MPEC 2021-K73 : 2021 KW1
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M.P.E.C. 2021-K73 Issued 2021 May 22, 11:54 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 KW1
Observations:
K21K01W* C2021 05 19.31296714 49 37.14 -06 51 11.3 21.70GVEK073V00
K21K01W C2021 05 19.31787514 49 37.13 -06 50 34.9 21.65GVEK073V00
K21K01W C2021 05 19.32275314 49 37.11 -06 49 59.2 21.42GVEK073V00
K21K01W C2021 05 19.32763314 49 37.14 -06 49 23.0 21.20GVEK073V00
K21K01W KC2021 05 19.37598 14 49 37.21 -06 43 25.7 20.9 RoEK073291
K21K01W KC2021 05 19.37947 14 49 37.23 -06 43 00.2 21.0 RoEK073291
K21K01W KC2021 05 19.38299 14 49 37.24 -06 42 34.1 21.0 RoEK073291
K21K01W mC2021 05 20.37941314 49 59.31 -04 45 48.9 21.78GVEK073V00
K21K01W mC2021 05 20.38012914 49 59.31 -04 45 43.7 21.54GVEK073V00
K21K01W mC2021 05 20.38084414 49 59.31 -04 45 39.1 21.64GVEK073V00
K21K01W mC2021 05 20.38156014 49 59.32 -04 45 34.3 21.55GVEK073V00
K21K01W KC2021 05 22.15277 14 50 43.51 -01 42 01.2 VEK073291
K21K01W KC2021 05 22.16696 14 50 43.62 -01 40 39.4 22.0 GVEK073291
K21K01W |C2021 05 22.18032 14 50 41.35 -01 38 23.1 21.8 GVEK073807
K21K01W KC2021 05 22.18123 14 50 43.64 -01 39 18.2 22.2 GVEK073291
K21K01W |C2021 05 22.18615 14 50 41.36 -01 37 49.7 21.7 GVEK073807
K21K01W |C2021 05 22.19173 14 50 41.39 -01 37 17.8 21.6 GVEK073807
K21K01W KC2021 05 22.25261514 50 43.60 -01 32 32.5 22.1 GVEK073H01
K21K01W KC2021 05 22.25725214 50 43.62 -01 32 06.0 21.6 GVEK073H01
Observer details:
291 LPL/Spacewatch II. Observers R. A. Mastaler, T. H. Bressi. 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.
Orbital elements:
2021 KW1 Earth MOID = 0.0171 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5 Veres
M 311.08177 (2000.0) P Q
n 0.81338305 Peri. 257.98778 -0.61533276 -0.73821580
a 1.1365956 Node 233.55948 +0.78788018 -0.58696921
e 0.2542371 Incl. 20.09588 -0.02470664 -0.33242228
P 1.21 H 24.90 G 0.15 U 8
Residuals in seconds of arc
210519 V00 0.0 0.2+ 210520 V00 0.0 0.2- 210522 291 0.3- 0.2-
210519 V00 0.0 0.2+ 210520 V00 0.1- 0.1+ 210522 807 0.1- 0.0
210519 V00 0.2- 0.2- 210520 V00 0.0 0.1- 210522 807 0.2+ 0.0
210519 V00 0.2+ 0.1- 210520 V00 0.0 0.0 210522 H01 0.0 0.0
210519 291 0.0 0.1- 210522 291 0.1+ 0.2- 210522 H01 0.1+ 0.1+
210519 291 0.1+ 0.3- 210522 291 0.5+ 0.3+
210519 291 0.1+ 0.1- 210522 807 0.1- 0.0
Ephemeris:
2021 KW1 a,e,i = 1.14, 0.25, 20 q = 0.8476
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2021 04 22 03 28 10.7 -81 43 58 0.1308 1.0236 94.4 78.2 23.3
...
2021 05 07 14 43 39.5 -48 04 18 0.09025 1.0871 148.6 29.0 21.1
...
2021 05 15 14 48 02.1 -17 34 07 0.1111 1.1206 170.7 8.4 21.0
...
2021 05 21 14 50 15.4 -03 37 40 0.1424 1.1453 157.9 19.4 21.9
2021 05 22 14 50 37.9 -01 56 16 0.1485 1.1493 155.8 21.1 22.1
2021 05 23 14 51 00.8 -00 23 32 0.1547 1.1534 153.9 22.7 22.2
...
2021 05 29 14 53 29.3 +06 28 47 0.1947 1.1772 144.4 30.1 23.0
...
2021 06 06 14 57 28.3 +11 27 12 0.2533 1.2079 135.3 36.3 23.8
...
2021 06 21 15 07 55.4 +14 35 14 0.3722 1.2610 123.6 42.1 24.9
M. P. C. Staff (C) Copyright 2021 MPC M.P.E.C. 2021-K73
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