[Iaude] MPEC Y78: 2021 YR [a=2.01,e=0.60,i=4.0,H=25.7]
mpec at marsden.cfa.harvard.edu
mpec at marsden.cfa.harvard.edu
Fri Dec 31 08:35:01 EST 2021
M.P.E.C. 2021-Y78 Issued 2021 December 31, 13:33 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 at CFA.HARVARD.EDU
URL https://www.minorplanetcenter.net/ ISSN 1523-6714
2021 YR
Observations:
K21Y00R KC2021 12 30.00562 08 48 06.24 +22 56 52.2 18.8 RoEY078K88
K21Y00R KC2021 12 30.00621 08 48 05.52 +22 56 57.4 18.8 RoEY078K88
K21Y00R* C2021 12 30.03795 08 47 27.77 +23 02 15.5 19.1 RoEY078K88
K21Y00R C2021 12 30.03855 08 47 27.10 +23 02 21.9 19.1 RoEY078K88
K21Y00R C2021 12 30.03916 08 47 26.34 +23 02 28.7 19.1 RoEY078K88
K21Y00R KC2021 12 30.04826 08 47 15.60 +23 03 57.2 19.1 RoEY078K88
K21Y00R KC2021 12 30.05120 08 47 12.17 +23 04 25.7 19.2 RoEY078K88
K21Y00R KC2021 12 30.05370 08 47 09.20 +23 04 50.5 19.2 RoEY078K88
K21Y00R KC2021 12 30.06943 08 46 50.89 +23 07 22.0 19.1 RoEY078K88
K21Y00R KC2021 12 30.07091 08 46 49.16 +23 07 36.0 19.2 RoEY078K88
K21Y00R KC2021 12 30.07385 08 46 45.78 +23 08 03.9 19.0 RoEY078K88
K21Y00R KC2021 12 30.08823 08 46 29.23 +23 10 19.8 19.3 RoEY078K88
K21Y00R KC2021 12 30.08970 08 46 27.55 +23 10 33.8 19.2 RoEY078K88
K21Y00R KC2021 12 30.09118 08 46 25.87 +23 10 47.3 19.1 RoEY078K88
K21Y00R KC2021 12 30.09265 08 46 24.18 +23 11 01.7 19.1 RoEY078K88
K21Y00R KC2021 12 30.11692 08 45 56.79 +23 14 45.0 19.3 RoEY078K88
K21Y00R KC2021 12 30.11853 08 45 54.96 +23 15 00.2 19.4 RoEY078K88
K21Y00R KC2021 12 30.12014 08 45 53.21 +23 15 14.5 19.3 RoEY078K88
K21Y00R KC2021 12 30.12176 08 45 51.40 +23 15 29.4 19.2 RoEY078K88
K21Y00R KC2021 12 30.12337 08 45 49.60 +23 15 44.3 19.2 RoEY078K88
K21Y00R KC2021 12 30.13710 08 45 34.38 +23 17 47.8 19.3 RoEY078K88
K21Y00R KC2021 12 30.13871 08 45 32.60 +23 18 02.3 19.1 RoEY078K88
K21Y00R KC2021 12 30.14033 08 45 30.88 +23 18 16.4 19.1 RoEY078K88
K21Y00R KC2021 12 30.14194 08 45 29.10 +23 18 31.0 19.2 RoEY078K88
K21Y00R KC2021 12 30.14355 08 45 27.32 +23 18 45.8 19.2 RoEY078K88
K21Y00R KC2021 12 30.14644 08 45 24.16 +23 19 10.9 19.2 RoEY078K88
K21Y00R KC2021 12 30.14806 08 45 22.42 +23 19 25.5 19.1 RoEY078K88
K21Y00R KC2021 12 30.14967 08 45 20.65 +23 19 39.5 19.3 RoEY078K88
K21Y00R KC2021 12 30.15128 08 45 18.88 +23 19 53.9 19.1 RoEY078K88
K21Y00R KC2021 12 30.15289 08 45 17.17 +23 20 08.0 19.1 RoEY078K88
K21Y00R KC2021 12 30.86269208 35 36.95 +24 48 37.5 18.4 VvEY078L06
K21Y00R KC2021 12 30.86340308 35 36.42 +24 48 42.1 18.5 VvEY078L06
K21Y00R KC2021 12 30.86411408 35 35.89 +24 48 46.9 18.5 VvEY078L06
K21Y00R KC2021 12 30.88024 08 35 25.01 +24 50 26.0 XEY078I93
K21Y00R KC2021 12 30.88949 08 35 18.15 +24 51 26.6 XEY078I93
K21Y00R KC2021 12 30.89863 08 35 11.35 +24 52 25.6 18.9 GXEY078I93
K21Y00R KC2021 12 30.91218208 35 01.62 +24 54 07.1 19.1 GVEY078B49
K21Y00R KC2021 12 30.91391208 35 00.32 +24 54 18.3 19.0 GVEY078B49
K21Y00R KC2021 12 30.91395508 34 58.42 +24 54 10.6 18.3 VvEY078L06
K21Y00R KC2021 12 30.91573208 34 57.07 +24 54 21.5 18.4 VvEY078L06
K21Y00R KC2021 12 30.91856 08 34 55.05 +24 54 38.8 19.4 GVEY078204
K21Y00R KC2021 12 30.92314208 34 53.38 +24 55 17.6 19.0 GVEY078B49
K21Y00R KC2021 12 30.92637 08 34 49.14 +24 55 28.1 VEY078204
K21Y00R KC2021 12 30.93026008 34 48.06 +24 56 02.2 19.4 GVEY078B49
K21Y00R KC2021 12 30.93101308 34 45.58 +24 56 06.7 18.8 RqEY078104
K21Y00R KC2021 12 30.93602708 34 41.77 +24 56 38.3 18.5 RqEY078104
K21Y00R KC2021 12 30.93609 08 34 41.81 +24 56 29.0 VEY078204
K21Y00R KC2021 12 30.94104408 34 37.94 +24 57 09.2 18.9 RqEY078104
K21Y00R IC2021 12 31.01900408 33 38.13 +25 04 50.4 19.2 VSEY078L01
K21Y00R hC2021 12 31.02055208 33 36.98 +25 04 59.4 19.1 VSEY078L01
K21Y00R hC2021 12 31.02211108 33 35.80 +25 05 08.8 19.1 VSEY078L01
K21Y00R hC2021 12 31.02366908 33 34.58 +25 05 17.6 19.3 VSEY078L01
K21Y00R hC2021 12 31.02522708 33 33.43 +25 05 26.8 19.4 VSEY078L01
K21Y00R KC2021 12 31.06913208 33 04.23 +25 09 38.7 XEY078958
K21Y00R KC2021 12 31.07430108 33 00.41 +25 10 06.2 19.4 GXEY078958
K21Y00R KC2021 12 31.07948508 32 56.56 +25 10 34.7 19.3 GXEY078958
Observer details:
104 San Marcello Pistoiese. Observers P. Bacci, M. Maestripieri. Measurers
P. Bacci, L. Tesi, G. Fagioli. 0.60-m reflector + CCD.
204 Schiaparelli Observatory. Observer L. Buzzi. 0.84-m f/3.5 reflector +
CCD.
958 Observatoire de Dax. Observer P. Dupouy. 0.32-m Schmidt-Cassegrain +
CCD.
B49 Paus Observatory, Sabadell. Observer J. Camarasa. 0.30-m f/4.0 reflector
+ CCD.
I93 St Pardon de Conques. Observer F. Losse. 0.40-m f/3.7 reflector + CCD.
K88 GINOP-KHK, Piszkesteto. Observer K. Sarneczky. 0.60-m Schmidt + CCD.
L01 Visnjan Observatory, Tican. Observer K. Korlevic. 1.0-m f/2.9 reflector
+ CCD.
L06 Sormano 2 Observatory, Bellagio Via Lattea. Observer G. Ventre. Measurer
P. Sicoli. 0.36-m Schmidt-Cassegrain + CCD.
Orbital elements:
2021 YR Earth MOID = 0.0017 AU
Epoch 2022 Jan. 21.0 TT = JDT 2459600.5 Veres
M 22.06193 (2000.0) P Q
n 0.34470623 Peri. 299.90090 +0.79590777 -0.60141082
a 2.0145125 Node 97.15739 +0.57682369 +0.71841422
e 0.5996441 Incl. 4.01895 +0.18386206 +0.34955118
P 2.86 H 25.79 G 0.15 U 8
Residuals in seconds of arc
211230 K88 0.5- 0.6+ 211230 K88 0.2+ 0.2+ 211230 L06 0.1- 0.6+
211230 K88 0.7- 0.2- 211230 K88 0.2- 0.0 211230 L06 0.3- 0.2+
211230 K88 0.2+ 0.5- 211230 K88 0.3- 0.1+ 211230 204 0.1+ 0.0
211230 K88 0.8+ 0.0 211230 K88 0.5+ 0.3- 211230 B49 0.2- 0.4+
211230 K88 0.2+ 0.8+ 211230 K88 0.3+ 0.0 211230 204 0.1- 0.1-
211230 K88 0.1- 0.1- 211230 K88 0.0 0.4+ 211230 B49 0.3+ 0.2-
211230 K88 0.2+ 0.2- 211230 K88 0.0 0.2- 211230 104 0.2- 0.3+
211230 K88 0.4- 0.2+ 211230 K88 0.3+ 0.1+ 211230 104 0.2- 0.5+
211230 K88 0.2- 0.1+ 211230 K88 0.0 0.1- 211230 204 0.2+ 0.1-
211230 K88 0.4- 0.0 211230 K88 0.2- 0.0 211230 104 0.5- 0.2+
211230 K88 0.1- 0.2- 211230 K88 0.3+ 0.1- 211231 L01 0.3+ 0.7-
211230 K88 0.2- 0.3- 211230 L06 0.2- 0.1- 211231 L01 0.4+ 0.5-
211230 K88 0.1- 0.1- 211230 L06 0.2- 0.2- 211231 L01 0.3+ 0.1-
211230 K88 0.1- 0.4- 211230 L06 0.2- 0.1- 211231 L01 0.3- 0.2-
211230 K88 0.3- 0.3+ 211230 I93 0.4+ 0.6+ 211231 L01 0.1- 0.2+
211230 K88 0.1+ 0.5- 211230 I93 0.1+ 0.6+ 211231 958 0.2- 0.2+
211230 K88 0.3- 0.0 211230 I93 0.3- 0.2+ 211231 958 0.3- 0.9-
211230 K88 0.5+ 0.4- 211230 B49 0.0 0.1+ 211231 958 0.7- 0.9-
211230 K88 0.4+ 0.2- 211230 B49 0.0 0.1+
Ephemeris:
2021 YR a,e,i = 2.01, 0.60, 4 q = 0.8065
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2021 12 01 19 24 14.1 -31 22 38 0.2217 0.8296 40.3 129.7 27.8
...
2021 12 16 19 24 51.3 -32 51 58 0.09033 0.9040 26.2 151.2 29.0
...
2021 12 24 18 30 19.1 -37 11 23 0.02503 0.9594 14.5 165.1 30.9
...
2021 12 30 08 48 09.9 +22 58 11 0.02589 1.0058 149.6 29.7 19.2
2021 12 31 08 33 49.4 +25 04 29 0.03379 1.0139 154.0 25.1 19.6
2022 01 01 08 24 37.1 +26 20 04 0.04181 1.0220 157.1 22.0 20.0
...
2022 01 07 08 02 25.0 +28 58 29 0.09107 1.0722 166.7 12.2 21.5
...
2022 01 15 07 53 18.2 +29 40 20 0.1599 1.1419 171.4 7.4 22.6
...
2022 01 30 07 48 36.2 +29 26 34 0.3034 1.2771 162.0 13.8 24.5
M. P. C. Staff (C) Copyright 2021 MPC M.P.E.C. 2021-Y78
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