MPEC 2023-H170 : 2023 HJ4
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M.P.E.C. 2023-H170 Issued 2023 April 25, 01:03 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 HJ4
Observations:
K23H04J*1C2023 04 24.28354312 49 23.170+14 44 02.00 VEH170703
K23H04J 1C2023 04 24.28890912 49 43.990+14 48 32.40 18.36GVEH170703
K23H04J 1C2023 04 24.29428012 50 05.220+14 53 06.30 18.26GVEH170703
K23H04J 1C2023 04 24.29965012 50 25.800+14 57 31.20 VEH170703
K23H04J mC2023 04 24.34490412 53 18.726+15 34 15.92 18.53GVEH170I52
K23H04J mC2023 04 24.34508012 53 19.388+15 34 24.10 18.87GVEH170I52
K23H04J mC2023 04 24.34525012 53 20.040+15 34 32.27 18.36GVEH170I52
K23H04J mC2023 04 24.34542112 53 20.674+15 34 40.26 18.59GVEH170I52
K23H04J mC2023 04 24.38014812 55 31.462+16 01 51.42 18.66GVEH170I52
K23H04J mC2023 04 24.38031812 55 32.084+16 01 59.59 18.87GVEH170I52
K23H04J mC2023 04 24.38048812 55 32.704+16 02 07.04 18.37GVEH170I52
K23H04J mC2023 04 24.38065812 55 33.348+16 02 14.93 18.76GVEH170I52
K23H04J KC2023 04 24.47774113 02 09.80 +17 28 02.6 19.0 GVEH170474
K23H04J KC2023 04 24.47858913 02 12.72 +17 28 39.3 19.2 GVEH170474
K23H04J KC2023 04 24.47943613 02 15.68 +17 29 15.4 19.3 GVEH170474
K23H04J KC2023 04 24.48028513 02 18.66 +17 29 52.2 18.9 GVEH170474
K23H04J KC2023 04 24.48113313 02 21.65 +17 30 27.3 19.5 GVEH170474
K23H04J KC2023 04 24.86217 13 23 42.24 +21 14 09.5 19.0 RVEH170M50
K23H04J KC2023 04 24.86949 13 24 02.84 +21 18 06.9 VEH170M50
K23H04J KC2023 04 24.88393513 24 43.32 +21 25 35.9 19.3 GVEH170104
K23H04J KC2023 04 24.88717613 24 52.95 +21 27 00.8 19.2 GVEH170204
K23H04J KC2023 04 24.88739013 24 52.90 +21 27 25.4 19.3 GVEH170104
K23H04J KC2023 04 24.89080413 25 02.42 +21 29 13.9 VEH170104
K23H04J KC2023 04 24.89351513 25 10.56 +21 30 22.0 VEH170204
K23H04J KC2023 04 24.89992113 25 28.31 +21 33 44.3 VEH170204
Observer details:
104 San Marcello Pistoiese. Observers P. Bacci, M. Maestripieri. Measurer P.
Bacci. 0.60-m f/4.0 reflector + CCD.
204 Schiaparelli Observatory. Observer L. Buzzi. 0.84-m f/3.5 reflector +
CCD.
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.
703 Catalina Sky Survey. Observer A. Serrano. 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. 0.68-m Schmidt + 10K
CCD.
I52 Steward Observatory, Mt. Lemmon Station. Observer A. Serrano. 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.
M50 Virtual Telescope Project, Manciano. Observer G. Masi. 0.36-m f/8.4
Schmidt-Cassegrain + CCD.
Orbital elements:
2023 HJ4 Earth MOID = 0.0073 AU
Epoch 2023 Feb. 25.0 TT = JDT 2460000.5 Veres
M 351.13086 (2000.0) P Q
n 0.65790593 Peri. 307.85029 -0.92202768 -0.35185979
a 1.3092629 Node 212.47873 +0.37499461 -0.91534561
e 0.2936270 Incl. 17.49498 -0.09614575 -0.19579861
P 1.50 H 26.97 G 0.15 U 7
Residuals in seconds of arc
230424 703 1.6- 2.0- 230424 I52 0.2+ 0.2+ 230424 M50 0.9+ 0.6+
230424 703 1.9- 1.6- 230424 I52 0.0 0.2- 230424 104 0.6+ 0.5+
230424 703 (4.3+ 3.3+) 230424 I52 0.0 0.2- 230424 204 0.1+ 0.3-
230424 703 1.8+ 0.6+ 230424 474 0.3+ 0.4+ 230424 104 0.1+ 0.0
230424 I52 0.3+ 0.5+ 230424 474 0.5- 0.5+ 230424 104 0.6+ 0.1+
230424 I52 0.3+ 0.3+ 230424 474 0.5- 0.1+ 230424 204 0.2- 0.3-
230424 I52 0.4+ 0.3+ 230424 474 0.4- 0.4+ 230424 204 0.2- 0.0
230424 I52 0.2+ 0.2+ 230424 474 0.1- 1.0-
230424 I52 0.4+ 0.1- 230424 M50 1.2+ 0.5+
Ephemeris:
2023 HJ4 a,e,i = 1.31, 0.29, 17 q = 0.9248
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2023 03 26 04 01 37.1 -38 43 51 0.1806 0.9369 65.5 104.4 27.0
...
2023 04 10 04 27 17.4 -40 41 47 0.08564 0.9697 65.9 109.5 25.7
...
2023 04 18 05 21 18.5 -42 18 16 0.03414 0.9943 72.8 105.3 23.5
...
2023 04 24 12 28 21.5 +10 20 48 0.01175 1.0154 147.0 32.7 18.7
2023 04 25 13 30 03.7 +22 27 05 0.01649 1.0191 143.4 36.0 19.6
2023 04 26 14 06 13.1 +28 08 49 0.02221 1.0228 138.6 40.6 20.3
...
2023 05 02 15 14 18.7 +35 43 06 0.06054 1.0461 128.3 49.1 22.8
...
2023 05 10 15 33 01.3 +36 33 39 0.1132 1.0794 125.6 49.5 24.3
...
2023 05 25 15 41 49.1 +34 45 03 0.2133 1.1462 124.2 47.0 25.7
M. P. C. Staff (C) Copyright 2023 MPC M.P.E.C. 2023-H170
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