MPEC 2023-H162 : 2023 HC4
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M.P.E.C. 2023-H162 Issued 2023 April 24, 10:52 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 HC4
Observations:
K23H04C*1C2023 04 22.28016713 00 26.197+44 17 25.69 20.56GVEH162G96
K23H04C 1C2023 04 22.28534113 00 32.198+44 17 43.87 21.45GVEH162G96
K23H04C 1C2023 04 22.29047913 00 38.149+44 18 01.62 20.66GVEH162G96
K23H04C C2023 04 22.34856413 01 45.693+44 21 02.36 21.5 GVEH162H01
K23H04C C2023 04 22.35160913 01 49.330+44 21 11.76 20.7 GVEH162H01
K23H04C C2023 04 22.36189413 02 01.656+44 21 42.98 20.3 GVEH162H01
K23H04C C2023 04 22.36994713 02 11.382+44 22 07.21 20.6 GVEH162H01
K23H04C KC2023 04 22.40724813 02 57.361+44 24 07.49 20.31GVEH162I52
K23H04C KC2023 04 22.41031013 03 01.156+44 24 15.88 21.85GVEH162I52
K23H04C KC2023 04 22.41184713 03 03.035+44 24 20.59 21.02GVEH162I52
K23H04C KC2023 04 23.14848413 20 29.893+45 04 26.76 19.44GVEH162I52
K23H04C KC2023 04 23.15235013 20 35.308+45 04 40.69 20.78GVEH162I52
K23H04C KC2023 04 23.15621713 20 40.628+45 04 54.44 20.54GVEH162I52
K23H04C KC2023 04 23.16009213 20 45.895+45 05 08.05 20.69GVEH162I52
K23H04C C2023 04 23.29883213 23 57.562+45 12 20.41 21.0 GVEH162654
K23H04C C2023 04 23.31921213 24 25.559+45 13 16.73 21.3 GVEH162654
K23H04C C2023 04 23.34045213 24 54.852+45 14 12.68 21.3 GVEH162654
K23H04C KC2023 04 24.16088113 46 54.38 +45 45 24.4 20.6 VuEH162H21
K23H04C KC2023 04 24.16648013 47 03.23 +45 45 36.2 20.6 VuEH162H21
K23H04C KC2023 04 24.17197913 47 11.85 +45 45 48.3 21.0 VuEH162H21
Observer details:
654 Table Mountain Observatory, Wrightwood-PHMC. Observers N. Evans, P. Choi,
N. Saini, C. Zhai, R. Trahan, M. Shao. 1.0-m Reflector + CCD.
G96 Mt. Lemmon Survey. Observer D. Rankin. 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. 1.5-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.
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. Observers R. A. Kowalski, 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.
Orbital elements:
2023 HC4 Earth MOID = 0.0246 AU
Epoch 2023 Feb. 25.0 TT = JDT 2460000.5 Veres
M 333.36320 (2000.0) P Q
n 0.40370282 Peri. 126.22285 -0.74616699 +0.66514353
a 1.8131269 Node 95.48915 -0.61967632 -0.67816326
e 0.4376540 Incl. 1.64739 -0.24338464 -0.31253589
P 2.44 H 26.18 G 0.15 U 7
Residuals in seconds of arc
230422 G96 0.4+ 0.2- 230422 I52 0.3- 0.1+ 230423 654 0.0 0.1-
230422 G96 0.2+ 0.2- 230422 I52 0.0 0.2- 230423 654 0.1+ 0.1-
230422 G96 0.2- 0.2- 230422 I52 0.1- 0.2+ 230423 654 0.1- 0.1+
230422 H01 0.1+ 0.0 230423 I52 0.7- 0.6+ 230424 H21 0.1- 0.3-
230422 H01 0.1+ 0.1+ 230423 I52 0.3+ 0.5+ 230424 H21 0.3+ 0.5-
230422 H01 0.1- 0.0 230423 I52 0.4+ 0.3+ 230424 H21 0.1- 0.1-
230422 H01 0.1+ 0.1+ 230423 I52 0.2- 0.0
Ephemeris:
2023 HC4 a,e,i = 1.81, 0.44, 2 q = 1.0196
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2023 03 25 10 37 39.8 +24 17 11 0.1264 1.1032 145.2 31.0 23.2
...
2023 04 09 10 59 15.0 +31 44 02 0.07541 1.0516 130.3 46.6 22.4
...
2023 04 17 11 44 22.3 +38 27 36 0.05099 1.0334 124.6 53.1 21.7
...
2023 04 23 13 16 40.0 +44 56 47 0.03568 1.0246 121.9 56.4 21.0
2023 04 24 13 42 16.9 +45 40 01 0.03367 1.0235 121.5 56.9 20.9
2023 04 25 14 11 32.3 +46 00 51 0.03189 1.0226 121.1 57.4 20.8
...
2023 05 01 17 31 02.2 +34 05 54 0.02838 1.0196 114.9 63.6 20.7
...
2023 05 09 19 38 23.5 +08 14 35 0.04255 1.0225 107.0 70.7 21.9
...
2023 05 24 20 35 53.6 -08 48 08 0.08574 1.0488 112.9 62.8 23.2
M. P. C. Staff (C) Copyright 2023 MPC M.P.E.C. 2023-H162
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