[Iaude] MPEC X182: 2021 XY4 [a=1.85,e=0.60,i=7.8,H=23.5]
mpec at marsden.cfa.harvard.edu
mpec at marsden.cfa.harvard.edu
Fri Dec 10 08:46:27 EST 2021
M.P.E.C. 2021-X182 Issued 2021 December 10, 13:45 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 XY4
Observations:
K21X04Y* C2021 12 09.28148700 54 39.09 +29 29 46.8 17.08oVEX182T08
K21X04Y C2021 12 09.28707400 55 04.37 +29 32 56.3 17.23oVEX182T08
K21X04Y C2021 12 09.29043400 55 19.59 +29 34 49.9 17.19oVEX182T08
K21X04Y C2021 12 09.30458100 56 23.48 +29 42 44.2 17.17oVEX182T08
K21X04Y C2021 12 09.42057 01 05 28.47 +30 43 20.1 17.4 RrEX182P93
K21X04Y C2021 12 09.42247 01 05 36.73 +30 44 18.7 17.4 RrEX182P93
K21X04Y C2021 12 09.42532 01 05 49.16 +30 45 46.3 17.7 RrEX182P93
K21X04Y C2021 12 09.60054801 18 14.62 +32 08 10.9 17.4 GVEX182900
K21X04Y C2021 12 09.60318201 18 25.60 +32 09 18.9 17.6 GVEX182900
K21X04Y C2021 12 09.60581601 18 36.60 +32 10 26.4 17.0 GVEX182900
K21X04Y C2021 12 09.60845001 18 47.60 +32 11 34.0 17.6 GVEX182900
K21X04Y KC2021 12 09.77141201 30 25.59 +33 18 31.6 17.3 GZEX182C95
K21X04Y KC2021 12 09.77746501 30 49.22 +33 20 52.1 17.0 GZEX182C95
K21X04Y KC2021 12 09.78353601 31 12.87 +33 23 11.6 16.1 GZEX182C95
K21X04Y KC2021 12 09.78961201 31 36.47 +33 25 31.1 16.9 GZEX182C95
K21X04Y KC2021 12 09.79566601 31 59.94 +33 27 49.0 16.9 GZEX182C95
K21X04Y KC2021 12 09.85876001 36 00.51 +33 50 41.8 16.6 GVEX182L06
K21X04Y KC2021 12 09.85971901 36 04.13 +33 51 02.0 17.3 GVEX182L06
K21X04Y KC2021 12 09.86078401 36 08.17 +33 51 24.7 17.4 GVEX182L06
K21X04Y KC2021 12 09.86142201 36 10.59 +33 51 38.1 17.2 GVEX182L06
K21X04Y KC2021 12 09.87699701 37 09.53 +33 57 05.1 17.3 GVEX182204
K21X04Y KC2021 12 09.87957201 37 19.22 +33 57 58.5 VEX182204
K21X04Y KC2021 12 09.88104 01 37 23.82 +33 58 38.9 17.5 GVEX182L39
K21X04Y KC2021 12 09.88214701 37 28.93 +33 58 51.8 VEX182204
K21X04Y KC2021 12 09.88272 01 37 30.18 +33 59 11.8 18.0 GVEX182L39
K21X04Y KC2021 12 09.88440 01 37 36.54 +33 59 47.8 17.0 GVEX182L39
K21X04Y KC2021 12 09.88478701 37 38.86 +33 59 46.4 VEX182204
K21X04Y KC2021 12 09.88608 01 37 42.77 +34 00 22.2 17.4 GVEX182L39
K21X04Y KC2021 12 09.88737201 37 48.58 +34 00 39.4 VEX182204
K21X04Y KC2021 12 10.01683101 46 12.87 +34 43 37.3 17.6 VuEX182H21
K21X04Y KC2021 12 10.01824001 46 17.91 +34 44 04.1 17.5 VuEX182H21
K21X04Y KC2021 12 10.01964901 46 22.94 +34 44 30.8 17.4 VuEX182H21
K21X04Y KC2021 12 10.02105801 46 27.97 +34 44 57.6 17.5 VuEX182H21
K21X04Y KC2021 12 10.02246701 46 32.99 +34 45 24.2 17.5 VuEX182H21
K21X04Y C2021 12 10.54164702 15 08.31 +36 54 42.3 17.8 GVEX182900
K21X04Y C2021 12 10.54468502 15 17.14 +36 55 17.0 17.5 GVEX182900
K21X04Y C2021 12 10.54772202 15 25.91 +36 55 51.8 17.5 GVEX182900
Observer details:
204 Schiaparelli Observatory. Observer L. Buzzi. 0.84-m f/3.5 reflector +
CCD.
900 Moriyama. Observer Y. Ikari. 0.26-m f/7.0 reflector + CCD.
C95 SATINO Remote Observatory, Haute Provence. Observer J. Jahn. 0.60-m
f/3.2 Newtonian reflector + CCD.
H21 Astronomical Research Observatory, Westfield. Observer R. Holmes.
Measurers T. Linder, R. Holmes, L. Horn. 0.76-m f/3.0 astrograph + CCD.
L06 Sormano 2 Observatory, Bellagio Via Lattea. Observers E. Valli, G.
Ventre. Measurer P. Sicoli. 0.36-m Schmidt-Cassegrain + CCD.
L39 Osservatorio Spica, Signa. Observer M. Bertini. 0.30-m Newtonian
reflector + CCD.
P93 Space Tracking and Communications Center, JAXA. Observers S. Urakawa, T.
Fujiwara. 1.0-m f/3.0 reflector + CCD.
T08 ATLAS-MLO, Mauna Loa. Observers L. Denneau, J. Tonry, H. Weiland.
Measurers L. Denneau, J. Tonry, H. Weiland, A. Fitzsimmons, J. Robinson,
N. Erasmus. 0.5-m reflector + CCD.
Orbital elements:
2021 XY4 Earth MOID = 0.0045 AU
Epoch 2022 Jan. 21.0 TT = JDT 2459600.5 Veres
M 34.59619 (2000.0) P Q
n 0.39271340 Peri. 292.58259 +0.98801230 -0.08433684
a 1.8467959 Node 72.44983 +0.13264903 +0.89224849
e 0.5958246 Incl. 7.79415 -0.07896789 +0.44359883
P 2.51 H 23.58 G 0.15 U 8
Residuals in seconds of arc
211209 T08 0.1+ 0.1+ 211209 C95 0.4+ 0.6- 211209 204 0.2- 0.1-
211209 T08 0.2- 0.0 211209 C95 0.2+ 0.3- 211209 L39 0.5- 0.0
211209 T08 0.2+ 0.1+ 211209 C95 0.1+ 0.3- 211209 204 0.1- 0.3-
211209 T08 0.4+ 0.3+ 211209 L06 0.6+ 0.1- 211210 H21 0.4+ 0.1-
211209 P93 0.1+ 0.3- 211209 L06 0.4+ 0.2- 211210 H21 0.5+ 0.1-
211209 P93 0.4- 0.3- 211209 L06 0.4+ 0.0 211210 H21 0.4+ 0.2-
211209 P93 0.6- 0.6- 211209 L06 0.5+ 0.1- 211210 H21 0.5+ 0.1-
211209 900 1.0+ 0.6+ 211209 204 0.2- 0.2- 211210 H21 0.4+ 0.2-
211209 900 0.8+ 0.6+ 211209 204 0.5- 0.3- 211210 900 0.2- 0.1+
211209 900 0.9+ 0.3+ 211209 L39 0.5- 0.4+ 211210 900 0.2+ 0.0
211209 900 0.6+ 0.1+ 211209 204 0.2- 0.2- 211210 900 0.1- 0.1+
211209 C95 0.5+ 0.1- 211209 L39 (0.4- 1.5-)
211209 C95 0.4+ 0.0 211209 L39 0.5+ 0.1+
Ephemeris:
2021 XY4 a,e,i = 1.85, 0.60, 8 q = 0.7464
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2021 11 10 17 30 01.2 -36 19 42 0.2868 0.7855 38.3 128.7 25.9
...
2021 11 25 18 05 52.0 -36 17 10 0.1285 0.8797 31.1 144.6 26.3
...
2021 12 03 19 08 03.2 -31 13 06 0.05164 0.9440 34.9 143.3 24.3
...
2021 12 09 00 31 51.5 +26 30 05 0.02224 0.9960 119.1 59.8 17.5
2021 12 10 01 44 58.1 +34 38 49 0.02821 1.0049 134.6 44.2 17.5
2021 12 11 02 36 12.8 +38 08 03 0.03587 1.0138 143.6 35.2 17.8
...
2021 12 17 04 23 21.6 +40 18 36 0.09112 1.0685 156.9 21.2 19.6
...
2021 12 25 04 54 59.5 +39 26 40 0.1711 1.1429 156.9 19.7 21.0
...
2022 01 09 05 16 48.2 +37 55 17 0.3356 1.2835 149.3 23.0 22.8
M. P. C. Staff (C) Copyright 2021 MPC M.P.E.C. 2021-X182
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