MPEC 2021-R129 : 2021 RG2
The following Minor Planet Electronic Circular may be linked-to from your own Web pages, but must not otherwise be redistributed electronically.A form allowing access to any MPEC is at the bottom of this page.
Read MPEC 2021-R128
Read MPEC 2021-R130
M.P.E.C. 2021-R129 Issued 2021 September 7, 11:10 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 RG2
Observations:
K21R02G*HC2021 09 06.30730023 20 07.80 +23 30 30.9 18.25GVER129703
K21R02G HC2021 09 06.31296023 20 04.13 +23 25 56.8 17.79GVER129703
K21R02G HC2021 09 06.32428723 19 56.91 +23 16 50.7 18.21GVER129703
K21R02G C2021 09 06.35573923 19 36.95 +22 51 26.5 18.06GVER129G96
K21R02G C2021 09 06.37026423 19 27.82 +22 39 40.9 18.06GVER129G96
K21R02G KC2021 09 06.37214423 19 26.62 +22 38 10.3 18.22GVER129703
K21R02G KC2021 09 06.37268323 19 26.25 +22 37 44.2 17.80GVER129703
K21R02G KC2021 09 06.37322223 19 25.96 +22 37 17.7 17.95GVER129703
K21R02G KC2021 09 06.37376123 19 25.62 +22 36 51.5 17.79GVER129703
K21R02G C2021 09 06.37599423 19 24.25 +22 35 02.6 17.91GVER129G96
K21R02G C2021 09 06.68832 23 17 18.67 +18 21 55.1 17.9 GVER129N88
K21R02G C2021 09 06.68859 23 17 18.51 +18 21 41.6 17.9 GVER129N88
K21R02G C2021 09 06.68887 23 17 18.36 +18 21 28.8 18.1 GVER129N88
K21R02G C2021 09 06.68913 23 17 18.21 +18 21 16.3 18.0 GVER129N88
K21R02G C2021 09 06.68940 23 17 18.05 +18 21 02.9 17.9 GVER129N88
K21R02G 1C2021 09 06.79472 23 16 37.68 +16 55 03.3 18.5 VVER129033
K21R02G 1C2021 09 06.79502 23 16 37.53 +16 54 48.7 18.3 VVER129033
K21R02G 1C2021 09 06.79532 23 16 37.38 +16 54 34.3 18.4 VVER129033
K21R02G KC2021 09 06.79996723 16 33.07 +16 51 21.0 17.4 GVER129L18
K21R02G KC2021 09 06.80267323 16 31.65 +16 49 11.0 17.7 GVER129L18
K21R02G 1C2021 09 06.80474923 16 32.98 +16 47 18.5 VER129246
K21R02G 1C2021 09 06.80513523 16 32.83 +16 47 00.0 VER129246
K21R02G 1C2021 09 06.80522323 16 32.80 +16 46 55.7 VER129246
K21R02G 1C2021 09 06.80531123 16 32.72 +16 46 51.6 VER129246
K21R02G KC2021 09 06.80535823 16 30.26 +16 47 02.3 17.5 GVER129L18
K21R02G 1C2021 09 06.80539823 16 32.70 +16 46 47.1 VER129246
K21R02G 1C2021 09 06.80548523 16 32.65 +16 46 43.7 VER129246
K21R02G 1C2021 09 06.80557223 16 32.60 +16 46 39.3 VER129246
K21R02G 1C2021 09 06.80566023 16 32.54 +16 46 34.9 VER129246
K21R02G KC2021 09 06.81452123 16 29.16 +16 39 47.9 17.8 GXER129595
K21R02G KC2021 09 06.81795723 16 28.46 +16 37 10.6 18.0 GVER129104
K21R02G KC2021 09 06.81830123 16 27.21 +16 36 47.8 18.2 GXER129595
K21R02G KC2021 09 06.82026123 16 27.25 +16 35 21.6 17.8 GVER129104
K21R02G KC2021 09 06.82038123 16 27.35 +16 35 15.2 17.9 GVER129K63
K21R02G KC2021 09 06.82207323 16 25.28 +16 33 48.1 18.3 GXER129595
K21R02G KC2021 09 06.82352823 16 25.70 +16 32 45.9 18.1 GVER129K63
K21R02G KC2021 09 06.82469423 16 25.12 +16 31 49.8 18.1 GVER129K63
K21R02G KC2021 09 06.82486723 16 24.90 +16 31 41.2 18.0 GVER129104
K21R02G KC2021 09 06.82583223 16 23.32 +16 30 49.0 17.9 GXER129595
K21R02G KC2021 09 06.82958923 16 21.37 +16 27 49.7 17.9 GXER129595
K21R02G KC2021 09 06.83724 23 16 15.29 +16 21 29.6 17.5 GXER129G02
K21R02G KC2021 09 06.84505823 16 16.99 +16 15 28.3 17.6 GXER129958
K21R02G KC2021 09 06.84516 23 16 11.15 +16 15 11.8 17.5 GXER129G02
K21R02G KC2021 09 06.84526223 16 15.70 +16 14 51.2 18.0 GVER129Z43
K21R02G KC2021 09 06.84526523 16 14.27 +16 14 37.1 17.9 GVER129Z80
K21R02G KC2021 09 06.84647923 16 13.94 +16 13 38.3 17.9 GVER129J95
K21R02G KC2021 09 06.84745123 16 15.80 +16 13 34.0 17.8 GXER129958
K21R02G KC2021 09 06.84805723 16 13.16 +16 12 23.1 17.7 GVER129J95
K21R02G KC2021 09 06.84858823 16 15.19 +16 12 40.1 18.7 GXER129958
K21R02G KC2021 09 06.84865923 16 14.02 +16 12 09.4 18.0 GVER129Z43
K21R02G KC2021 09 06.84970423 16 12.31 +16 11 05.1 17.8 GVER129J95
K21R02G KC2021 09 06.84984523 16 14.59 +16 11 40.5 17.9 GXER129958
K21R02G KC2021 09 06.85125323 16 11.57 +16 09 50.7 18.0 GVER129J95
K21R02G KC2021 09 06.85211223 16 12.33 +16 09 24.7 18.0 GVER129Z43
K21R02G KC2021 09 06.85221123 16 10.92 +16 09 05.9 18.7 GVER129Z80
K21R02G KC2021 09 06.85284823 16 13.07 +16 09 17.4 18.6 GXER129958
K21R02G KC2021 09 06.85355 23 16 06.70 +16 08 31.4 17.6 GXER129G02
K21R02G KC2021 09 06.85712423 16 10.90 +16 05 54.0 18.5 GXER129958
K21R02G KC2021 09 06.85725 23 16 08.10 +16 05 58.5 16.9 RoER129159
K21R02G KC2021 09 06.86003 23 16 06.59 +16 03 46.5 17.0 RoER129159
K21R02G KC2021 09 06.86377 23 16 04.55 +16 00 47.6 17.2 RoER129159
K21R02G KC2021 09 06.89119 23 15 50.05 +15 38 34.7 18.3 VZER129B91
K21R02G KC2021 09 06.89131123 15 48.59 +15 38 48.4 17.9 GVER129L01
K21R02G IC2021 09 06.89201323 15 48.20 +15 38 14.9 18.0 GVER129L01
K21R02G KC2021 09 06.89270 23 15 49.18 +15 37 22.5 17.9 VZER129B91
K21R02G KC2021 09 06.89292 23 15 49.17 +15 37 32.1 18.3 GVER129G15
K21R02G KC2021 09 06.89303023 15 47.64 +15 37 26.3 18.0 GVER129L01
K21R02G IC2021 09 06.89378423 15 47.23 +15 36 50.3 17.9 GVER129L01
K21R02G KC2021 09 06.89416 23 15 48.44 +15 36 11.9 18.5 VZER129B91
K21R02G KC2021 09 06.89487 23 15 50.81 +15 35 52.1 17.7 GVER129I93
K21R02G IC2021 09 06.89496023 15 46.58 +15 35 54.2 18.0 GVER129L01
K21R02G KC2021 09 06.89658 23 15 46.76 +15 34 44.0 17.8 GVER129K83
K21R02G KC2021 09 06.89724 23 15 49.56 +15 33 59.2 18.1 GVER129I93
K21R02G KC2021 09 06.89753 23 15 46.71 +15 33 50.8 17.9 GVER129G15
K21R02G KC2021 09 06.89961 23 15 48.30 +15 32 06.4 18.2 GVER129I93
K21R02G KC2021 09 06.90056 23 15 44.58 +15 31 34.3 17.8 GVER129K83
K21R02G KC2021 09 06.90243 23 15 44.04 +15 29 57.3 18.2 GVER129G15
K21R02G KC2021 09 06.90454 23 15 42.42 +15 28 24.1 18.0 GVER129K83
K21R02G KC2021 09 06.91244923 15 40.34 +15 21 17.9 18.1 VqER129J69
K21R02G KC2021 09 06.91505723 15 38.97 +15 19 13.4 17.8 VqER129J69
K21R02G KC2021 09 06.91766723 15 37.60 +15 17 08.8 17.9 VqER129J69
K21R02G KC2021 09 06.92027823 15 36.21 +15 15 04.4 18.2 VqER129J69
K21R02G KC2021 09 06.92289523 15 34.83 +15 12 59.7 18.1 VqER129J69
K21R02G KC2021 09 06.92551623 15 33.48 +15 10 54.8 17.8 VqER129J69
K21R02G KC2021 09 06.96222523 15 13.60 +14 41 41.0 17.7 GVER129Z80
K21R02G KC2021 09 06.96800923 15 10.55 +14 37 05.0 17.6 GVER129Z80
K21R02G KC2021 09 06.97379623 15 07.42 +14 32 28.9 18.0 GVER129Z80
K21R02G KC2021 09 07.13896723 14 13.43 +12 22 39.8 18.1 VqER129858
K21R02G KC2021 09 07.14144423 14 12.21 +12 20 44.0 18.0 VqER129858
K21R02G KC2021 09 07.14393123 14 10.98 +12 18 47.3 18.0 VqER129858
K21R02G KC2021 09 07.16309 23 13 57.77 +12 03 33.0 18.0 GVER129734
K21R02G KC2021 09 07.16711 23 13 55.69 +12 00 24.7 17.9 GVER129734
K21R02G KC2021 09 07.17514 23 13 51.48 +11 54 07.6 18.0 GVER129734
K21R02G C2021 09 07.28194 23 12 59.96 +10 30 27.5 17.3 rER129718
K21R02G C2021 09 07.28306 23 12 59.42 +10 29 35.8 17.5 rER129718
K21R02G C2021 09 07.28363 23 12 59.18 +10 29 08.7 17.5 rER129718
K21R02G C2021 09 07.28706 23 12 57.33 +10 26 29.6 17.9 rER129718
K21R02G C2021 09 07.28768 23 12 56.96 +10 25 59.8 17.6 rER129718
K21R02G C2021 09 07.28830 23 12 56.61 +10 25 29.9 17.6 rER129718
K21R02G C2021 09 07.28892 23 12 56.23 +10 25 01.5 17.8 rER129718
Observer details:
033 Karl Schwarzschild Observatory, Tautenburg. Observers S. Melnikov, C.
Hoegner, U. Laux, F. Ludwig, B. Stecklum. Measurer B. Stecklum. 1.34-m
f/3 Schmidt + CCD.
104 San Marcello Pistoiese. Observers P. Bacci, M. Maestripieri. Measurers
P. Bacci, L. Tesi, G. Fagioli. 0.60-m reflector + CCD.
159 Monte Agliale. Observer F. Biagini. Measurers S. Donati, F. Biagini, F.
Ciabattari, E. Mazzoni. 0.50-m f/4.6 reflector + CCD.
246 Klet Observatory-KLENOT. Observers M. Tichy, J. Ticha, M. Honkova, M.
Janda. Measurer M. Tichy. 1.06-m f/2.7 reflector + 2048x2048
CCD.
595 Farra d'Isonzo. Observer E. Pettarin. 0.40-m f/5.15 reflector + CCD.
703 Catalina Sky Survey. Observer R. A. Kowalski. 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. 0.68-m Schmidt + 10K
CCD.
718 Tooele. Observer P. Wiggins. 0.35-m f/5.5 Schmidt-Cassegrain + CCD.
734 Farpoint Observatory, Eskridge. Observers G. Hug, D. Cromer, D. Goodin,
R. Valentine. Measurer G. Hug. 0.7-m reflector + CCD.
858 Tebbutt Observatory, Edgewood. Observer F. B. Zoltowski. 0.51-m Schmidt-
Cassegrain + CCD.
958 Observatoire de Dax. Observers P. Dupouy, J. B. de Vanssay. Measurer P.
Dupouy. 0.43-m f/2.7 reflector + CCD, 0.32-m Schmidt-Cassegrain + CCD.
B91 Bollwiller. Observer C. Demeautis. 0.28-m f/2.2 reflector + CCD.
G02 KYSUCE Observatory, Kysucke Nove Mesto. Observer M. Urbanik. 0.40-m
f/4.5 reflector + CCD.
G15 Magroforte Observatory, Alessandria. Observer A. De Pieri. 0.25-m f/6.7
Schmidt-Cassegrain + 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.
I93 St Pardon de Conques. Observer F. Losse. 0.40-m f/3.7 reflector + CCD.
J69 North Observatory, Clanfield. Observer D. Briggs. 0.41-m f/4.5 Newtonian
reflector + CCD.
J95 Great Shefford. Observer P. Birtwhistle. 0.41-m f/6.3 Schmidt-Cassegrain
+ CCD.
K63 G. Pascoli Observatory, Castelvecchio Pascoli. Observer R. Bacci. 0.41-m
f/3.2 Newtonian reflector + CCD.
K83 Beppe Forti Astronomical Observatory, Montelupo. Observers M. Tombelli,
A. Mazzanti, M. Lombardo, M. Iozzi, P. Fini, F. Bagnoli. Measurers M.
Tombelli, F. Bernardi, G. Interrante. 0.40-m f/8 Ritchey-Chretien + CCD.
L01 Visnjan Observatory, Tican. Observer K. Korlevic. 1.0-m f/2.9 reflector
+ CCD.
L18 QOS Observatory, Zalistci. Observers S. V. Rischenko, T. A. Bezluschenko.
Measurer A. M. Kozhukhov. 0.50-m f/3.8 reflector + CCD.
N88 Xingming Observatory #3, Nanshan. Observer X. Gao. Measurer Q.-Z. Ye.
0.6-m f/8 Ritchey-Chretien + CCD.
Z43 Landehen. Observer C. Ratinaud. 0.25-m f/4.7 reflector + CCD + GPS-
tagged video.
Z80 Northolt Branch Observatory. Observer G. Wells. Measurers G. Wells, D.
Bamberger. 0.25-m f/8.0 Ritchey-Chretien + CCD.
Orbital elements:
2021 RG2 Earth MOID = 0.0203 AU
Epoch 2021 July 5.0 TT = JDT 2459400.5 Veres
M 56.51571 (2000.0) P Q
n 1.18853752 Peri. 30.87880 -0.95316610 +0.29604283
a 0.8826614 Node 165.92910 -0.30223187 -0.94004290
e 0.2138015 Incl. 14.75294 +0.01141413 -0.16934577
P 0.83 H 25.38 G 0.15 U 6
Residuals in seconds of arc
210906 703 0.4+ 1.1+ 210906 595 0.1+ 0.1+ 210906 B91 0.3- 1.0-
210906 703 0.3- 0.0 210906 K63 0.4+ 0.5+ 210906 I93 0.1- 0.2-
210906 703 0.0 0.9+ 210906 K63 0.7+ 0.0 210906 L01 0.2- 0.1-
210906 G96 0.0 0.0 210906 104 0.4- 0.9- 210906 K83 0.6- 0.6-
210906 G96 0.0 0.2- 210906 595 0.3- 0.2+ 210906 I93 0.0 0.2-
210906 703 0.0 0.5+ 210906 595 0.4- 0.1+ 210906 G15 0.2+ 0.9-
210906 703 0.5- 0.5+ 210906 G02 0.2- 1.2- 210906 I93 0.0 0.1-
210906 703 0.2+ 0.2+ 210906 958 0.5- 0.3+ 210906 K83 0.6- 0.3-
210906 703 0.1+ 0.3+ 210906 G02 0.2+ 0.8- 210906 G15 0.1+ 0.6-
210906 G96 0.1+ 0.1+ 210906 Z43 0.0 0.5+ 210906 K83 0.2- 0.6-
210906 N88 0.0 0.1- 210906 Z80 0.9- 0.2+ 210906 J69 0.4+ 0.4+
210906 N88 0.1- 0.7- 210906 J95 0.2+ 0.0 210906 J69 0.4+ 0.3+
210906 N88 0.0 0.1- 210906 958 0.3- 0.2- 210906 J69 0.4+ 0.1+
210906 N88 0.0 0.1- 210906 J95 0.2+ 0.1+ 210906 J69 0.2+ 0.3+
210906 N88 0.1- 0.5- 210906 958 0.8- 0.2+ 210906 J69 0.2+ 0.3+
210906 033 0.0 0.1+ 210906 Z43 0.0 0.5+ 210906 J69 0.7+ 0.3+
210906 033 0.0 0.2- 210906 J95 0.3- 0.5+ 210906 Z80 0.3- 0.3+
210906 033 0.1- 0.3- 210906 958 0.3- 0.2+ 210906 Z80 0.3+ 0.3+
210906 L18 0.3- 0.0 210906 J95 0.2+ 0.1- 210906 Z80 0.2- 0.2+
210906 L18 0.5- 0.7- 210906 Z43 0.5+ 0.2+ 210907 858 0.3+ 0.1+
210906 246 0.9- 0.3- 210906 Z80 0.5+ 0.0 210907 858 0.3+ 0.5+
210906 246 0.2- 0.4- 210906 958 0.2- 0.4+ 210907 858 0.2+ 0.4+
210906 246 0.0 0.5- 210906 G02 0.1+ 0.5- 210907 734 0.3- 0.8-
210906 246 0.5- 0.4- 210906 958 0.1- 0.2+ 210907 734 0.1- 0.4-
210906 L18 0.3- 1.2- 210906 159 0.2+ 0.6- 210907 734 0.2- 0.1-
210906 246 0.2- 0.8- 210906 159 0.3- 0.0 210907 718 0.9- 1.0-
210906 246 0.3- 0.0 210906 159 1.0- 0.6- 210907 718 0.0 0.3-
210906 246 0.4- 0.3- 210906 B91 0.1+ 0.1+ 210907 718 0.9+ 0.8-
210906 246 0.6- 0.5- 210906 L01 0.1+ 0.2- 210907 718 0.7+ 0.3+
210906 595 0.3+ 0.1- 210906 L01 0.0 0.2- 210907 718 0.1+ 0.6-
210906 104 0.0 0.7- 210906 B91 0.8- 0.0 210907 718 0.2- 1.5-
210906 595 0.0 0.0 210906 G15 0.4- 0.4+ 210907 718 0.9- 1.0-
210906 104 0.5- 0.0 210906 L01 0.1- 0.2-
210906 K63 0.9+ 0.1- 210906 L01 0.1- 0.2-
Ephemeris:
2021 RG2 a,e,i = 0.88, 0.21, 15 q = 0.6939
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2021 08 08 09 22 11.8 +73 12 00 0.1457 0.9427 57.0 115.6 25.6
...
2021 08 23 07 28 34.6 +81 21 23 0.07534 0.9904 71.9 104.0 23.6
...
2021 08 31 01 08 11.3 +76 02 20 0.03910 1.0119 92.3 85.5 21.4
...
2021 09 06 23 22 38.0 +27 37 41 0.02159 1.0259 145.3 34.0 18.5
2021 09 07 23 14 52.8 +14 16 22 0.02161 1.0281 159.3 20.3 18.1
2021 09 08 23 08 21.7 +01 36 28 0.02280 1.0302 172.6 7.3 17.8
...
2021 09 14 22 44 44.3 -38 36 39 0.04404 1.0418 143.6 35.0 20.1
...
2021 09 22 22 32 33.0 -51 34 57 0.08242 1.0542 125.9 50.5 21.9
...
2021 10 07 22 30 52.2 -56 23 23 0.1571 1.0683 112.0 60.2 23.7
M. P. C. Staff (C) Copyright 2021 MPC M.P.E.C. 2021-R129
Read MPEC 2021-R128
Read MPEC 2021-R130
Enter an MPEC number in one of the following forms:
- 1997-B01 (the full form)
- J97B01 (the packed version of the full form)
- B01 (the abbreviated form)