MPEC 2023-H161 : 2023 HB4
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M.P.E.C. 2023-H161 Issued 2023 April 24, 10:51 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 HB4
Observations:
K23H04B* C2023 04 23.35885 14 32 06.96 -00 17 16.0 17.51gUEH161I41
K23H04B C2023 04 23.35920 14 32 04.62 -00 16 45.0 17.51gUEH161I41
K23H04B C2023 04 23.39005 14 28 36.42 +00 29 11.0 16.92RUEH161I41
K23H04B C2023 04 23.39040 14 28 34.05 +00 29 42.5 16.92RUEH161I41
K23H04B KC2023 04 23.46799714 19 28.772+02 29 51.00 16.47GVEH161I52
K23H04B KC2023 04 23.46826514 19 26.922+02 30 16.09 16.77GVEH161I52
K23H04B KC2023 04 23.46853214 19 25.021+02 30 41.80 16.67GVEH161I52
K23H04B KC2023 04 23.46879814 19 23.128+02 31 07.64 16.69GVEH161I52
K23H04B C2023 04 23.48033214 18 10.286+02 48 11.26 16.7 GVEH161U74
K23H04B C2023 04 23.48053014 18 08.973+02 48 32.11 16.7 GVEH161U74
K23H04B C2023 04 23.48215314 17 57.365+02 51 07.04 17.1 GVEH161U74
K23H04B C2023 04 23.48235214 17 55.950+02 51 26.16 17.1 GVEH161U74
K23H04B KC2023 04 23.79275713 39 59.10 +11 50 17.0 17.0 RoEH161K88
K23H04B KC2023 04 23.79343513 39 53.17 +11 51 32.9 17.0 RoEH161K88
K23H04B KC2023 04 23.79411313 39 47.31 +11 52 49.4 17.1 RoEH161K88
K23H04B KC2023 04 23.79928713 39 02.00 +12 02 31.6 17.0 RoEH161K88
K23H04B KC2023 04 23.80063613 38 50.15 +12 05 03.3 16.8 RoEH161K88
K23H04B KC2023 04 23.84121713 33 08.75 +13 22 01.3 17.0 GXEH161958
K23H04B KC2023 04 23.84278713 32 54.54 +13 25 00.8 17.2 GXEH161958
K23H04B KC2023 04 23.84410113 32 42.78 +13 27 30.7 17.7 GXEH161958
K23H04B KC2023 04 23.84550 13 32 16.58 +13 32 22.1 17.0 GXEH161K96
K23H04B KC2023 04 23.84773 13 31 56.16 +13 36 35.2 17.0 GXEH161K96
K23H04B KC2023 04 23.84993 13 31 35.98 +13 40 45.5 16.8 GXEH161K96
K23H04B KC2023 04 23.85533813 30 31.74 +13 48 05.9 16.5 GXEH161L18
K23H04B KC2023 04 23.85752513 30 11.64 +13 52 14.4 16.7 GXEH161L18
K23H04B KC2023 04 23.85970013 29 51.60 +13 56 20.5 17.4 GXEH161L18
K23H04B KC2023 04 23.86186513 29 31.66 +14 00 26.4 17.4 GXEH161L18
K23H04B KC2023 04 23.86589113 29 24.47 +14 08 54.2 17.1 GXEH161958
K23H04B KC2023 04 23.86830813 29 02.29 +14 13 30.6 16.5 GXEH161958
K23H04B KC2023 04 23.87070713 28 40.21 +14 18 04.4 16.7 GXEH161958
K23H04B 1C2023 04 23.89685 13 23 51.48 +15 07 49.4 17.1 GVEH161C40
K23H04B 1C2023 04 23.89846 13 23 36.21 +15 10 52.0 17.1 GVEH161C40
K23H04B 1C2023 04 23.90003 13 23 21.35 +15 13 50.4 17.5 GVEH161C40
K23H04B 1C2023 04 23.90822 13 22 03.76 +15 29 16.4 17.0 GVEH161C40
K23H04B 1C2023 04 23.90968 13 21 49.92 +15 32 01.2 17.0 GVEH161C40
K23H04B 1C2023 04 23.91112 13 21 36.28 +15 34 43.6 17.0 GVEH161C40
K23H04B 1C2023 04 23.92271 13 19 45.79 +15 56 33.7 17.1 GVEH161C40
K23H04B KC2023 04 23.92303013 20 25.142+15 55 09.34 17.2 GVEH161Z80
K23H04B 1C2023 04 23.92472 13 19 26.59 +16 00 20.0 17.5 GVEH161C40
K23H04B 1C2023 04 23.92657 13 19 08.89 +16 03 49.3 17.5 GVEH161C40
K23H04B KC2023 04 23.93048613 19 14.107+16 09 20.09 16.9 GVEH161Z80
K23H04B 1C2023 04 23.93846 13 17 14.89 +16 26 09.7 17.2 GVEH161C40
K23H04B 1C2023 04 23.93992 13 17 00.90 +16 28 53.8 17.1 GVEH161C40
K23H04B 1C2023 04 23.94139 13 16 46.70 +16 31 40.1 17.3 GVEH161C40
K23H04B KB2023 04 24.01789213 05 56.507+19 20 16.12 17.2 GXEH161Y01
K23H04B KB2023 04 24.02390313 04 55.439+19 31 38.94 17.5 GXEH161Y01
K23H04B KC2023 04 24.08567212 55 11.80 +21 03 36.4 17.2 VuEH161H21
K23H04B KC2023 04 24.08651912 55 03.12 +21 05 11.6 17.0 VuEH161H21
K23H04B KC2023 04 24.08750412 54 53.04 +21 07 01.9 17.0 VuEH161H21
K23H04B KC2023 04 24.08844412 54 43.38 +21 08 47.3 16.9 VuEH161H21
K23H04B KC2023 04 24.08942912 54 33.26 +21 10 37.8 17.0 VuEH161H21
K23H04B C2023 04 24.23761 12 28 51.81 +25 35 36.5 17.4 rEH161718
K23H04B C2023 04 24.23789 12 28 48.78 +25 36 05.9 16.7 rEH161718
K23H04B C2023 04 24.23816 12 28 45.71 +25 36 35.9 17.1 rEH161718
K23H04B C2023 04 24.23898 12 28 36.91 +25 37 59.0 16.8 rEH161718
K23H04B C2023 04 24.23925 12 28 33.94 +25 38 25.9 16.7 rEH161718
K23H04B C2023 04 24.23952 12 28 30.94 +25 38 55.0 16.9 rEH161718
K23H04B C2023 04 24.24225 12 28 01.36 +25 43 33.7 17.0 rEH161718
K23H04B C2023 04 24.24252 12 27 58.40 +25 44 01.4 17.5 rEH161718
K23H04B C2023 04 24.24279 12 27 55.37 +25 44 29.3 16.9 rEH161718
K23H04B KC2023 04 24.32273 12 13 02.43 +27 54 32.0 17.7 VqEH161734
K23H04B KC2023 04 24.32415 12 12 46.87 +27 56 45.0 17.8 VqEH161734
K23H04B KC2023 04 24.32558 12 12 31.39 +27 58 57.6 17.9 VqEH161734
Observer details:
718 Tooele. Observer P. Wiggins. 0.35-m f/5.5 Schmidt-Cassegrain + CCD.
734 Farpoint Observatory, Eskridge. Observers D. Cromer, G. Hug, D. Goodin,
R. Valentine. Measurer D. Cromer. 0.70-m f/3.0 reflector + CCD.
958 Observatoire de Dax. Observers P. Dupouy, J. B. de Vanssay. Measurer P.
Dupouy. 0.43-m f/2.7 Reflector + CCD.
C40 Kuban State University Astrophysical Observatory. Observers A. Ivanov, A.
Barcov, V. Ivanov, V. Lysenko, N. Yakovenko, N. Ivanova, N. Gorbunov, G.
Kurbatov, P. Shchukin, V. Roshchupko. Measurer A. Ivanov. 0.51-m f/8
reflector + CCD.
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.
K88 GINOP-KHK, Piszkesteto. Observer K. Sarneczky. 0.60-m Schmidt + CCD.
K96 Savelli Observatory. Observers A. Brosio, A. De Pieri. Measurer A. De
Pieri. 0.50-m f/8 RC + CCD.
L18 QOS Observatory, Zalistci. Observer T. A. Bezluschenko. Measurer A. M.
Kozhukhov. 0.50-m f/3.8 reflector + CCD.
U74 JPL SynTrack Robotic Telescope 2, Auberry. Observers N. Saini, C. Zhai,
R. Trahan, M. Zhan, M. Shao. 0.36-m Reflector + CCD.
Y01 SONEAR 2 Observatory, Belo Horizonte. Observers C. Jacques, A. Caetano,
E. Pimentel. Measurer C. Jacques. 0.28-m f/2.2 astrograph + CMO.
Z80 Northolt Branch Observatory. Observer G. Wells. Measurers G. Wells, D.
Bamberger. 0.25-m f/8.0 Ritchey-Chretien + CCD.
Orbital elements:
2023 HB4 Earth MOID = 0.0045 AU
Epoch 2023 Feb. 25.0 TT = JDT 2460000.5 Veres
M 121.29518 (2000.0) P Q
n 1.63870693 Peri. 166.20784 +0.95184246 -0.30257807
a 0.7125279 Node 211.54132 +0.27156945 +0.90691000
e 0.4625199 Incl. 5.42110 +0.14228833 +0.29319066
P 0.60 H 26.89 G 0.15 U 6
Residuals in seconds of arc
230423 I41 0.3+ 0.0 230423 K96 0.4- 0.2- 230423 C40 0.8+ 0.4-
230423 I41 0.2+ 0.1+ 230423 K96 0.5- 0.2- 230423 C40 0.1- 0.3+
230423 I41 (1.4- 2.0+) 230423 L18 0.7+ 0.9- 230424 Y01 0.5- 0.3+
230423 I41 (1.2- 1.9+) 230423 L18 0.6+ 0.4- 230424 Y01 0.8- 0.2+
230423 I52 0.4- 0.1- 230423 L18 0.2+ 1.1- 230424 H21 1.0- 0.0
230423 I52 0.2+ 0.4- 230423 L18 0.4+ 0.9- 230424 H21 1.0- 0.2+
230423 I52 0.0 0.1- 230423 958 0.4- 1.0- 230424 H21 0.8- 0.1-
230423 I52 0.3- 0.5+ 230423 958 0.1- 0.5- 230424 H21 1.1- 0.2-
230423 U74 1.8- 0.7- 230423 958 0.1- 0.7- 230424 H21 1.3- 0.1-
230423 U74 0.2- 1.1+ 230423 C40 0.6+ 0.5- 230424 718 0.9+ 2.2-
230423 U74 0.7- 0.4+ 230423 C40 0.3- 0.1- 230424 718 1.1+ 1.6-
230423 U74 0.7- 0.5+ 230423 C40 0.5- 0.7+ 230424 718 0.7- 0.7+
230423 K88 0.1- 0.5- 230423 C40 0.2- 0.3+ 230424 718 0.8+ 0.3-
230423 K88 0.3- 0.8- 230423 C40 0.1+ 0.0 230424 718 0.4+ 1.0-
230423 K88 0.6+ 0.5- 230423 C40 0.8+ 0.4- 230424 718 0.5- 0.4+
230423 K88 0.2+ 0.6- 230423 C40 0.1+ 0.3+ 230424 718 1.2+ 0.3-
230423 K88 0.1+ 0.8- 230423 Z80 0.4- 0.2- 230424 718 0.9+ 0.2-
230423 958 1.6+ 0.7- 230423 C40 0.2+ 0.3- 230424 718 0.4- 0.1+
230423 958 0.3+ 0.1+ 230423 C40 0.1+ 0.2+ 230424 734 0.9+ 0.0
230423 958 1.4+ 0.4+ 230423 Z80 0.4- 0.5+ 230424 734 0.6- 0.6+
230423 K96 0.3- 0.3+ 230423 C40 0.2+ 0.1- 230424 734 0.3+ 0.1+
Ephemeris:
2023 HB4 a,e,i = 0.71, 0.46, 5 q = 0.3830
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2023 03 25 17 28 48.2 -34 36 12 0.1634 1.0382 100.1 71.0 25.5
...
2023 04 09 17 29 09.7 -33 46 04 0.08348 1.0388 114.6 61.2 23.8
...
2023 04 17 17 12 14.8 -31 21 43 0.03966 1.0275 126.2 52.0 21.9
...
2023 04 23 15 04 52.6 -07 43 33 0.0087901.0137 163.5 16.4 17.5
2023 04 24 13 08 20.0 +18 31 37 0.0064911.0109 146.0 33.8 17.4
2023 04 25 10 19 49.7 +39 58 42 0.0082461.0080 105.2 74.3 19.1
...
2023 05 01 06 35 30.2 +39 28 24 0.03864 0.9877 58.5 119.6 24.6
...
2023 05 09 06 07 17.0 +37 27 18 0.08232 0.9533 45.4 131.0 27.2
...
2023 05 24 05 43 04.6 +35 36 32 0.1685 0.8657 26.9 148.0 30.8
M. P. C. Staff (C) Copyright 2023 MPC M.P.E.C. 2023-H161
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