MPEC 2021-J84 : 2021 JD2
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Read MPEC 2021-J83
Read MPEC 2021-J85
M.P.E.C. 2021-J84 Issued 2021 May 7, 06:44 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
2021 JD2
Observations:
K21J02D*HC2021 05 06.32183713 55 20.52 +19 03 26.4 19.33GVEJ084G96
K21J02D HC2021 05 06.32653113 55 30.16 +19 05 03.8 VEJ084G96
K21J02D HC2021 05 06.33123113 55 39.88 +19 06 42.6 19.91GVEJ084G96
K21J02D HC2021 05 06.33591713 55 49.35 +19 08 18.3 19.18GVEJ084G96
K21J02D C2021 05 06.35366713 56 25.00 +19 14 13.5 20.3 GVEJ084H01
K21J02D C2021 05 06.35707313 56 32.08 +19 15 23.6 19.8 GVEJ084H01
K21J02D C2021 05 06.36741713 56 53.55 +19 18 56.5 19.3 GVEJ084H01
K21J02D C2021 05 06.37507113 57 09.51 +19 21 33.9 19.0 GVEJ084H01
K21J02D KC2021 05 06.44442213 59 36.70 +19 45 24.1 20.41GVEJ084I52
K21J02D KC2021 05 06.44498613 59 37.87 +19 45 35.2 19.87GVEJ084I52
K21J02D KC2021 05 06.44555513 59 39.06 +19 45 47.6 19.46GVEJ084I52
K21J02D KC2021 05 06.44612013 59 40.28 +19 45 58.7 18.76GVEJ084I52
K21J02D KC2021 05 06.88328214 16 36.94 +22 15 20.1 19.9 GVEJ084J95
K21J02D KC2021 05 06.88775614 16 46.95 +22 16 52.5 19.8 GVEJ084J95
K21J02D KC2021 05 06.89181514 16 55.97 +22 18 16.1 19.7 GVEJ084J95
K21J02D KC2021 05 06.89693714 17 07.35 +22 20 01.5 19.5 GVEJ084J95
K21J02D KC2021 05 06.92636614 18 12.65 +22 31 04.5 19.6 GVEJ084B49
K21J02D KC2021 05 06.92711214 18 14.30 +22 31 19.8 19.5 GVEJ084B49
K21J02D KC2021 05 06.93142014 18 23.47 +22 31 36.6 19.6 GVEJ084Z99
K21J02D KC2021 05 06.93382614 18 28.84 +22 32 25.9 19.8 GVEJ084Z99
K21J02D KC2021 05 06.93624314 18 34.22 +22 33 15.1 19.8 GVEJ084Z99
K21J02D KC2021 05 07.15255 14 27 09.58 +23 46 34.1 20.0 RqEJ084734
K21J02D KC2021 05 07.15592 14 27 17.19 +23 47 41.7 19.5 RqEJ084734
K21J02D KC2021 05 07.15927 14 27 24.83 +23 48 48.5 20.0 RqEJ084734
K21J02D KC2021 05 07.16260 14 27 32.33 +23 49 56.0 19.9 RqEJ084734
K21J02D KC2021 05 07.16593 14 27 39.78 +23 51 03.4 19.4 RqEJ084734
K21J02D KC2021 05 07.16927 14 27 47.41 +23 52 10.9 19.7 RqEJ084734
K21J02D KC2021 05 07.20246614 29 08.09 +24 03 39.4 19.08GVEJ084I52
K21J02D KC2021 05 07.20322114 29 09.78 +24 03 54.7 19.99GVEJ084I52
K21J02D KC2021 05 07.20397514 29 11.45 +24 04 09.4 19.72GVEJ084I52
K21J02D KC2021 05 07.20472814 29 04.35 +24 03 56.1 19.9 VuEJ084H21
K21J02D KC2021 05 07.20472814 29 13.16 +24 04 24.7 19.76GVEJ084I52
K21J02D KC2021 05 07.20653814 29 08.41 +24 04 31.9 20.1 VuEJ084H21
K21J02D KC2021 05 07.20834114 29 12.45 +24 05 07.6 19.8 VuEJ084H21
Observer details:
734 Farpoint Observatory, Eskridge. Observers G. Hug, D. Cromer, D. Goodin,
R. Valentine. Measurer D. Cromer. 0.7-m reflector + CCD.
B49 Paus Observatory, Sabadell. Observer J. Camarasa. 0.30-m f/4 reflector +
CCD.
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. 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.
H21 Astronomical Research Observatory, Westfield. Observer R. Holmes.
Measurers S. Foglia, L. Buzzi, T. Linder, R. Holmes. 0.76-m f/3.0
astrograph + CCD.
I52 Steward Observatory, Mt. Lemmon Station. 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. 1.0-m
reflector + CCD.
J95 Great Shefford. Observer P. Birtwhistle. 0.41-m f/6.3 Schmidt-Cassegrain
+ CCD.
Z99 Clixby Observatory, Cleethorpes. Observer A. Mickleburgh. 0.36-m f/8
Schmidt-Cassegrain + CCD.
Orbital elements:
2021 JD2 Earth MOID = 0.0209 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5 Bell
M 301.60765 (2000.0) P Q
n 0.39487755 Peri. 13.09516 -0.59148199 +0.80087372
a 1.8400421 Node 220.75099 -0.75209740 -0.58980642
e 0.4433383 Incl. 8.23893 -0.29068635 -0.10358417
P 2.50 H 26.45 G 0.15 U 8
Residuals in seconds of arc
210506 G96 0.4- 0.2- 210506 J95 0.6- 0.3- 210507 734 0.7+ 0.1+
210506 G96 0.0 0.3- 210506 J95 0.2+ 0.1- 210507 734 0.2- 0.6+
210506 G96 1.3+ 0.9+ 210506 J95 0.0 0.0 210507 734 1.1+ 1.1+
210506 G96 0.7- 0.5- 210506 J95 0.2- 0.1- 210507 I52 0.2+ 0.0
210506 H01 0.1- 0.3+ 210506 B49 0.1+ 0.4+ 210507 I52 0.1+ 0.1+
210506 H01 0.1+ 0.1+ 210506 B49 0.3+ 0.5+ 210507 I52 0.4- 0.2-
210506 H01 0.1- 0.1+ 210506 Z99 0.2+ 0.2- 210507 I52 0.2- 0.0
210506 H01 0.2- 0.2+ 210506 Z99 0.4+ 0.2+ 210507 H21 0.2+ 0.1-
210506 I52 0.6+ 0.2- 210506 Z99 0.3+ 0.1+ 210507 H21 0.0 0.0
210506 I52 0.1+ 0.5- 210507 734 0.0 0.5+ 210507 H21 0.3- 0.1+
210506 I52 0.4- 0.2+ 210507 734 0.0 0.2+
210506 I52 0.2- 0.1- 210507 734 1.0+ 0.4-
Ephemeris:
2021 JD2 a,e,i = 1.84, 0.44, 8 q = 1.0243
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2021 04 07 10 18 01.3 -23 56 54 0.1355 1.1037 136.9 38.3 23.9
...
2021 04 22 10 39 27.3 -18 40 36 0.07061 1.0534 131.7 45.4 22.5
...
2021 04 30 11 33 49.3 -08 04 17 0.03924 1.0361 136.7 41.8 21.1
...
2021 05 06 13 44 01.9 +17 11 57 0.02420 1.0281 142.4 36.7 19.9
2021 05 07 14 20 57.4 +22 57 35 0.02370 1.0271 139.4 39.7 20.0
2021 05 08 15 01 19.3 +28 09 20 0.02401 1.0263 134.8 44.2 20.1
...
2021 05 14 18 20 08.2 +38 13 42 0.03822 1.0241 109.6 68.3 21.8
...
2021 05 22 19 48 41.7 +35 11 38 0.06841 1.0282 101.6 74.7 23.3
...
2021 06 06 20 29 11.6 +31 15 02 0.1273 1.0565 105.8 67.6 24.5
M. P. C. Staff (C) Copyright 2021 MPC M.P.E.C. 2021-J84
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