MPEC 2021-K78 : 2021 KE2
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M.P.E.C. 2021-K78 Issued 2021 May 23, 13:02 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 KE2
Observations:
K21K02E* C2021 05 19.42182721 25 28.15 +12 42 37.9 21.80GVEK078V00
K21K02E C2021 05 19.42618021 25 29.01 +12 42 34.2 21.74GVEK078V00
K21K02E C2021 05 19.43051521 25 29.86 +12 42 30.2 21.46GVEK078V00
K21K02E C2021 05 19.43485421 25 30.73 +12 42 26.5 22.11GVEK078V00
K21K02E KC2021 05 19.46022 21 25 35.75 +12 42 04.3 22.1 RoEK078291
K21K02E KC2021 05 19.46322 21 25 36.35 +12 42 01.8 21.8 RoEK078291
K21K02E KC2021 05 19.46622 21 25 36.96 +12 41 58.6 21.9 RoEK078291
K21K02E mC2021 05 20.47027021 29 00.90 +12 26 32.6 21.73GVEK078V00
K21K02E mC2021 05 20.47098521 29 01.05 +12 26 32.0 22.14GVEK078V00
K21K02E mC2021 05 20.47170121 29 01.19 +12 26 31.2 21.96GVEK078V00
K21K02E |C2021 05 22.39591 21 35 40.21 +11 54 45.2 21.7 GVEK078807
K21K02E |C2021 05 22.40145 21 35 41.36 +11 54 39.3 21.7 GVEK078807
K21K02E KC2021 05 22.40274821 35 42.02 +11 54 25.8 21.41GVEK078V06
K21K02E |C2021 05 22.40699 21 35 42.50 +11 54 33.5 21.7 GVEK078807
K21K02E KC2021 05 22.40990621 35 43.50 +11 54 18.3 21.53GVEK078V06
K21K02E KC2021 05 22.41706321 35 44.99 +11 54 10.8 21.40GVEK078V06
K21K02E KC2021 05 22.42422021 35 46.48 +11 54 03.0 21.17GVEK078V06
K21K02E C2021 05 22.43353221 35 48.37 +11 53 53.4 21.4 GVEK078H01
K21K02E C2021 05 22.43910121 35 49.52 +11 53 47.7 21.9 GVEK078H01
K21K02E C2021 05 22.44887021 35 51.53 +11 53 37.7 21.5 GVEK078H01
K21K02E KC2021 05 23.42999921 39 19.74 +11 36 01.0 21.21GVEK078V06
K21K02E KC2021 05 23.43477021 39 20.81 +11 35 56.2 21.08GVEK078V06
K21K02E KC2021 05 23.43954221 39 21.77 +11 35 50.7 20.85GVEK078V06
Observer details:
291 LPL/Spacewatch II. Observer R. A. Mastaler. 1.8-m f/2.7 reflector + CCD.
807 Cerro Tololo Observatory, La Serena. Observers T. Linder, R. Holmes, L.
Horn. 1.00-m f/10.0 astrograph + 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.
V00 Kitt Peak-Bok. Observer H. Groeller. Measurers M. J. Brucker, E. J.
Christensen, C. E. Woodward, G. A. Farneth, D. C. Fuls, A. R. Gibbs, A. D.
Grauer, H. Groeller, R. A. Kowalski, S. M. Larson, G. J. Leonard, R. S.
McMillan, T. A. Pruyne, D. Rankin, R. L. Seaman, F. C. Shelly, K. W.
Wierzchos. 2.25-m reflector + CCD.
V06 Catalina Sky Survey-Kuiper. Observer D. C. Fuls. 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 KE2 Earth MOID = 0.1540 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5 Veres
M 294.18074 (2000.0) P Q
n 0.31425813 Peri. 205.35438 +0.65714816 +0.46427737
a 2.1426194 Node 113.26838 -0.53314841 +0.84318379
e 0.4681261 Incl. 40.26900 -0.53283118 -0.27108601
P 3.14 H 19.99 G 0.15 U 9
Residuals in seconds of arc
210519 V00 0.1+ 0.1- 210520 V00 0.0 0.0 210522 V06 0.1+ 0.4-
210519 V00 0.0 0.1+ 210520 V00 0.1+ 0.0 210522 H01 0.0 0.1-
210519 V00 0.2- 0.1- 210522 807 0.2- 0.0 210522 H01 0.1- 0.0
210519 V00 0.0 0.0 210522 807 0.0 0.1- 210522 H01 0.1- 0.1+
210519 291 0.2- 0.2+ 210522 V06 0.0 0.1+ 210523 V06 0.2- 0.0
210519 291 0.1- 0.3+ 210522 807 0.1- 0.1- 210523 V06 0.8+ 0.4+
210519 291 0.1+ 0.2- 210522 V06 0.1- 0.0 210523 V06 0.1+ 0.1+
210520 V00 0.0 0.1+ 210522 V06 0.0 0.1-
Ephemeris:
2021 KE2 a,e,i = 2.14, 0.47, 40 q = 1.1396
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2021 04 23 20 08 24.5 +15 53 08 1.1063 1.4310 85.2 44.4 22.7
...
2021 05 08 20 49 42.1 +14 47 38 0.9286 1.3472 88.0 48.5 22.3
...
2021 05 16 21 14 13.3 +13 29 16 0.8360 1.3059 89.5 50.7 22.1
...
2021 05 22 21 34 16.9 +12 01 29 0.7687 1.2770 90.6 52.4 21.9
2021 05 23 21 37 47.6 +11 43 56 0.7578 1.2723 90.7 52.7 21.8
2021 05 24 21 41 21.5 +11 25 28 0.7469 1.2678 90.9 53.0 21.8
...
2021 05 30 22 03 58.7 +09 13 35 0.6839 1.2416 91.9 54.7 21.6
...
2021 06 07 22 37 57.9 +05 11 40 0.6078 1.2104 93.1 56.9 21.4
...
2021 06 22 23 56 06.1 -06 22 44 0.5057 1.1659 93.9 60.4 21.0
M. P. C. Staff (C) Copyright 2021 MPC M.P.E.C. 2021-K78
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