[Iaude] MPEC Y34: 2021 YC [a=1.28,e=0.22,i=6.6,H=25.8]
mpec at marsden.cfa.harvard.edu
mpec at marsden.cfa.harvard.edu
Fri Dec 17 21:48:55 EST 2021
M.P.E.C. 2021-Y34 Issued 2021 December 18, 02:47 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 YC
Observations:
K21Y00C* C2021 12 17.36375107 13 07.08 +17 21 17.6 16.48oVEY034T08
K21Y00C C2021 12 17.37474707 13 27.31 +17 29 33.9 16.92oVEY034T08
K21Y00C C2021 12 17.37939307 13 35.85 +17 33 03.7 16.73oVEY034T08
K21Y00C C2021 12 17.38308807 13 42.59 +17 35 49.2 16.73oVEY034T08
K21Y00C C2021 12 17.52367807 17 49.24 +19 18 16.7 16.90oVEY034T08
K21Y00C C2021 12 17.52413807 17 50.07 +19 18 35.7 16.74oVEY034T08
K21Y00C C2021 12 17.52460007 17 50.85 +19 18 55.3 16.64oVEY034T08
K21Y00C C2021 12 17.52506107 17 51.63 +19 19 15.1 16.54oVEY034T08
K21Y00C C2021 12 17.52552007 17 52.42 +19 19 34.0 16.48oVEY034T08
K21Y00C [C2021 12 17.61976 07 21 28.97 +20 36 45.3 17.0 GVEY034Q62
K21Y00C [C2021 12 17.62186 07 21 32.66 +20 38 14.4 16.8 GVEY034Q62
K21Y00C [C2021 12 17.62331 07 21 35.16 +20 39 14.4 17.5 GVEY034Q62
K21Y00C KC2021 12 17.86104 07 30 14.63 +23 00 26.1 17.2 VqEY034C77
K21Y00C KC2021 12 17.86310 07 30 18.55 +23 01 49.6 16.9 VqEY034C77
K21Y00C KC2021 12 17.87118 07 30 34.41 +23 07 17.4 17.3 VqEY034C77
K21Y00C KC2021 12 17.87374 07 30 39.19 +23 09 00.2 16.8 VqEY034C77
K21Y00C KC2021 12 17.88447407 30 58.46 +23 16 04.8 16.8 GVEY034203
K21Y00C KC2021 12 17.88910907 31 07.22 +23 19 10.6 16.9 GVEY034203
K21Y00C KC2021 12 17.89344207 31 15.43 +23 22 04.8 17.2 GVEY034203
K21Y00C KC2021 12 17.90677507 31 45.81 +23 30 45.2 16.9 GXEY034958
K21Y00C KC2021 12 17.90967307 31 51.32 +23 32 41.2 16.7 GXEY034958
K21Y00C KC2021 12 17.91257207 31 56.80 +23 34 36.9 16.5 GXEY034958
K21Y00C KC2021 12 17.93105607 32 25.42 +23 46 56.8 VEY034204
K21Y00C KC2021 12 17.93233407 32 27.77 +23 47 47.4 VEY034204
K21Y00C KC2021 12 17.93361407 32 30.13 +23 48 38.2 16.9 GVEY034204
K21Y00C KC2021 12 17.96873507 33 30.91 +24 11 49.5 17.0 GVEY034L01
K21Y00C KC2021 12 17.96952907 33 32.32 +24 12 20.6 17.1 GVEY034L01
K21Y00C KC2021 12 17.97032407 33 33.74 +24 12 51.0 17.2 GVEY034L01
K21Y00C KC2021 12 17.97111707 33 35.14 +24 13 21.6 17.2 GVEY034L01
K21Y00C KC2021 12 17.97191007 33 36.57 +24 13 52.3 17.2 GVEY034L01
K21Y00C KC2021 12 17.98818407 34 05.56 +24 24 11.5 16.7 GXEY034595
K21Y00C IC2021 12 17.99100107 34 10.59 +24 25 59.5 XEY034595
K21Y00C KC2021 12 17.99291307 34 17.08 +24 27 08.4 16.8 GVEY034K38
K21Y00C KC2021 12 17.99382007 34 15.56 +24 27 47.7 16.9 GXEY034595
K21Y00C KC2021 12 18.00470407 34 38.19 +24 34 37.7 17.2 GVEY034K38
K21Y00C KC2021 12 18.00897807 34 45.68 +24 37 21.5 17.3 GVEY034K38
Observer details:
203 GiaGa Observatory. Observers S. Foglia, G. Galli. Measurer G. Galli.
0.36-m f/5.76 Schmidt-Cassegrain + CCD.
204 Schiaparelli Observatory. Observer L. Buzzi. 0.84-m f/3.5 reflector +
CCD.
595 Farra d'Isonzo. Observers G. Ierman, E. Pettarin. Measurer E. Pettarin.
0.40-m f/5.15 reflector + CCD.
958 Observatoire de Dax. Observers P. Dupouy, J. B. de Vanssay. Measurer P.
Dupouy. 0.43-m f/2.7 reflector + CCD.
C77 Bernezzo Observatory. Observer A. Mantero. 0.25-m f/4.0 reflector + CCD.
K38 M57 Observatory, Saltrio. Observers G. Baj, M. Bosetti. 0.35-m f/5.6
Ritchey-Chretien + CCD.
L01 Visnjan Observatory, Tican. Observer K. Korlevic. 1.0-m f/2.9 reflector
+ CCD.
Q62 iTelescope Observatory, Siding Spring. Observer M. Suzuki. 0.5-m f/4.5
reflector + CCD.
T08 ATLAS-MLO, Mauna Loa. Observers L. Denneau, R. Siverd, J. Tonry, H.
Weiland. Measurers L. Denneau, N. Erasmus, A. Fitzsimmons, A. Lawrence,
J. Robinson, R. Siverd, J. Tonry, H. Weiland. 0.5-m reflector + CCD.
Orbital elements:
2021 YC Earth MOID = 0.0095 AU
Epoch 2022 Jan. 21.0 TT = JDT 2459600.5 Veres
M 28.76433 (2000.0) P Q
n 0.68260132 Peri. 351.33694 +0.21935087 -0.96880373
a 1.2774913 Node 85.93296 +0.90192340 +0.15627091
e 0.2238190 Incl. 6.64034 +0.37204754 +0.19235056
P 1.44 H 25.85 G 0.15 U 6
Residuals in seconds of arc
211217 T08 0.1+ 0.2+ 211217 C77 0.3- 0.6+ 211217 204 0.1- 0.3+
211217 T08 0.3- 0.0 211217 C77 1.4- 0.5+ 211217 L01 0.2+ 0.4-
211217 T08 0.2+ 0.5+ 211217 C77 (2.0+ 1.2+) 211217 L01 0.1+ 0.0
211217 T08 0.2+ 0.1- 211217 C77 0.1+ 0.6+ 211217 L01 0.1+ 0.4-
211217 T08 0.2- 0.2+ 211217 203 0.7+ 0.2+ 211217 L01 0.1- 0.5-
211217 T08 0.2+ 0.3- 211217 203 0.1+ 0.4- 211217 L01 0.0 0.6-
211217 T08 0.0 0.3- 211217 203 0.3+ 0.1+ 211217 595 0.1+ 0.3-
211217 T08 0.3- 0.0 211217 958 0.2+ 0.2- 211217 595 0.7+ 0.1+
211217 T08 0.3- 0.5- 211217 958 0.2+ 0.2- 211217 K38 (1.1- 1.1+)
211217 Q62 0.2+ 0.4- 211217 958 0.0 0.4- 211217 595 0.1+ 0.1+
211217 Q62 0.2+ 0.4+ 211217 204 0.2- 0.1- 211218 K38 (1.2+ 1.0-)
211217 Q62 0.4- 0.1- 211217 204 0.2- 0.0 211218 K38 0.1+ 0.2-
Ephemeris:
2021 YC a,e,i = 1.28, 0.22, 7 q = 0.9916
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2021 11 18 01 34 45.4 -55 11 20 0.07375 1.0059 101.5 74.4 22.8
...
2021 12 03 02 23 13.2 -53 29 59 0.03661 0.9923 99.1 78.8 21.4
...
2021 12 11 03 59 08.5 -43 02 01 0.01697 0.9912 111.9 67.2 19.3
...
2021 12 17 06 59 35.8 +12 46 33 0.0097670.9931 158.0 21.8 16.8
2021 12 18 07 34 15.0 +24 36 16 0.01072 0.9937 154.5 25.3 17.1
2021 12 19 08 06 36.3 +33 37 11 0.01222 0.9943 147.8 31.8 17.6
...
2021 12 25 10 11 42.3 +52 45 47 0.02579 0.9992 126.7 52.1 19.8
...
2022 01 02 11 09 12.3 +56 32 10 0.04649 1.0092 122.6 55.1 21.2
...
2022 01 17 11 26 25.6 +57 33 35 0.08603 1.0378 127.0 49.2 22.4
M. P. C. Staff (C) Copyright 2021 MPC M.P.E.C. 2021-Y34
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