[Iaude] MPEC M14: 2021 KH3 [a=2.09,e=0.48,i=6.5,H=21.35]
mpec at cfa.harvard.edu
mpec at cfa.harvard.edu
Mon Jun 17 10:13:53 EDT 2024
M.P.E.C. 2024-M14 Issued 2024 June 17, 14:12 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 at CFA.HARVARD.EDU
URL https://www.minorplanetcenter.net/ ISSN 1523-6714
2021 KH3
Revision to MPEC 2021-L27
Additional Observations:
K21K03H mC2024 06 15.36447619 14 32.046-36 31 25.00 VEM014I52
K21K03H mC2024 06 15.36693119 14 32.816-36 31 31.55 VEM014I52
K21K03H mC2024 06 15.36939619 14 33.641-36 31 39.25 18.84GVEM014I52
K21K03H mC2024 06 15.37185019 14 34.357-36 31 46.74 18.29GVEM014I52
K21K03H KC2024 06 15.95272 19 17 55.12 -36 59 17.1 VEM014M21
K21K03H KC2024 06 15.96711 19 17 59.80 -37 00 00.1 VEM014M21
K21K03H KC2024 06 15.98151 19 18 04.48 -37 00 42.9 18.4 GVEM014M21
K21K03H C2024 06 16.48664819 21 02.528-37 25 55.72 19.02wXEM014F51
K21K03H C2024 06 16.50098719 21 07.298-37 26 38.04 19.04wXEM014F51
K21K03H C2024 06 16.50836619 21 09.764-37 26 59.78 19.07wXEM014F51
Observer details:
F51 Pan-STARRS 1, Haleakala. Observers J. Herman, T. Lowe, P. Minguez, A.
Schultz, I. Smith. Measurers K. Chambers, T. de Boer, J. Fairlamb, H.
Gao, M. Huber, C.-C. Lin, E. Magnier, Y. Ramanjooloo, R. Wainscoat, R.
Weryk. 1.8-m Ritchey-Chretien + CCD.
I52 Steward Observatory, Mt. Lemmon Station. Observer J. K. Hogan. Measurers
T. Beuden, V. F. Carvajal, 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, F. C. Shelly, K. W. Wierzchos. 1.0-m
prime focus + CCD.
M21 Schiaparelli Southern Observatory, Hakos. Observers A. Aletti, F.
Bellini, L. Buzzi, G. Galli. Measurer L. Buzzi. 0.36-m f/8.4 reflector +
CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
240615 I52 0.24+ 0.01+ 240616 F51 0.24+ 0.02+ E2024-D99 -0.00 days
Orbital elements:
2021 KH3 Earth MOID = 0.1169 AU
Epoch 2024 Mar. 31.0 TT = JDT 2460400.5 Veres
M 322.28198 (2000.0) P Q
n 0.32508335 Peri. 238.28923 +0.60005667 +0.79296120
a 2.0947855 Node 68.95058 -0.69033942 +0.57997886
e 0.4808598 Incl. 6.49495 -0.40418247 +0.18664687
P 3.03 H 21.35 G 0.15 U 0
Residuals in seconds of arc
210523 F51 0.0 0.0 210608 I52 0.0 0.5- 211003 F51 0.1+ 0.0
210523 F51 0.0 0.0 210612 807 0.2- 0.5+ 211003 F51 0.0 0.0
210523 F51 0.0 0.0 210612 807 0.4- 0.0 211003 F51 0.0 0.0
210525 807 0.1+ 0.2+ 210612 807 0.6- 0.1- 240615 I52 0.3- 0.0
210525 807 0.2+ 0.2+ 210910 691 0.1- 0.2+ 240615 I52 0.3- 0.5+
210525 807 0.2+ 0.1- 210910 691 0.0 0.2+ 240615 I52 0.3+ 0.0
210602 807 0.1+ 0.1- 210910 691 0.1- 0.4+ 240615 I52 0.4- 0.4-
210602 807 0.0 0.0 210911 G96 0.1+ 0.1- 240615 M21 0.1+ 0.1-
210602 807 0.0 0.0 210911 G96 0.3+ 0.3+ 240615 M21 0.0 0.1-
210602 T12 0.0 0.0 210911 G96 0.2- 0.2- 240615 M21 0.0 0.0
210602 T12 0.0 0.0 210911 G96 0.0 0.5+ 240616 F51 0.0 0.0
210602 T12 0.0 0.0 210930 F52 0.1- 0.0 240616 F51 0.0 0.0
210602 T12 0.0 0.0 210930 F52 (0.1- 0.4+) 240616 F51 0.0 0.0
210602 T12 0.0 0.0 210930 F52 0.0 0.1-
210608 I52 0.3- 0.3- 210930 F52 0.1- 0.2-
Ephemeris:
2021 KH3 a,e,i = 2.09, 0.48, 6 q = 1.0875
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2024 05 18 17 45 03.5 -21 26 43 0.3418 1.3200 150.6 22.1 20.7
...
2024 06 02 18 20 01.1 -27 28 06 0.2396 1.2380 156.8 18.8 19.7
...
2024 06 10 18 48 18.0 -32 26 20 0.1972 1.1993 157.0 19.3 19.2
...
2024 06 16 19 18 09.6 -37 01 23 0.1717 1.1732 154.6 21.8 18.9
2024 06 17 19 24 08.4 -37 50 24 0.1680 1.1691 153.9 22.5 18.9
2024 06 18 19 30 27.5 -38 39 55 0.1645 1.1651 153.2 23.2 18.9
...
2024 06 24 20 16 23.5 -43 34 19 0.1470 1.1429 147.4 28.6 18.7
...
2024 07 02 21 40 14.8 -48 20 39 0.1339 1.1186 137.2 38.2 18.8
...
2024 07 17 00 22 26.9 -45 13 55 0.1390 1.0913 119.4 54.2 19.2
A. U. Tomatic (C) Copyright 2024 MPC M.P.E.C. 2024-M14
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