MPEC 2021-K61 : 2021 KN1
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M.P.E.C. 2021-K61 Issued 2021 May 20, 22:25 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 KN1
Observations:
K21K01N C2021 05 08.50569815 25 43.617+02 44 13.59 21.97GVEK061F51
K21K01N C2021 05 08.51741415 25 43.658+02 44 24.38 22.71GVEK061F51
K21K01N C2021 05 08.52910915 25 43.705+02 44 35.22 22.35GVEK061F51
K21K01N C2021 05 08.54084015 25 43.778+02 44 46.41 22.08GVEK061F51
K21K01N C2021 05 14.46377815 28 04.561+04 31 56.77 21.64GVEK061F51
K21K01N C2021 05 14.49869615 28 04.845+04 32 41.29 21.50GVEK061F51
K21K01N C2021 05 19.46690915 31 31.142+06 42 09.21 21.10GVEK061F51
K21K01N C2021 05 19.47971115 31 31.497+06 42 33.86 21.09GVEK061F51
K21K01N C2021 05 19.49253015 31 31.874+06 42 58.66 20.94GVEK061F51
K21K01N C2021 05 19.50538315 31 32.270+06 43 23.26 21.12GVEK061F51
K21K01N* C2021 05 20.24968015 32 21.39 +07 08 25.5 21.16GVEK061G96
K21K01N C2021 05 20.25992615 32 21.77 +07 08 47.4 20.95GVEK061G96
K21K01N C2021 05 20.26504615 32 21.95 +07 08 58.2 21.32GVEK061G96
K21K01N C2021 05 20.35401715 32 24.98 +07 12 06.2 20.5 GVEK061H01
K21K01N C2021 05 20.35752015 32 25.11 +07 12 13.6 20.8 GVEK061H01
K21K01N KC2021 05 20.37096215 32 25.88 +07 12 44.2 20.73GVEK061I52
K21K01N C2021 05 20.37287115 32 25.74 +07 12 46.4 20.7 GVEK061H01
K21K01N KC2021 05 20.37480015 32 26.01 +07 12 52.6 20.55GVEK061I52
K21K01N C2021 05 20.37647015 32 25.89 +07 12 54.0 20.6 GVEK061H01
K21K01N KC2021 05 20.37863715 32 26.19 +07 13 01.1 20.36GVEK061I52
K21K01N bC2021 05 20.85065415 33 03.21 +07 30 11.3 20.7 GVEK061L01
K21K01N bC2021 05 20.85259915 33 03.31 +07 30 15.9 20.7 GVEK061L01
K21K01N bC2021 05 20.85531915 33 03.43 +07 30 22.4 20.8 GVEK061L01
K21K01N bC2021 05 20.85765515 33 03.54 +07 30 28.0 20.7 GVEK061L01
K21K01N bC2021 05 20.85999515 33 03.68 +07 30 33.4 20.6 GVEK061L01
Observer details:
F51 Pan-STARRS 1, Haleakala. Observers J. Bulger, K. Chambers, T. Lowe, A.
Schultz, I. Smith. Measurers S. Chastel, M. Huber, Y. Ramanjooloo, R.
Wainscoat, R. Weryk. 1.8-m Ritchey-Chretien + CCD.
G96 Mt. Lemmon Survey. Observer D. Rankin. 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.
I52 Steward Observatory, Mt. Lemmon Station. Observer E. J. Christensen.
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:
2021 KN1 Earth MOID = 0.0148 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5 Veres
M 301.17388 (2000.0) P Q
n 0.29051822 Peri. 219.69944 +0.48809194 +0.86558822
a 2.2578086 Node 79.78382 -0.76910150 +0.48716984
e 0.6051733 Incl. 6.52924 -0.41261259 +0.11585583
P 3.39 H 24.59 G 0.15 U 8
Residuals in seconds of arc
210508 F51 0.0 0.1+ 210519 F51 0.1+ 0.2- 210520 H01 0.0 0.1+
210508 F51 0.0 0.1- 210520 G96 0.0 0.0 210520 I52 0.1+ 0.3+
210508 F51 0.1- 0.1- 210520 G96 0.0 0.1- 210520 L01 0.3- 0.2-
210508 F51 0.2+ 0.1+ 210520 G96 0.1- 0.3- 210520 L01 0.2- 0.1-
210514 F51 0.0 0.1- 210520 H01 0.0 0.0 210520 L01 0.5- 0.1+
210514 F51 0.2- 0.1+ 210520 H01 0.1- 0.1- 210520 L01 0.6- 0.3+
210519 F51 0.1+ 0.1+ 210520 I52 0.0 0.3- 210520 L01 0.3- 0.3+
210519 F51 0.0 0.0 210520 H01 0.0 0.1+
210519 F51 0.0 0.1+ 210520 I52 0.2- 0.0
Ephemeris:
2021 KN1 a,e,i = 2.26, 0.61, 7 q = 0.8914
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2021 04 20 15 19 29.5 -00 55 27 0.3806 1.3605 155.7 17.7 24.1
...
2021 05 05 15 24 39.6 +01 53 07 0.2354 1.2321 159.8 16.4 22.8
...
2021 05 13 15 27 24.3 +04 02 26 0.1666 1.1662 157.6 19.3 22.0
...
2021 05 19 15 31 06.6 +06 27 39 0.1181 1.1188 153.7 23.6 21.3
2021 05 20 15 32 04.2 +07 00 16 0.1102 1.1111 152.8 24.6 21.2
2021 05 21 15 33 11.7 +07 36 47 0.1024 1.1034 151.9 25.6 21.0
...
2021 05 27 15 47 14.6 +14 09 27 0.05646 1.0593 143.9 34.3 19.9
...
2021 06 04 00 15 57.3 +51 32 37 0.01700 1.0058 59.0 120.1 20.6
...
2021 06 19 03 06 16.1 +05 55 36 0.1251 0.9286 43.0 131.7 25.8
M. P. C. Staff (C) Copyright 2021 MPC M.P.E.C. 2021-K61
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