 12 27 45.41 +13 21 42.8 19.1 GVEG039N82
K21G01J KC2021 04 04.71916 12 27 45.61 +13 23 18.5 19.1 GVEG039N82
K21G01J KC2021 04 04.72471 12 27 45.80 +13 24 54.9 19.5 GVEG039N82
K21G01J KC2021 04 04.79917812 27 51.11 +13 46 05.2 18.6 RVEG039K61
K21G01J KC2021 04 04.79997812 27 51.14 +13 46 18.8 18.8 RVEG039K61
K21G01J KC2021 04 04.80157312 27 51.23 +13 46 45.9 18.8 RVEG039K61
K21G01J KC2021 04 04.80226912 27 51.27 +13 46 57.8 18.8 RVEG039K61
K21G01J KC2021 04 04.80336212 27 51.32 +13 47 16.5 18.8 RVEG039K61
K21G01J KC2021 04 04.81030 12 27 51.75 +13 49 13.6 19.3 GVEG039A17
K21G01J KC2021 04 04.81889 12 27 52.03 +13 51 39.5 19.9 GVEG039A17
K21G01J KC2021 04 04.82744 12 27 52.38 +13 54 05.1 19.9 GVEG039A17
K21G01J 1C2021 04 04.84899612 27 53.07 +14 00 14.9 VEG039246
K21G01J 1C2021 04 04.84927012 27 53.12 +14 00 20.8 VEG039246
K21G01J 1C2021 04 04.84948612 27 53.03 +14 00 23.0 19.6 GVEG039246
K21G01J 1C2021 04 04.84992212 27 53.07 +14 00 31.1 VEG039246
K21G01J KC2021 04 04.86287412 27 53.80 +14 04 13.1 19.8 GVEG039L06
K21G01J KC2021 04 04.86797712 27 53.96 +14 05 39.7 19.5 GVEG039L06
K21G01J KC2021 04 04.87359012 27 54.15 +14 07 15.4 19.3 GVEG039L06
K21G01J KC2021 04 04.88291312 27 54.54 +14 09 54.4 19.6 GVEG039K38
K21G01J KC2021 04 04.88817912 27 54.37 +14 11 21.4 19.1 GVEG039C47
K21G01J KC2021 04 04.89858312 27 55.07 +14 14 19.6 18.8 GVEG039K38
K21G01J KC2021 04 04.90054612 27 54.80 +14 14 50.9 19.6 GVEG039C47
K21G01J KC2021 04 04.91634812 27 55.33 +14 19 19.1 19.0 GVEG039C47
Observer details:
104 San Marcello Pistoiese. Observers P. Bacci, M. Maestripieri. Measurers
P. Bacci, L. Tesi, G. Fagioli. 0.60-m reflector + CCD.
246 Klet Observatory-KLENOT. Observers M. Tichy, J. Ticha, M. Honkova.
Measurer M. Tichy. 1.06-m f/2.7 reflector + 2048x2048 CCD.
734 Farpoint Observatory, Eskridge. Observers G. Hug, D. Cromer, D. Goodin,
R. Valentine. Measurer D. Cromer. 0.7-m reflector + CCD.
958 Observatoire de Dax. Observer P. Dupouy. 0.32-m f/4.1 Schmidt-
Cassegrain.
A17 Guidestar Observatory, Weinheim. Observers M. Emmerich, S. Melchert.
0.36-m f/6.0 Schmidt-Cassegrain + CCD.
C47 Nonndorf. Observer G. Dangl. 0.25-m f/4.8 reflector + CCD.
G96 Mt. Lemmon Survey. Observer K. W. Wierzchos. 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.
H36 Sandlot Observatory, Scranton. Observer G. Hug. 0.56-m reflector + CCD.
I52 Steward Observatory, Mt. Lemmon Station. Observer H. Groeller. 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.
K38 M57 Observatory, Saltrio. Observer G. Baj. 0.3-m f/6.54 Ritchey-Chretien
+ CCD.
K61 Rokycany Observatory. Observer M. Adamovsky. 0.51-m f/6.8 reflector +
CCD.
K87 Dettelbach Vineyard Observatory. Observer B. Haeusler. 0.3-m f/8.0
Schmidt-Cassegrain + CCD.
L01 Visnjan Observatory, Tican. Observers K. Korlevic, D. Pujagic, V. Dobos.
Measurers D. Pujagic, K. Korlevic. 1.0-m f/2.9 reflector + CCD.
L06 Sormano 2 Observatory, Bellagio Via Lattea. Observer G. Ventre. Measurer
P. Sicoli. 0.36-m Schmidt-Cassegrain + CCD.
N82 Multa Observatory. Observer L. Elenin. 0.4-m f/1.25 reflector + CCD.
N88 Xingming Observatory #3, Nanshan. Observer X. Gao. Measurer Q.-Z. Ye.
0.6-m f/8 Ritchey-Chretien + CCD.
V01 Mountainville Observatory, Alpine. Observer B. Sheets. 0.36-m reflector
+ CCD.
Z99 Clixby Observatory, Cleethorpes. Observer A. Mickleburgh. 0.36-m f/8
Schmidt-Cassegrain + CCD.
Orbital elements:
2021 GJ1 Earth MOID = 0.1483 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5 Veres
M 303.26755 (2000.0) P Q
n 0.54732641 Peri. 358.31793 -0.98474359 +0.10388044
a 1.4801479 Node 191.10674 -0.14999358 -0.91343329
e 0.2242414 Incl. 46.44320 -0.08821558 +0.39350792
P 1.80 H 22.41 G 0.15 U 8
Residuals in seconds of arc
210403 G96 0.0- 0.1- 210404 L01 0.0+ 0.0+ 210404 N82 0.2- 0.5-
210403 G96 0.1+ 0.0+ 210404 J95 0.4+ 0.4- 210404 N82 0.0- 0.3-
210403 G96 0.2- 0.4+ 210404 L01 0.0- 0.1- 210404 N82 0.0- 1.0+
210403 G96 0.1- 0.1- 210404 J95 0.1+ 0.1- 210404 K61 0.5- 1.4+
210403 V01 0.3- 0.4+ 210404 L01 0.1- 0.0+ 210404 K61 0.5- 1.1+
210403 V01 0.4+ 0.4+ 210404 L01 0.2+ 0.1- 210404 K61 0.1- 1.2+
210403 I52 0.1+ 0.2- 210404 L01 0.4+ 0.3- 210404 K61 0.0+ 1.1+
210403 I52 0.2- 0.1- 210404 958 0.0- 0.0- 210404 K61 0.1+ 1.2+
210403 I52 0.1+ 0.0+ 210404 958 0.2+ 0.1- 210404 A17 0.3+ 0.1+
210403 I52 0.1- 0.1- 210404 958 0.0- 0.6- 210404 A17 0.5- 0.7-
210403 V01 0.0+ 0.4- 210404 V01 0.0- 0.2- 210404 A17 (0.4- 1.0-)
210403 A17 0.0- 0.3+ 210404 I52 0.1- 0.2- 210404 246 0.4+ 0.2+
210403 A17 0.4- 0.1- 210404 I52 0.1+ 0.0+ 210404 246 (1.0+ 1.4+)
210403 A17 0.1+ 0.2+ 210404 I52 0.3+ 0.4- 210404 246 0.4- 0.1-
210403 104 (1.7+ 0.1-) 210404 V01 0.1+ 0.8+ 210404 246 0.1- 0.6+
210403 104 0.5+ 0.4- 210404 H36 0.2+ 0.9+ 210404 L06 0.1- 0.3+
210403 Z99 0.3+ 0.2- 210404 734 0.1- 0.6+ 210404 L06 0.4- 0.0-
210403 Z99 0.3+ 0.1- 210404 734 0.5+ 0.5+ 210404 L06 0.5- 0.2+
210403 Z99 0.2+ 0.2+ 210404 H36 0.1+ 0.4+ 210404 K38 0.2+ 0.6+
210403 K87 0.8- 0.3- 210404 734 0.1- 0.4+ 210404 C47 0.2- 0.1+
210403 K87 0.7- 0.5+ 210404 H36 0.0+ 0.5- 210404 K38 0.2+ 0.3-
210403 I93 0.3- 0.2+ 210404 N88 0.1+ 0.5+ 210404 K38 0.2+ 0.3-
210403 I93 0.4+ 0.2- 210404 N88 0.2+ 0.2- 210404 C47 0.1- 0.3-
210403 J95 0.0- 0.1- 210404 N88 0.1+ 0.2- 210404 C47 0.2- 0.0-
210403 I93 0.5- 0.1+ 210404 N88 0.3+ 0.2-
210403 J95 0.2- 0.0- 210404 N88 0.5- 0.3+
Ephemeris:
2021 GJ1 a,e,i = 1.48, 0.22, 46 q = 1.1482
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2021 03 05 11 59 06.6 -68 12 49 0.4059 1.1645 105.0 55.4 22.8
...
2021 03 20 12 14 30.3 -51 31 08 0.2288 1.1511 128.1 42.9 21.2
...
2021 03 28 12 21 22.8 -25 36 20 0.1613 1.1484 157.2 19.7 19.7
...
2021 04 03 12 26 20.4 +04 51 10 0.1514 1.1485 168.5 10.0 19.3
2021 04 04 12 27 09.7 +09 54 12 0.1543 1.1487 163.3 14.5 19.5
2021 04 05 12 27 59.1 +14 43 10 0.1584 1.1490 158.2 18.9 19.7
...
2021 04 11 12 33 00.5 +36 58 55 0.2029 1.1515 133.6 39.1 20.8
...
2021 04 19 12 40 15.1 +52 09 42 0.2898 1.1575 115.1 51.8 21.9
...
2021 05 04 12 56 18.2 +62 23 12 0.4707 1.1770 98.9 57.8 23.2
M. P. C. Staff (C) Copyright 2021 MPC M.P.E.C. 2021-G39
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