MPEC 2021-M90 : 2021 MK1
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M.P.E.C. 2021-M90 Issued 2021 June 26, 02:19 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 MK1
Observations:
K21M01K* C2021 06 23.52935523 48 05.89 +05 28 00.2 17.17oVEM090T08
K21M01K C2021 06 23.53303523 48 02.79 +05 29 00.5 17.23oVEM090T08
K21M01K C2021 06 23.53902823 47 57.78 +05 30 39.0 17.25oVEM090T08
K21M01K C2021 06 23.54963023 47 48.80 +05 33 34.1 17.18oVEM090T08
K21M01K bC2021 06 23.99501323 41 44.72 +07 36 39.8 17.8 GVEM090L01
K21M01K bC2021 06 23.99812623 41 42.03 +07 37 33.0 17.7 GVEM090L01
K21M01K KC2021 06 24.01221623 41 29.94 +07 41 34.4 17.5 GVEM090L01
K21M01K KC2021 06 24.01403523 41 28.35 +07 42 05.4 17.7 GVEM090L01
K21M01K IC2021 06 24.02369223 41 20.02 +07 44 51.6 17.8 GVEM090L01
K21M01K IC2021 06 24.02524823 41 18.68 +07 45 18.4 17.9 GVEM090L01
K21M01K KC2021 06 24.02706623 41 17.11 +07 45 49.4 17.6 GVEM090L01
K21M01K KC2021 06 24.04643523 41 00.46 +07 51 06.0 17.1 GVEM090J95
K21M01K KC2021 06 24.05593523 40 52.25 +07 53 49.3 17.3 GVEM090J95
K21M01K KC2021 06 24.06137923 40 47.54 +07 55 23.4 17.3 GVEM090J95
K21M01K KC2021 06 24.06755523 40 42.18 +07 57 09.7 17.1 GVEM090J95
K21M01K KC2021 06 24.07903623 40 32.20 +08 00 27.8 17.3 GVEM090J95
K21M01K pC2021 06 24.07908323 40 31.50 +08 00 45.3 17.2 GVEM090L01
K21M01K KC2021 06 24.08064223 40 30.12 +08 01 12.0 17.4 GVEM090L01
K21M01K KC2021 06 24.08219623 40 28.73 +08 01 39.0 17.1 GVEM090L01
K21M01K KC2021 06 24.08377823 40 27.35 +08 02 06.2 17.4 GVEM090L01
K21M01K pC2021 06 24.08549523 40 25.82 +08 02 36.0 17.3 GVEM090L01
K21M01K KC2021 06 24.21514523 38 38.35 +08 42 55.6 17.1 GXEM090Y00
K21M01K KC2021 06 24.22075223 38 33.28 +08 44 33.8 16.8 GXEM090Y00
K21M01K KC2021 06 24.22323523 38 30.99 +08 45 16.8 17.5 GXEM090Y00
K21M01K C2021 06 24.55601423 33 37.92 +10 21 03.8 17.38oVEM090T08
K21M01K C2021 06 24.55945123 33 34.64 +10 22 05.9 17.75oVEM090T08
K21M01K C2021 06 24.56593123 33 28.51 +10 24 00.8 17.49oVEM090T08
K21M01K C2021 06 24.57793223 33 17.04 +10 27 36.2 17.03oVEM090T08
K21M01K KC2021 06 25.00066 23 26 52.41 +12 33 43.5 17.8 RVEM090160
K21M01K KC2021 06 25.00347 23 26 49.70 +12 34 34.2 17.7 RVEM090160
K21M01K KC2021 06 25.00535 23 26 47.91 +12 35 08.8 17.5 RVEM090160
K21M01K KC2021 06 25.00725 23 26 46.05 +12 35 44.5 17.5 RVEM090160
K21M01K KC2021 06 25.01010 23 26 43.33 +12 36 37.5 16.8 RVEM090160
K21M01K HC2021 06 25.07108423 25 44.65 +12 58 39.6 18.1 GVEM090L81
K21M01K KC2021 06 25.07214523 25 43.56 +12 58 59.4 VEM090L81
K21M01K KC2021 06 25.11470523 25 01.83 +13 08 57.7 18.3 VZEM090B37
K21M01K KC2021 06 25.12167823 24 54.89 +13 11 07.2 18.5 VZEM090B37
K21M01K KC2021 06 25.12867523 24 47.88 +13 13 17.2 18.4 VZEM090B37
K21M01K KC2021 06 25.13274923 24 43.81 +13 14 32.9 17.5 VZEM090B37
K21M01K KC2021 06 25.13386023 24 42.67 +13 14 53.5 18.3 VZEM090B37
K21M01K KC2021 06 25.13501723 24 41.52 +13 15 14.8 18.1 VZEM090B37
K21M01K 2C2021 06 25.25767 23 22 46.32 +13 52 52.9 18.3 VVEM090I22
K21M01K 2C2021 06 25.25811 23 22 45.84 +13 53 01.7 17.9 VVEM090I22
K21M01K KC2021 06 25.92800823 11 37.67 +17 23 08.1 17.4 GVEM090587
K21M01K KC2021 06 25.94324723 11 21.85 +17 28 02.0 17.2 GVEM090587
K21M01K KC2021 06 25.94472523 11 20.33 +17 28 30.6 17.3 GVEM090587
K21M01K KC2021 06 25.94657223 11 18.36 +17 29 06.8 17.3 GVEM090587
K21M01K KC2021 06 25.95486223 11 08.93 +17 31 31.1 17.6 GVEM090J69
K21M01K KC2021 06 25.95887123 11 05.44 +17 33 04.3 17.3 GVEM090587
K21M01K KC2021 06 25.95933223 11 04.32 +17 32 56.4 17.4 GVEM090J69
K21M01K KC2021 06 25.96087223 11 03.33 +17 33 43.2 17.4 GVEM090587
K21M01K KC2021 06 25.96192023 11 02.06 +17 34 05.7 17.5 GVEM090595
K21M01K KC2021 06 25.96412 23 11 00.19 +17 34 52.4 17.8 GVEM090K83
K21M01K KC2021 06 25.96672 23 10 57.42 +17 35 42.7 17.7 GVEM090K83
K21M01K KC2021 06 25.96734623 10 56.32 +17 35 51.3 17.5 GVEM090595
K21M01K KC2021 06 25.96932 23 10 54.69 +17 36 33.0 18.0 GVEM090K83
K21M01K KC2021 06 26.00447323 10 18.12 +17 47 53.0 18.4 GVEM090B49
K21M01K KC2021 06 26.00608823 10 16.38 +17 48 23.9 18.1 GVEM090B49
K21M01K KC2021 06 26.00854223 10 13.75 +17 49 11.5 17.9 GVEM090B49
K21M01K KC2021 06 26.01338523 10 08.60 +17 50 45.7 18.3 GVEM090B49
K21M01K KC2021 06 26.04738 23 09 30.71 +18 01 41.4 18.3 GVEM090G18
K21M01K KC2021 06 26.05161523 09 26.13 +18 02 59.8 17.7 GVEM090203
K21M01K KC2021 06 26.05721723 09 20.03 +18 04 48.1 17.7 GVEM090203
K21M01K KC2021 06 26.05847 23 09 18.49 +18 05 15.4 18.5 GVEM090G18
Observer details:
160 Castelmartini. Observers M. Jaeger, E. Prosperi, S. Prosperi. Measurer
E. Prosperi. 0.36-m f/10.2 Schmidt-Cassegrain + CCD.
203 GiaGa Observatory. Observers S. Foglia, G. Galli. Measurer G. Galli.
0.36-m f/5.76 Schmidt-Cassegrain + CCD.
587 Sormano. Observers M. Calcagno, E. Colzani. Measurer P. Sicoli. 0.5-m
f/6.8 reflector + CCD.
595 Farra d'Isonzo. Observer E. Pettarin. 0.40-m f/5.15 reflector + CCD.
B37 Obs. de L Ametlla del Valles, Barcelona. Observer A. Garrigos. 0.51-m
f/4.0 reflector + CCD.
B49 Paus Observatory, Sabadell. Observer J. Camarasa. 0.30-m f/4 reflector +
CCD.
G18 ALMO Observatory, Padulle. Observers A. Valvasori, E. Guido. Measurer A.
Valvasori. 0.23-m f/5.2 reflector + CCD.
I22 Abbey Ridge Observatory, Stillwater Lake. Observer F. D. Romanov. 0.35-m
f/6.2 Schmidt-Cassegrain + CCD.
J69 North Observatory, Clanfield. Observer D. Briggs. 0.41-m f/4.5 Newtonian
reflector + CCD.
J95 Great Shefford. Observer P. Birtwhistle. 0.41-m f/6.3 Schmidt-Cassegrain
+ CCD.
K83 Beppe Forti Astronomical Observatory, Montelupo. Observers M. Tombelli,
A. Mazzanti, M. Lombardo, A. Squilloni, M. Iozzi, L. Grazzini. Measurers
M. Tombelli, F. Bernardi, T. Bitossi. 0.40-m f/8 Ritchey-Chretien + CCD.
L01 Visnjan Observatory, Tican. Observer K. Korlevic. 1.0-m f/2.9 reflector
+ CCD.
L81 Skygems Namibia Remote Observatory. Observer L. Demetz. Measurer L.
Buzzi. 0.51-m f/6.7 astrograph + CCD.
T08 ATLAS-MLO, Mauna Loa. Observers L. Denneau, J. Tonry, A. Heinze, H.
Weiland. Measurers L. Denneau, J. Tonry, A. Heinze, H. Weiland, A.
Fitzsimmons, J. Robinson, N. Erasmus. 0.5-m reflector + CCD.
Y00 SONEAR Observatory, Oliveira. Observers C. Jacques, E. Pimentel, J.
Barros. Measurer C. Jacques. 0.45-m f/2.9 reflector + CCD.
Orbital elements:
2021 MK1 PHA, Earth MOID = 0.0014 AU
Epoch 2021 July 5.0 TT = JDT 2459400.5 Veres
M 164.79386 (2000.0) P Q
n 1.35794117 Peri. 198.99328 -0.37273114 -0.86756854
a 0.8076355 Node 274.01869 +0.88837216 -0.23112070
e 0.2881185 Incl. 19.27166 +0.26807911 -0.44034993
P 0.73 H 21.38 G 0.15 U 7
Residuals in seconds of arc
210623 T08 0.0 0.2+ 210624 Y00 0.1+ 0.0 210625 587 0.5+ 0.3-
210623 T08 0.1- 0.1- 210624 Y00 0.5- 0.4- 210625 587 0.9+ 0.3-
210623 T08 0.2+ 0.2- 210624 T08 0.2- 0.6+ 210625 587 0.3+ 0.2+
210623 T08 0.1- 0.1+ 210624 T08 (0.5- 1.1+) 210625 J69 0.0 0.8+
210623 L01 0.2+ 1.0+ 210624 T08 0.1+ 0.2- 210625 587 0.1- 0.2-
210623 L01 0.1- 0.6+ 210624 T08 0.1- 0.0 210625 J69 0.4+ 0.2-
210624 L01 0.0 0.3+ 210625 160 0.3+ 0.6+ 210625 587 0.3- 0.0
210624 L01 0.4- 0.0 210625 160 0.1+ 0.7- 210625 595 0.3- 0.5-
210624 L01 0.1- 0.3+ 210625 160 0.3+ 0.7- 210625 K83 0.1+ 0.2+
210624 L01 0.0 0.3+ 210625 160 0.2- 0.1- 210625 K83 0.2- 0.2+
210624 L01 0.1+ 0.0 210625 160 0.2+ 0.0 210625 595 0.3- 0.1+
210624 J95 0.3+ 0.2- 210625 L81 0.4+ 0.1- 210625 K83 0.1+ 0.2+
210624 J95 0.0 0.4- 210625 L81 0.0 0.1+ 210626 B49 0.0 0.0
210624 J95 0.0 0.2- 210625 B37 0.1- 0.1- 210626 B49 0.2- 0.4-
210624 J95 0.1- 0.3- 210625 B37 0.1+ 0.0 210626 B49 0.3- 0.4-
210624 J95 0.1+ 0.3- 210625 B37 0.0 0.1+ 210626 B49 0.2+ 0.1-
210624 L01 0.1- 0.0 210625 B37 0.2+ 0.2+ 210626 G18 1.3+ 0.2-
210624 L01 0.1- 0.2- 210625 B37 0.2- 0.2+ 210626 203 0.3- 0.2-
210624 L01 0.3- 0.0 210625 B37 0.0 0.0 210626 203 0.0 0.2-
210624 L01 0.1+ 0.1- 210625 I22 0.0 0.4+ 210626 G18 0.1- 0.6-
210624 L01 0.0 0.1+ 210625 I22 0.6- 1.0+
210624 Y00 0.0 0.1- 210625 587 0.1+ 0.4+
Ephemeris:
2021 MK1 a,e,i = 0.81, 0.29, 19 q = 0.5749
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2021 05 27 02 05 27.2 -32 43 12 0.1820 0.9422 62.2 108.0 21.6
...
2021 06 11 01 21 57.9 -24 36 16 0.1063 0.9917 74.2 99.9 20.1
...
2021 06 19 00 35 24.8 -10 46 41 0.06891 1.0113 84.0 92.1 18.9
...
2021 06 25 23 26 45.8 +12 35 03 0.05012 1.0227 95.7 81.5 17.8
2021 06 26 23 10 14.7 +17 47 51 0.04869 1.0243 97.9 79.4 17.6
2021 06 27 22 51 52.8 +23 09 02 0.04792 1.0258 99.9 77.5 17.5
...
2021 07 03 20 28 20.1 +47 57 19 0.05703 1.0335 105.6 71.4 17.7
...
2021 07 11 17 48 48.4 +53 17 52 0.09069 1.0393 102.0 73.1 18.8
...
2021 07 26 16 14 02.2 +48 34 53 0.1663 1.0365 92.6 78.2 20.3
M. P. C. Staff (C) Copyright 2021 MPC M.P.E.C. 2021-M90
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