MPEC 2023-H125 : 2023 HS2
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M.P.E.C. 2023-H125 Issued 2023 April 21, 18:43 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 HS2
Observations:
K23H02S* C2023 04 18.55954316 36 24.292-06 20 24.06 20.57GVEH125F52
K23H02S C2023 04 18.56986116 36 24.995-06 19 30.72 20.68GVEH125F52
K23H02S |C2023 04 19.21605 16 37 21.68 -05 24 01.1 21.0 VuEH125807
K23H02S |C2023 04 19.22255 16 37 22.13 -05 23 28.1 20.7 VuEH125807
K23H02S |C2023 04 19.22906 16 37 22.57 -05 22 56.4 21.1 VuEH125807
K23H02S mC2023 04 19.35785616 37 32.956-05 13 12.86 21.00GVEH125I52
K23H02S mC2023 04 19.35983516 37 32.840-05 12 51.88 21.06GVEH125I52
K23H02S mC2023 04 19.36037616 37 32.819-05 12 49.61 21.06GVEH125I52
K23H02S mC2023 04 19.36271816 37 32.999-05 12 38.09 VEH125I52
K23H02S KC2023 04 20.02864 16 38 24.38 -04 18 39.1 21.1 GVEH125511
K23H02S KC2023 04 20.03347 16 38 24.68 -04 18 13.4 21.1 GVEH125511
K23H02S KC2023 04 20.03776 16 38 24.95 -04 17 56.8 21.4 GVEH125511
K23H02S !C2023 04 20.11773 16 38 30.78 -04 11 23.7 19.9 GVEH125J04
K23H02S |C2023 04 20.20409 16 38 38.00 -04 03 48.6 21.3 VuEH125807
K23H02S |C2023 04 20.21065 16 38 38.39 -04 03 17.7 20.6 VuEH125807
K23H02S |C2023 04 20.21722 16 38 38.77 -04 02 47.0 21.1 VuEH125807
K23H02S C2023 04 21.40840416 39 58.262-02 32 31.91 20.9 GVEH125654
K23H02S C2023 04 21.43122816 39 59.346-02 30 50.73 21.0 GVEH125654
K23H02S C2023 04 21.45791716 40 00.607-02 28 52.53 20.9 GVEH125654
Observer details:
511 Haute Provence. Observers M. Birlan, A. Sonka. 1.20-m f/6 reflector +
CCD.
654 Table Mountain Observatory, Wrightwood-PHMC. Observers N. Evans, P. Choi,
N. Saini, C. Zhai, R. Trahan, M. Shao. 1.0-m Reflector + CCD.
807 Cerro Tololo Observatory, La Serena. Observers T. Linder, R. Holmes, L.
Horn. 0.61-m f/6.5 Dall-Kirkham Astrograph + CCD.
F52 Pan-STARRS 2, Haleakala. Observers J. Bulger, K. Chambers, T. Dukes, T.
Lowe, A. Schultz, I. Smith. Measurers S. Chastel, J. Fairlamb, M. Huber,
Y. Ramanjooloo, R. Wainscoat, R. Weryk. 1.8-m Ritchey-Chretien + CCD.
I52 Steward Observatory, Mt. Lemmon Station. Observer R. A. Kowalski.
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.
J04 ESA Optical Ground Station, Tenerife. Observers P. Ruiz, M. Micheli, F.
Ocana, L. Conversi. Measurers R. Kresken, M. Micheli, F. Ocana, A.
Knofel, M. Busch, E. Schwab. 1.0-m f/4.4 reflector + CCD.
Orbital elements:
2023 HS2 Earth MOID = 0.0990 AU
Epoch 2023 Feb. 25.0 TT = JDT 2460000.5 Veres
M 356.33955 (2000.0) P Q
n 0.16170663 Peri. 335.92239 -0.99238493 +0.00660222
a 3.3367026 Node 205.39836 +0.01118883 -0.98960244
e 0.6781890 Incl. 16.66467 -0.12266608 -0.14367820
P 6.10 H 22.90 G 0.15 U 8
Residuals in seconds of arc
230418 F52 0.0 0.0 230419 I52 0.5- 0.4+ 230420 807 0.1- 0.0
230418 F52 0.2- 0.1- 230419 I52 0.1- 0.3+ 230420 807 0.2- 0.3-
230419 807 0.1+ 0.1- 230420 511 0.5- 0.4- 230421 654 0.1+ 0.0
230419 807 0.2+ 0.5+ 230420 511 (0.5- 2.2+) 230421 654 0.1+ 0.0
230419 807 0.3+ 0.2- 230420 511 (0.4- 1.7-) 230421 654 0.1+ 0.0
230419 I52 (4.0+ 10.4-) 230420 J04 0.0 0.3+
230419 I52 0.3+ 0.8+ 230420 807 0.1- 0.1+
Ephemeris:
2023 HS2 a,e,i = 3.34, 0.68, 17 q = 1.0738
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2023 03 22 13 22 26.7 -61 16 48 0.1522 1.0743 117.2 55.6 21.0
...
2023 04 06 15 59 10.9 -30 37 34 0.1432 1.0996 130.9 43.4 20.6
...
2023 04 14 16 27 46.1 -13 43 10 0.1667 1.1277 135.5 38.6 20.8
...
2023 04 20 16 38 21.3 -04 20 26 0.1936 1.1547 137.6 35.9 21.1
2023 04 21 16 39 31.5 -03 02 42 0.1986 1.1597 137.9 35.5 21.2
2023 04 22 16 40 33.4 -01 49 08 0.2038 1.1648 138.1 35.2 21.2
...
2023 04 28 16 44 22.4 +04 13 38 0.2376 1.1976 139.7 32.9 21.6
...
2023 05 06 16 45 01.0 +09 30 46 0.2882 1.2472 141.5 30.2 22.0
...
2023 05 21 16 39 38.7 +13 54 12 0.3980 1.3538 143.8 26.2 22.7
M. P. C. Staff (C) Copyright 2023 MPC M.P.E.C. 2023-H125
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