MPEC 2020-H136 : 2020 HX4
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M.P.E.C. 2020-H136 Issued 2020 April 24, 02:03 UT
The Minor Planet Electronic Circulars contain information on unusual
minor planets and routine data on comets. 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
2020 HX4
Observations:
K20H04X C2020 04 19.46944314 37 42.950-15 55 45.27 VEH136F51
K20H04X C2020 04 19.50752014 37 57.076-15 43 31.86 VEH136F51
K20H04X C2020 04 20.41964314 44 47.737-10 46 24.45 20.2 GVEH136F51
K20H04X C2020 04 20.43188214 44 52.206-10 42 22.59 20.6 GVEH136F51
K20H04X C2020 04 20.44417814 44 56.667-10 38 19.62 20.5 GVEH136F51
K20H04X C2020 04 20.45644314 45 01.104-10 34 16.14 20.1 GVEH136F51
K20H04X C2020 04 21.45845714 52 15.210-05 00 48.72 20.1 GVEH136F52
K20H04X C2020 04 21.45910514 52 15.442-05 00 34.65 19.5 GVEH136F52
K20H04X C2020 04 21.47094414 52 19.629-04 56 37.60 20.3 GVEH136F52
K20H04X C2020 04 21.48212114 52 23.531-04 52 55.48 20.3 GVEH136F52
K20H04X C2020 04 21.49456514 52 27.923-04 48 45.42 20.4 GVEH136F52
K20H04X* C2020 04 23.35727 15 05 26.12 +05 22 44.3 20.4 GVEH136G96
K20H04X C2020 04 23.36245 15 05 27.93 +05 24 22.9 20.3 GVEH136G96
K20H04X C2020 04 23.37281 15 05 31.40 +05 27 42.5 20.8 GVEH136G96
K20H04X C2020 04 23.45233 15 05 58.81 +05 52 57.3 20.4 GVEH136I52
K20H04X C2020 04 23.45415 15 05 59.47 +05 53 31.5 20.1 GVEH136I52
K20H04X C2020 04 23.45596 15 06 00.06 +05 54 06.3 20.4 GVEH136I52
K20H04X C2020 04 23.45778 15 06 00.73 +05 54 40.8 20.4 GVEH136I52
K20H04X C2020 04 23.89925 15 09 10.08 +08 12 36.0 20.8 VVEH136033
K20H04X C2020 04 23.90017 15 09 10.41 +08 12 52.8 21.1 VVEH136033
K20H04X C2020 04 23.90109 15 09 10.76 +08 13 10.4 20.6 VVEH136033
K20H04X C2020 04 23.90212 15 09 11.12 +08 13 30.0 21.0 VVEH136033
K20H04X KC2020 04 23.93231115 09 22.04 +08 23 07.6 20.5 GVEH136L01
K20H04X KC2020 04 23.93388815 09 22.61 +08 23 37.6 20.3 GVEH136L01
K20H04X KC2020 04 23.93547315 09 23.17 +08 24 06.7 20.4 GVEH136L01
K20H04X pC2020 04 23.93707515 09 23.75 +08 24 37.4 20.4 GVEH136L01
Observer details:
033 Karl Schwarzschild Observatory, Tautenburg. Observers S. Melnikov, C.
Hoegner, B. Stecklum. Measurer B. Stecklum. 1.34-m f/3 Schmidt + CCD.
F51 Pan-STARRS 1, Haleakala. Observers J. Bulger, K. Chambers, T. Lowe, A.
Schultz, M. Willman. Measurers S. Chastel, M. Huber, Y. Ramanjooloo, R.
Wainscoat, R. Weryk. 1.8-m Ritchey-Chretien + CCD.
F52 Pan-STARRS 2, Haleakala. Observers J. Bulger, K. Chambers, T. Dukes, T.
Lowe, A. Schultz, M. Willman. Measurers S. Chastel, M. Huber, Y.
Ramanjooloo, R. Wainscoat, R. Weryk. 1.8-m Ritchey-Chretien + CCD.
G96 Mt. Lemmon Survey. Observer K. W. Wierzchos. Measurers E. J. Christensen,
G. A. Farneth, D. C. Fuls, A. R. Gibbs, A. D. Grauer, H. Groeller, R. A.
Kowalski, S. M. Larson, G. J. Leonard, T. A. Pruyne, D. Rankin, R. L. Seaman,
F. C. Shelly, K. W. Wierzchos. 1.5-m reflector + 10K CCD.
I52 Steward Observatory, Mt. Lemmon Station. Observer H. Groeller. Measurers
E. J. Christensen, G. A. Farneth, D. C. Fuls, A. R. Gibbs, A. D. Grauer, H.
Groeller, R. A. Kowalski, S. M. Larson, G. J. Leonard, T. A. Pruyne, D.
Rankin, R. L. Seaman, F. C. Shelly, K. W. Wierzchos. 1.0-m reflector + CCD.
L01 Visnjan Observatory, Tican. Observer K. Korlevic. 1.0-m f/2.9 reflector +
CCD.
Orbital elements:
2020 HX4 Earth MOID = 0.0446 AU
Epoch 2020 May 31.0 TT = JDT 2459000.5 Veres
M 19.56894 (2000.0) P Q
n 0.78319203 Peri. 15.89613 -0.69825942 +0.70386081
a 1.1656206 Node 210.19243 -0.68179040 -0.70944041
e 0.1023958 Incl. 15.03246 -0.21816422 -0.03569685
P 1.26 H 26.3 G 0.15 U 6
Residuals in seconds of arc
200419 F51 0.1- 0.2- 200421 F52 0.2- 1.1- 200423 033 0.1- 0.1-
200419 F51 0.0 0.3+ 200421 F52 0.1- 0.4- 200423 033 0.1- 0.5-
200420 F51 0.0 0.1- 200423 G96 0.3- 0.5+ 200423 033 0.2+ 0.1-
200420 F51 0.1+ 0.0 200423 G96 0.5+ 0.1- 200423 033 0.0 0.2+
200420 F51 0.0 0.3- 200423 G96 0.2- 1.3+ 200423 L01 0.4- 0.4-
200420 F51 0.1- 0.3+ 200423 I52 0.1+ 0.1- 200423 L01 0.1- 0.2+
200421 F52 0.0 0.3- 200423 I52 0.4+ 0.5- 200423 L01 0.0 0.3-
200421 F52 0.0 0.8+ 200423 I52 0.3- 0.1- 200423 L01 0.3+ 0.6+
200421 F52 0.3+ 0.7+ 200423 I52 0.1+ 0.2-
Ephemeris:
2020 HX4 a,e,i = 1.17, 0.10, 15 q = 1.0463
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2020 03 25 11 52 18.0 -63 19 59 0.1375 1.0693 118.3 55.2 24.1
...
2020 04 09 13 17 21.8 -52 03 56 0.07464 1.0561 135.5 41.7 22.4
...
2020 04 17 14 18 57.1 -28 07 38 0.05014 1.0512 160.2 18.9 20.9
...
2020 04 23 15 03 00.5 +03 29 06 0.04622 1.0486 158.2 20.9 20.8
2020 04 24 15 09 44.9 +08 45 43 0.04724 1.0482 153.4 25.5 20.9
2020 04 25 15 16 16.6 +13 44 50 0.04870 1.0479 148.6 30.0 21.1
...
2020 05 01 15 50 45.2 +35 47 06 0.06422 1.0466 126.0 51.2 22.3
...
2020 05 09 16 24 45.3 +49 31 24 0.09350 1.0464 110.8 64.4 23.5
...
2020 05 24 17 01 20.5 +58 00 43 0.1521 1.0507 100.3 71.5 24.8
M. P. C. Staff (C) Copyright 2020 MPC M.P.E.C. 2020-H136
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