MPEC 2023-S76 : 2023 RQ21
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M.P.E.C. 2023-S76 Issued 2023 September 19, 11:32 UT
The Minor Planet Electronic Circulars contain information on unusual
minor planets, routine data on comets and natural satellites,
and occasional editorial announcements. 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
2023 RQ21
Observations:
K23R21Q C2023 08 22.51240801 43 42.127+16 38 08.44 23.01GVES076F52
K23R21Q C2023 08 22.52532701 43 43.597+16 38 14.51 22.89GVES076F52
K23R21Q C2023 08 22.53839001 43 45.099+16 38 20.97 23.15GVES076F52
K23R21Q C2023 09 09.49492502 19 07.652+18 24 16.38 21.62GVES076F51
K23R21Q C2023 09 09.50607502 19 08.946+18 24 19.30 21.98GVES076F51
K23R21Q C2023 09 09.51724302 19 10.219+18 24 21.68 21.78GVES076F51
K23R21Q C2023 09 09.52871302 19 11.522+18 24 24.11 21.43GVES076F51
K23R21Q* C2023 09 15.48058702 31 04.109+18 39 48.22 21.37wXES076F52
K23R21Q C2023 09 15.49209802 31 05.424+18 39 49.56 21.33wXES076F52
K23R21Q C2023 09 15.50378102 31 06.754+18 39 50.74 21.27wXES076F52
K23R21Q C2023 09 15.51562002 31 08.097+18 39 52.10 21.16wXES076F52
K23R21Q C2023 09 15.57236102 31 14.537+18 39 57.33 20.79GVES076F52
K23R21Q C2023 09 15.57299602 31 14.605+18 39 57.39 20.88GVES076F52
K23R21Q 1C2023 09 16.12329 02 32 20.40 +18 40 37.6 21.1 VXES076033
K23R21Q 1C2023 09 16.12514 02 32 20.61 +18 40 37.7 21.2 VXES076033
K23R21Q 1C2023 09 16.12698 02 32 20.83 +18 40 37.7 20.8 VXES076033
K23R21Q !C2023 09 16.14118 02 32 22.84 +18 40 44.6 20.2 GVES076J04
K23R21Q !C2023 09 16.15441 02 32 24.35 +18 40 45.7 19.9 GVES076J04
K23R21Q KC2023 09 16.28122302 32 39.83 +18 40 52.3 21.6 VuES076H21
K23R21Q KC2023 09 16.28681502 32 40.49 +18 40 52.7 21.9 VuES076H21
K23R21Q KC2023 09 16.29240602 32 41.13 +18 40 53.3 21.7 VuES076H21
K23R21Q KC2023 09 16.29809102 32 41.80 +18 40 53.8 21.8 VuES076H21
K23R21Q C2023 09 16.32732002 32 45.544+18 40 56.49 21.7 GVES076654
K23R21Q C2023 09 16.33934802 32 46.944+18 40 57.56 21.7 GVES076654
K23R21Q mC2023 09 16.47921002 33 02.820+18 41 08.50 21.65GVES076I52
K23R21Q mC2023 09 16.48475402 33 03.580+18 41 07.80 VES076I52
K23R21Q mC2023 09 16.49029802 33 04.110+18 41 09.60 21.65GVES076I52
K23R21Q C2023 09 16.49481702 33 04.715+18 41 09.85 21.2 GVES076654
K23R21Q mC2023 09 16.49584202 33 04.800+18 41 10.00 21.57GVES076I52
K23R21Q C2023 09 16.50807202 33 06.238+18 41 10.55 21.2 GVES076654
K23R21Q 1C2023 09 17.96391 02 36 01.06 +18 42 27.3 21.7 VXES076033
K23R21Q 1C2023 09 17.96610 02 36 01.34 +18 42 27.4 21.2 VXES076033
K23R21Q 1C2023 09 17.96830 02 36 01.56 +18 42 27.6 21.5 VXES076033
K23R21Q 1C2023 09 18.96934 02 38 01.12 +18 42 55.7 21.5 VXES076033
K23R21Q 1C2023 09 18.97148 02 38 01.38 +18 42 55.8 21.5 VXES076033
K23R21Q 1C2023 09 18.97362 02 38 01.64 +18 42 55.5 21.5 VXES076033
K23R21Q !C2023 09 19.40784 02 38 53.19 +18 43 05.6 21.3 RVES076673
K23R21Q !C2023 09 19.41856 02 38 54.45 +18 43 05.8 VES076673
Observer details:
033 Karl Schwarzschild Observatory, Tautenburg. Observers S. Melnikov, C.
Hoegner, F. Ludwig, M. Hartmann, B. Stecklum, C. Hogner. Measurer B.
Stecklum. 1.34-m f/3 Schmidt + CCD.
654 Table Mountain Observatory, Wrightwood-PHMC. Observers N. Evans, P. Choi,
N. Saini, C. Zhai, R. Trahan, M. Shao. 1.0-m Reflector + CCD.
673 Table Mountain Observatory, Wrightwood. Observer J. Pittichova. 1.0-m
f/15 reflector + CCD.
F51 Pan-STARRS 1, Haleakala. Observers J. Bulger, K. Chambers, T. Lowe, P.
Minguez, A. Schultz, I. Smith. Measurers S. Chastel, J. Fairlamb, M.
Huber, Y. Ramanjooloo, R. Wainscoat, R. Weryk. 1.8-m Ritchey-Chretien +
CCD.
F52 Pan-STARRS 2, Haleakala. Observers J. Bulger, K. Chambers, T. Dukes, T.
Lowe, P. Minguez, A. Schultz, I. Smith. Measurers S. Chastel, J.
Fairlamb, M. Huber, Y. Ramanjooloo, R. Wainscoat, R. Weryk, K. Chambers,
T. de Boer, J. Bulger, H. Gao, C.-C. Lin, T. Lowe, E. Magnier, P. Minguez,
A. Schultz, I. Smith. 1.8-m Ritchey-Chretien + CCD.
H21 Astronomical Research Observatory, Westfield. Observer R. Holmes.
Measurers T. Linder, R. Holmes, L. Horn. 0.76-m f/3.0 astrograph + CCD.
I52 Steward Observatory, Mt. Lemmon Station. Observer D. C. Fuls. Measurers
E. J. Christensen, D. Fay, J. B. Fazekas, D. C. Fuls, A. R. Gibbs, A. D.
Grauer, H. Groeller, J. K. Hogan, R. A. Kowalski, S. M. Larson, G. J.
Leonard, D. Rankin, R. L. Seaman, A. Serrano, F. C. Shelly, K. W.
Wierzchos. 1.0-m prime focus + CCD.
J04 ESA Optical Ground Station, Tenerife. Observers P. Ruiz, M. Micheli, F.
Ocana, L. Conversi. Measurers R. Kresken, M. Micheli, F. Ocana, A.
Knofel, M. Busch, E. Schwab. 1.0-m f/4.4 reflector + CCD.
Orbital elements:
2023 RQ21 Earth MOID = 0.3032 AU
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5 Veres
M 340.66710 (2000.0) P Q
n 0.27171070 Peri. 217.74911 +0.48355036 -0.87429585
a 2.3608309 Node 203.42358 +0.82675183 +0.47204676
e 0.4562380 Incl. 6.10233 +0.28750731 +0.11304252
P 3.63 H 20.59 G 0.15 U 8
Residuals in seconds of arc
230822 F52 0.4- 0.0 230916 033 0.0 0.1+ 230916 I52 0.2+ 0.2-
230822 F52 0.1- 0.1- 230916 033 0.1- 0.1+ 230916 654 0.1- 0.0
230822 F52 0.5+ 0.1+ 230916 033 0.0 0.1- 230916 I52 1.0+ 0.2-
230909 F51 0.2- 0.2- 230916 J04 0.0 0.1+ 230916 654 0.0 0.1-
230909 F51 0.1+ 0.2+ 230916 J04 0.1+ 0.1+ 230917 033 0.3- 0.2-
230909 F51 0.1+ 0.1+ 230916 H21 0.2- 0.2+ 230917 033 0.1+ 0.2-
230909 F51 0.0 0.0 230916 H21 0.1+ 0.1+ 230917 033 0.4- 0.1-
230915 F52 0.0 0.2- 230916 H21 0.0 0.2+ 230918 033 0.3- 0.2-
230915 F52 0.0 0.0 230916 H21 0.3+ 0.2+ 230918 033 0.2- 0.2-
230915 F52 0.0 0.1- 230916 654 0.2- 0.0 230918 033 0.0 0.5-
230915 F52 0.0 0.1+ 230916 654 0.0 0.0 230919 673 0.5- 0.3-
230915 F52 0.0 0.1- 230916 I52 0.2- 0.6- 230919 673 0.1+ 0.2-
230915 F52 0.0 0.1- 230916 I52 1.6+ 1.7-
Ephemeris:
2023 RQ21 a,e,i = 2.36, 0.46, 6 q = 1.2837
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2023 08 20 01 38 50.5 +16 17 52 0.8409 1.5863 117.5 34.5 22.6
...
2023 09 04 02 08 11.4 +18 00 16 0.6870 1.5098 124.8 33.3 22.1
...
2023 09 12 02 24 07.0 +18 32 14 0.6144 1.4717 128.8 32.2 21.7
...
2023 09 18 02 36 04.8 +18 42 38 0.5645 1.4446 131.9 31.2 21.5
2023 09 19 02 38 04.2 +18 43 06 0.5566 1.4402 132.4 31.0 21.4
2023 09 20 02 40 03.6 +18 43 10 0.5488 1.4359 133.0 30.8 21.4
...
2023 09 26 02 51 56.2 +18 35 08 0.5044 1.4109 136.2 29.5 21.1
...
2023 10 04 03 07 29.9 +17 59 48 0.4518 1.3803 140.7 27.3 20.8
...
2023 10 19 03 34 37.0 +15 28 52 0.3740 1.3327 149.7 22.1 20.1
M. P. C. Staff (C) Copyright 2023 MPC M.P.E.C. 2023-S76
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