[Iaude] MPEC D85: 2021 CF6 [a=2.09,e=0.53,i=6.9,H=23.79]
mpec at cfa.harvard.edu
mpec at cfa.harvard.edu
Tue Feb 20 09:12:42 EST 2024
M.P.E.C. 2024-D85 Issued 2024 February 20, 14:11 UT
The Minor Planet Electronic Circulars contain information on unusual
minor planets, routine data on comets and natural satellites,
and occasional editorial announcements. 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 at CFA.HARVARD.EDU
URL https://www.minorplanetcenter.net/ ISSN 1523-6714
2021 CF6
Revision to MPEC 2021-C238
Additional Observations:
K21C06F 0C2024 02 06.24077905 26 07.044-01 01 49.71 22.47GVED085T12
K21C06F 0C2024 02 06.24804705 26 06.419-01 01 45.43 22.61GVED085T12
K21C06F 0C2024 02 06.25529405 26 05.789-01 01 41.24 22.62GVED085T12
K21C06F 0C2024 02 07.24283505 24 57.199-00 51 39.07 22.52GVED085T12
K21C06F 0C2024 02 07.24653605 24 56.886-00 51 36.72 22.66GVED085T12
K21C06F 0C2024 02 07.25039005 24 56.560-00 51 34.25 22.59GVED085T12
Observer details:
T12 University of Hawaii 88-inch telescope, Maunakea. Observer D. J. Tholen.
2.24-m f/10.1 reflector + 2112 x 2112 pixels STA1600 10k CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
240206 T12 1.46+ 0.73+ 240207 T12 1.44+ 0.75+ MPO606167 +0.62 days
Orbital elements:
2021 CF6 Earth MOID = 0.0042 AU
Epoch 2024 Mar. 31.0 TT = JDT 2460400.5 Veres
M 4.07888 (2000.0) P Q
n 0.32715656 Peri. 7.02015 -0.99670128 -0.07750651
a 2.0859263 Node 168.45177 +0.06738511 -0.95561214
e 0.5275750 Incl. 6.90524 +0.04523061 -0.28425019
P 3.01 H 23.79 G 0.15 U 0
Residuals in seconds of arc
210209 G96 0.2- 0.5- 210217 807 0.3+ 0.5- 210303 H36 0.2+ 0.1-
210209 G96 0.2- 0.1+ 210218 291 0.1+ 0.2+ 210303 H36 0.4- 0.0
210209 G96 0.6+ 0.4+ 210218 291 0.8+ 0.4+ 210303 H36 0.1- 0.1+
210209 G96 0.0 0.5+ 210218 291 0.1+ 0.4+ 210303 691 0.2- 0.0
210209 V06 0.0 0.2+ 210220 807 0.4+ 0.2- 210303 691 0.1+ 0.1+
210209 V06 0.0 0.0 210220 807 0.2+ 0.1- 210303 691 0.4+ 0.2+
210209 V06 0.0 0.1+ 210220 807 0.3+ 0.1+ 210303 I52 0.0 0.1-
210209 V06 0.1+ 0.1- 210220 291 0.4+ 0.2+ 210303 I52 0.1- 0.2+
210210 807 0.3- 0.3+ 210220 291 0.0 0.1+ 210303 I52 0.4- 0.6-
210210 807 0.0 0.3+ 210222 807 0.6+ 0.2- 210304 W34 0.2- 0.0
210210 807 0.1+ 0.0 210222 807 (0.3+ 1.2-) 210304 W34 0.1+ 0.1-
210210 J04 0.2- 0.3+ 210222 807 (0.2+ 1.3-) 210304 W34 0.7- 0.1+
210210 J04 0.2- 0.0 210222 691 0.1+ 0.1- 210304 I52 0.0 0.0
210211 I52 0.2- 0.3+ 210222 691 0.1- 0.2- 210304 I52 0.3- 0.2-
210211 I52 0.2+ 0.3- 210222 691 0.2+ 0.2+ 210304 I52 0.0 0.3-
210211 I52 (2.7+ 0.0 ) 210223 691 0.4+ 0.2+ 210305 033 0.0 0.1+
210212 I52 0.2- 0.1- 210223 691 0.3+ 0.3+ 210305 033 0.2+ 0.1-
210212 I52 (2.2+ 0.0 ) 210223 691 0.5+ 0.5+ 210305 033 0.1+ 0.2-
210212 I52 (2.3+ 0.4-) 210224 I52 0.0 0.0 210305 K87 0.7- 0.4-
210212 I52 0.1- 0.4- 210224 I52 0.2- 0.3- 210305 K87 0.4- 0.1-
210212 474 0.4- 0.4- 210224 I52 0.0 0.1+ 210305 K87 1.0- 0.1+
210212 474 0.2- 0.0 210224 I52 0.1+ 0.1+ 210306 691 0.4+ 0.4+
210212 474 0.2- 0.4+ 210225 I52 0.0 0.0 210306 691 0.5+ 0.1-
210213 807 0.2+ 0.1- 210225 I52 0.2- 0.2+ 210306 691 0.2- 0.3+
210213 807 0.2+ 0.2- 210225 I52 0.2- 0.5+ 210306 I52 0.3+ 0.1-
210213 807 0.2+ 0.2- 210225 I52 0.1+ 0.1+ 210306 I52 0.4+ 0.0
210213 033 0.5- 0.7- 210226 I52 0.8- 0.4+ 210306 I52 0.3+ 0.0
210213 033 0.6- 0.4- 210226 I52 0.4+ 0.1- 210306 033 0.3- 0.0
210213 033 0.9- 0.5- 210226 I52 0.2+ 0.1- 210306 033 0.1- 0.2-
210213 033 0.3- 0.6- 210226 I52 0.3+ 0.3+ 210306 033 0.1- 0.1-
210214 807 0.2+ 0.0 210302 I52 0.5- 0.2- 210306 033 0.1+ 0.0
210214 807 0.1+ 0.1+ 210302 I52 0.2+ 0.1- 240206 T12 0.1- 0.0
210214 807 0.2- 0.2- 210302 I52 0.3+ 0.1- 240206 T12 0.0 0.0
210215 I52 0.6- 0.2- 210302 734 0.8- 0.4+ 240206 T12 0.0 0.0
210215 I52 0.2- 0.1+ 210302 734 0.5- 0.3+ 240207 T12 0.0 0.0
210215 I52 (0.2- 1.2-) 210302 734 0.0 0.2+ 240207 T12 0.0 0.0
210217 807 0.5+ 0.5+ 210302 734 0.6- 0.4+ 240207 T12 0.0 0.0
210217 807 0.2+ 0.4- 210302 734 0.1- 0.2-
Ephemeris:
2021 CF6 a,e,i = 2.09, 0.53, 7 q = 0.9854
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2024 01 21 05 49 17.0 -02 06 14 0.2768 1.2071 139.1 32.2 22.8
...
2024 02 05 05 27 35.9 -01 13 07 0.2160 1.1159 122.2 48.4 22.5
...
2024 02 13 05 19 01.5 +00 23 15 0.1856 1.0744 113.4 57.5 22.4
...
2024 02 19 05 14 12.4 +02 14 29 0.1625 1.0476 107.0 64.4 22.2
2024 02 20 05 13 31.1 +02 36 59 0.1586 1.0435 106.0 65.6 22.2
2024 02 21 05 12 51.5 +03 00 47 0.1546 1.0395 105.0 66.8 22.2
...
2024 02 27 05 09 18.1 +05 57 23 0.1305 1.0184 98.9 73.9 22.0
...
2024 03 06 05 04 29.3 +12 17 14 0.09743 0.9979 90.6 83.8 21.7
...
2024 03 21 04 25 11.9 +51 16 14 0.04251 0.9859 75.0 102.6 20.7
A. U. Tomatic (C) Copyright 2024 MPC M.P.E.C. 2024-D85
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