MPEC 2023-H164 : 2023 HE4
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M.P.E.C. 2023-H164 Issued 2023 April 24, 10:54 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 HE4
Observations:
K23H04E* C2023 04 23.33969 16 02 33.63 +19 58 12.8 18.14gUEH164I41
K23H04E C2023 04 23.34004 16 02 36.16 +19 58 44.9 18.14gUEH164I41
K23H04E C2023 04 23.35394 16 04 19.57 +20 20 22.6 17.60RUEH164I41
K23H04E C2023 04 23.35429 16 04 22.13 +20 20 54.8 17.60RUEH164I41
K23H04E C2023 04 23.35442 16 04 23.13 +20 21 06.4 17.71RUEH164I41
K23H04E C2023 04 23.35476 16 04 25.60 +20 21 37.5 17.71RUEH164I41
K23H04E mC2023 04 23.38449416 07 56.716+21 06 56.20 18.01GVEH164I52
K23H04E mC2023 04 23.38460116 07 57.472+21 07 05.45 17.77GVEH164I52
K23H04E mC2023 04 23.38469016 07 58.148+21 07 13.48 18.42GVEH164I52
K23H04E mC2023 04 23.38477916 07 58.793+21 07 21.29 18.21GVEH164I52
K23H04E C2023 04 23.41674316 11 57.570+21 52 26.81 18.1 GVEH164U74
K23H04E C2023 04 23.41700816 11 59.467+21 52 49.45 18.1 GVEH164U74
K23H04E C2023 04 23.42386916 12 48.251+22 02 34.07 18.2 GVEH164U74
K23H04E C2023 04 23.42413416 12 50.132+22 02 56.70 18.2 GVEH164U74
K23H04E C2023 04 23.46572316 17 41.768+23 00 08.49 18.1 GVEH164U74
K23H04E C2023 04 23.46598816 17 43.612+23 00 29.94 18.1 GVEH164U74
K23H04E KC2023 04 24.36829617 39 56.61 +35 07 19.4 19.3 VuEH164H21
K23H04E KC2023 04 24.36971017 40 01.81 +35 07 56.8 19.6 VuEH164H21
K23H04E KC2023 04 24.37408317 40 17.80 +35 09 52.3 19.7 VuEH164H21
K23H04E KC2023 04 24.37793917 40 31.86 +35 11 33.7 19.4 VuEH164H21
K23H04E KC2023 04 24.37903317 40 35.83 +35 12 01.9 19.6 VuEH164H21
K23H04E mC2023 04 24.38511317 41 15.407+35 15 28.22 19.87GVEH164I52
K23H04E mC2023 04 24.38530617 41 16.105+35 15 33.77 19.86GVEH164I52
K23H04E mC2023 04 24.38550017 41 16.746+35 15 38.48 19.31GVEH164I52
K23H04E mC2023 04 24.38570517 41 17.502+35 15 43.52 20.35GVEH164I52
Observer details:
H21 Astronomical Research Observatory, Westfield. Observer R. Holmes.
Measurers T. Linder, R. Holmes, L. Horn. 0.76-m f/3.0 astrograph + CCD.
I41 Palomar Mountain--ZTF. Observers K. Venkataramani, T. Prince, G. Helou,
Q.-Z. Ye, D. Kulkarni, V. Swain, C. Y. Hsu, Y. Cheng. Measurers F. Masci,
D. Shupe, K. Venkataramani, Q.-Z. Ye. 1.2-m f/2.44 Oschin-Schmidt + 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.
U74 JPL SynTrack Robotic Telescope 2, Auberry. Observers N. Saini, C. Zhai,
R. Trahan, M. Zhan, M. Shao. 0.36-m Reflector + CCD.
Orbital elements:
2023 HE4 Earth MOID = 0.0071 AU
Epoch 2023 Feb. 25.0 TT = JDT 2460000.5 Veres
M 338.97157 (2000.0) P Q
n 0.32861761 Peri. 9.00476 -0.76118738 +0.63103821
a 2.0797390 Node 211.72586 -0.61132575 -0.77517927
e 0.5152957 Incl. 16.52996 -0.21650544 -0.02979728
P 3.00 H 26.81 G 0.15 U 7
Residuals in seconds of arc
230423 I41 0.0 0.3+ 230423 I52 0.0 0.2- 230424 H21 0.1+ 0.4+
230423 I41 1.2- 0.5- 230423 U74 1.3+ 1.0+ 230424 H21 0.0 0.5+
230423 I41 0.8+ 0.6+ 230423 U74 1.4+ 1.0+ 230424 H21 0.2- 0.2+
230423 I41 0.4+ 0.4+ 230423 U74 1.5+ 1.3+ 230424 I52 0.3+ 0.0
230423 I41 0.9+ 0.0 230423 U74 1.5+ 1.4+ 230424 I52 0.3+ 0.4+
230423 I41 0.3+ 0.3- 230423 U74 2.2+ 2.2+ 230424 I52 0.4- 0.0
230423 I52 0.1- 0.1+ 230423 U74 2.3+ 2.4+ 230424 I52 0.3- 0.5-
230423 I52 0.4- 0.3- 230424 H21 0.1+ 0.6+
230423 I52 0.0 0.1- 230424 H21 0.2+ 0.4+
Ephemeris:
2023 HE4 a,e,i = 2.08, 0.52, 17 q = 1.0081
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2023 03 25 08 42 28.7 -43 34 54 0.1929 1.0984 117.1 53.9 25.4
...
2023 04 09 08 44 37.1 -44 01 40 0.09351 1.0403 112.2 63.0 24.0
...
2023 04 17 09 14 44.4 -43 40 14 0.03956 1.0206 114.4 63.5 22.1
...
2023 04 23 15 13 57.2 +09 36 37 0.0073211.0117 151.5 28.3 17.4
2023 04 24 17 12 21.7 +31 45 15 0.01137 1.0107 116.8 62.6 19.3
2023 04 25 18 13 25.6 +38 26 00 0.01727 1.0098 103.1 75.9 20.7
...
2023 05 01 19 39 21.2 +43 15 58 0.05705 1.0078 88.9 87.9 23.7
...
2023 05 09 19 58 22.7 +43 42 20 0.1103 1.0135 89.1 84.7 25.0
...
2023 05 24 20 06 36.5 +43 44 06 0.2043 1.0488 94.6 74.2 26.1
M. P. C. Staff (C) Copyright 2023 MPC M.P.E.C. 2023-H164
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