MPEC 2023-H172 : 2023 HN4
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M.P.E.C. 2023-H172 Issued 2023 April 25, 11:45 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 HN4
Observations:
K23H04N 1C2023 04 15.42950 16 01 29.44 +16 54 19.7 21.6 GVEH172G96
K23H04N 1C2023 04 15.43981 16 01 32.19 +16 54 54.4 22.1 GVEH172G96
K23H04N 1C2023 04 15.44498 16 01 33.56 +16 55 11.5 21.5 GVEH172G96
K23H04N*1C2023 04 23.42672917 00 34.996+27 27 16.99 21.30GVEH172G96
K23H04N 1C2023 04 23.43198917 00 38.556+27 27 51.01 21.03GVEH172G96
K23H04N 1C2023 04 23.44020817 00 44.143+27 28 44.80 20.96GVEH172G96
K23H04N 1C2023 04 23.44546617 00 47.768+27 29 18.71 21.28GVEH172G96
K23H04N 1C2023 04 23.47021017 01 04.620+27 31 59.50 20.34GVEH172G96
K23H04N 1C2023 04 23.47172617 01 05.720+27 32 09.30 21.20GVEH172G96
K23H04N KC2023 04 24.31686517 11 46.66 +29 06 41.1 20.9 VuEH172H21
K23H04N KC2023 04 24.32245917 11 51.05 +29 07 19.9 20.8 VuEH172H21
K23H04N KC2023 04 24.32528517 11 53.24 +29 07 39.4 21.4 VuEH172H21
K23H04N 1C2023 04 25.42422417 27 55.066+31 19 12.36 21.35GVEH172G96
K23H04N 1C2023 04 25.42952317 27 59.872+31 19 51.42 20.86GVEH172G96
K23H04N 1C2023 04 25.43470917 28 04.710+31 20 30.55 20.81GVEH172G96
K23H04N 1C2023 04 25.43988717 28 09.570+31 21 09.25 20.85GVEH172G96
Observer details:
G96 Mt. Lemmon Survey. Observers J. K. Hogan, D. Rankin, J. B. Fazekas.
Measurers B. Gray, D. Rankin, F. C. Shelly, 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, R. L. Seaman, A.
Serrano, K. W. Wierzchos. 1.5-m reflector + 10K CCD.
H21 Astronomical Research Observatory, Westfield. Observer R. Holmes.
Measurers T. Linder, R. Holmes, L. Horn. 0.76-m f/3.0 astrograph + CCD.
Orbital elements:
2023 HN4 Earth MOID = 0.0807 AU
Epoch 2023 Feb. 25.0 TT = JDT 2460000.5 Veres
M 309.50690 (2000.0) P Q
n 0.44119121 Peri. 227.85915 +0.55669960 +0.81825130
a 1.7089059 Node 76.51383 -0.71205652 +0.55890318
e 0.6005415 Incl. 8.47738 -0.42785637 +0.13450663
P 2.23 H 23.48 G 0.15 U 9
Residuals in seconds of arc
230415 G96 0.3- 0.0 230423 G96 0.4- 0.6- 230425 G96 0.1- 0.4-
230415 G96 0.1+ 0.1+ 230423 G96 1.1- 0.2- 230425 G96 1.2- 0.7-
230415 G96 0.2+ 0.1- 230423 G96 0.3- 0.2- 230425 G96 0.5- 0.1-
230423 G96 0.6- 0.7- 230424 H21 0.7+ 0.8+ 230425 G96 0.4+ 0.2+
230423 G96 0.8- 0.8- 230424 H21 1.0+ 0.5+
230423 G96 0.9- 0.4- 230424 H21 0.7+ 0.3+
Ephemeris:
2023 HN4 a,e,i = 1.71, 0.60, 8 q = 0.6826
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2023 03 26 15 08 20.3 +06 21 03 0.4487 1.3586 136.6 30.3 23.7
...
2023 04 10 15 41 06.5 +12 43 54 0.2702 1.2152 137.8 33.6 22.5
...
2023 04 18 16 15 01.4 +19 34 04 0.1868 1.1368 131.7 41.2 21.7
...
2023 04 24 17 07 35.9 +28 30 39 0.1333 1.0775 119.5 54.3 21.2
2023 04 25 17 21 22.9 +30 27 24 0.1257 1.0676 116.4 57.5 21.2
2023 04 26 17 37 27.1 +32 31 09 0.1186 1.0577 112.8 61.2 21.2
...
2023 05 02 20 22 09.4 +42 53 24 0.09338 0.9988 82.0 92.7 21.6
...
2023 05 10 00 09 06.5 +30 32 55 0.1229 0.9219 42.0 132.8 24.8
...
2023 05 25 01 56 56.1 +13 15 36 0.2741 0.7919 31.4 138.2 26.8
M. P. C. Staff (C) Copyright 2023 MPC M.P.E.C. 2023-H172
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