[Iaude] MPEC J164: 2021 JF4 [a=1.75,e=0.61,i=41.7,H=22.4]
mpec at marsden.cfa.harvard.edu
mpec at marsden.cfa.harvard.edu
Tue May 11 15:25:38 EDT 2021
M.P.E.C. 2021-J164 Issued 2021 May 11, 19:24 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 at CFA.HARVARD.EDU
URL https://www.minorplanetcenter.net/ ISSN 1523-6714
2021 JF4
Observations:
K21J04F* C2021 05 09.24888012 22 31.31 +00 08 55.2 21.46GVEJ164G96
K21J04F C2021 05 09.25408212 22 30.73 +00 08 18.3 21.41GVEJ164G96
K21J04F C2021 05 09.25929112 22 30.10 +00 07 41.7 VEJ164G96
K21J04F C2021 05 09.26449912 22 29.54 +00 07 03.8 21.41GVEJ164G96
K21J04F KC2021 05 09.33948212 22 21.32 -00 01 50.4 22.19GVEJ164G96
K21J04F KC2021 05 09.34069912 22 21.19 -00 01 59.5 VEJ164G96
K21J04F KC2021 05 09.34191512 22 21.01 -00 02 07.9 VEJ164G96
K21J04F KC2021 05 10.14232112 21 05.91 -01 33 41.7 21.10GVEJ164V06
K21J04F KC2021 05 10.14587312 21 05.54 -01 34 05.0 21.38GVEJ164V06
K21J04F KC2021 05 10.14942512 21 05.18 -01 34 28.6 21.32GVEJ164V06
K21J04F KC2021 05 10.15297712 21 04.82 -01 34 52.3 21.68GVEJ164V06
K21J04F C2021 05 10.23389 12 20 56.69 -01 43 45.7 21.1 GVEJ164G96
K21J04F C2021 05 10.23454112 20 56.52 -01 43 51.3 21.4 GVEJ164H01
K21J04F C2021 05 10.23817912 20 56.17 -01 44 15.6 21.3 GVEJ164H01
K21J04F C2021 05 10.23909 12 20 56.15 -01 44 20.7 21.2 GVEJ164G96
K21J04F C2021 05 10.24929612 20 55.06 -01 45 28.3 21.8 GVEJ164H01
K21J04F C2021 05 10.25714712 20 54.30 -01 46 20.2 20.9 GVEJ164H01
K21J04F KC2021 05 11.20082512 19 35.09 -03 25 36.4 21.80GVEJ164I52
K21J04F KC2021 05 11.20670412 19 34.57 -03 26 11.7 21.62GVEJ164I52
K21J04F KC2021 05 11.21258112 19 34.05 -03 26 48.2 21.22GVEJ164I52
K21J04F C2021 05 11.24842512 19 30.79 -03 30 25.1 21.5 GVEJ164H01
K21J04F C2021 05 11.25798312 19 29.94 -03 31 22.7 21.9 GVEJ164H01
K21J04F C2021 05 11.26360712 19 29.45 -03 31 56.9 21.8 GVEJ164H01
Observer details:
G96 Mt. Lemmon Survey. 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, B. Gray. 1.5-m reflector + 10K
CCD.
H01 Magdalena Ridge Observatory, Socorro. Observers W. H. Ryan, E. V. Ryan.
Measurer W. H. Ryan. 2.4-m f/8.9 Ritchey-Chretien + CCD.
I52 Steward Observatory, Mt. Lemmon Station. Observer T. A. Pruyne.
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.
V06 Catalina Sky Survey-Kuiper. Observer G. J. Leonard. 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. 1.55-m reflector +
1K CCD.
Orbital elements:
2021 JF4 Earth MOID = 0.0004 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5 Veres
M 329.66612 (2000.0) P Q
n 0.42713346 Peri. 79.03165 -0.32384627 -0.84475091
a 1.7461987 Node 39.85201 +0.36873970 -0.52740422
e 0.6053475 Incl. 41.67209 +0.87129480 -0.09077818
P 2.31 H 22.43 G 0.15 U 9
Residuals in seconds of arc
210509 G96 0.1+ 0.3- 210510 V06 0.2- 0.0 210510 H01 0.2+ 0.3-
210509 G96 0.2+ 0.0 210510 V06 0.1- 0.0 210511 I52 0.1+ 0.1+
210509 G96 0.5- 0.7+ 210510 V06 0.2- 0.2- 210511 I52 0.2+ 0.4+
210509 G96 0.3- 0.0 210510 G96 0.2+ 0.7+ 210511 I52 0.2+ 0.5-
210509 G96 0.0 0.1+ 210510 H01 0.1- 0.1- 210511 H01 0.0 0.0
210509 G96 0.1+ 0.3- 210510 H01 0.0 0.4- 210511 H01 0.2- 0.1+
210509 G96 0.7- 0.1- 210510 G96 0.1- 0.1- 210511 H01 0.2- 0.2-
210510 V06 0.1- 0.2- 210510 H01 0.0 0.0
Ephemeris:
2021 JF4 a,e,i = 1.75, 0.61, 42 q = 0.6891
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2021 04 11 21 00 31.0 +69 19 35 0.2870 0.9605 73.4 89.9 22.8
...
2021 04 26 13 25 34.7 +46 01 34 0.1823 1.1076 119.6 52.2 20.9
...
2021 05 04 12 35 17.1 +13 22 48 0.2303 1.1866 136.8 35.6 21.1
...
2021 05 10 12 21 18.6 -01 17 30 0.3022 1.2453 136.1 34.2 21.7
2021 05 11 12 19 51.5 -03 04 47 0.3159 1.2550 135.5 34.3 21.8
2021 05 12 12 18 35.1 -04 43 27 0.3299 1.2647 134.9 34.5 22.0
...
2021 05 18 12 13 54.4 -12 16 45 0.4195 1.3224 130.4 35.6 22.6
...
2021 05 26 12 12 56.1 -18 31 15 0.5488 1.3977 124.3 36.8 23.3
...
2021 06 10 12 19 56.7 -25 02 29 0.8077 1.5334 114.0 37.2 24.4
M. P. C. Staff (C) Copyright 2021 MPC M.P.E.C. 2021-J164
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