[Iaude] MPEC X55: 2021 XM [a=0.75,e=0.36,i=8.6,H=27.1]
mpec at marsden.cfa.harvard.edu
mpec at marsden.cfa.harvard.edu
Thu Dec 2 20:06:01 EST 2021
M.P.E.C. 2021-X55 Issued 2021 December 3, 01:04 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 XM
Observations:
K21X00M* C2021 12 01.19204223 32 15.93 +19 21 13.8 19.57GVEX055703
K21X00M C2021 12 01.20348223 32 22.88 +19 23 17.7 19.65GVEX055703
K21X00M C2021 12 01.20919123 32 26.39 +19 24 19.2 20.27GVEX055703
K21X00M KC2021 12 01.27377823 33 07.35 +19 35 31.7 19.55GVEX055I52
K21X00M KC2021 12 01.27465723 33 07.90 +19 35 40.7 20.61GVEX055I52
K21X00M KC2021 12 01.27554123 33 08.51 +19 35 49.4 19.73GVEX055I52
K21X00M 1C2021 12 01.82669 23 39 21.12 +21 00 00.7 21.0 VVEX055033
K21X00M 1C2021 12 01.82727 23 39 21.38 +21 00 04.8 20.3 VVEX055033
K21X00M 1C2021 12 01.82785 23 39 21.63 +21 00 09.0 20.2 VVEX055033
K21X00M mC2021 12 02.06517023 41 39.18 +21 31 48.9 20.97GVEX055I52
K21X00M mC2021 12 02.06554323 41 39.30 +21 31 51.5 21.27GVEX055I52
K21X00M mC2021 12 02.06742723 41 39.88 +21 32 04.3 21.29GVEX055I52
K21X00M mC2021 12 02.07138523 41 41.20 +21 32 33.1 22.01GVEX055I52
K21X00M KC2021 12 02.72519 23 46 15.95 +22 34 53.4 20.5 GVEX055204
K21X00M KC2021 12 02.73970 23 46 19.45 +22 36 08.3 VEX055204
K21X00M KC2021 12 03.00991023 47 52.01 +22 57 56.6 20.7 VuEX055H21
K21X00M KC2021 12 03.01830023 47 53.68 +22 58 34.5 20.7 VuEX055H21
Observer details:
033 Karl Schwarzschild Observatory, Tautenburg. Observers S. Melnikov, C.
Hoegner, U. Laux, F. Ludwig, B. Stecklum. Measurer B. Stecklum. 1.34-m
f/3 Schmidt + CCD.
204 Schiaparelli Observatory. Observer L. Buzzi. 0.84-m f/3.5 reflector +
CCD.
703 Catalina Sky Survey. Observer R. A. Kowalski. Measurers E. J.
Christensen, G. A. Farneth, D. C. Fuls, A. R. Gibbs, A. D. Grauer, H.
Groeller, R. A. Kowalski, S. M. Larson, G. J. Leonard, D. Rankin, R. L.
Seaman, F. C. Shelly, K. W. Wierzchos. 0.68-m Schmidt + 10K CCD.
H21 Astronomical Research Observatory, Westfield. Observer R. Holmes.
Measurers T. Linder, R. Holmes, L. Horn. 0.76-m f/3.0 astrograph + CCD.
I52 Steward Observatory, Mt. Lemmon Station. Observer D. Rankin. Measurers
E. J. Christensen, G. A. Farneth, D. C. Fuls, A. R. Gibbs, A. D. Grauer,
H. Groeller, R. A. Kowalski, S. M. Larson, G. J. Leonard, D. Rankin, R. L.
Seaman, F. C. Shelly, K. W. Wierzchos.
Orbital elements:
2021 XM Earth MOID = 0.0004 AU
Epoch 2022 Jan. 21.0 TT = JDT 2459600.5 Veres
M 222.48775 (2000.0) P Q
n 1.52425888 Peri. 199.87083 -0.07248063 +0.98802061
a 0.7477623 Node 66.17189 -0.89375242 -0.00371359
e 0.3625775 Incl. 8.56533 -0.44266598 -0.15427732
P 0.65 H 27.16 G 0.15 U 7
Residuals in seconds of arc
211201 703 0.0 1.0+ 211201 033 0.3- 0.3+ 211202 I52 0.9+ 0.4+
211201 703 0.0 0.0 211201 033 0.1- 0.0 211202 204 0.0 0.0
211201 703 0.3+ 0.3- 211201 033 0.0 0.2- 211202 204 0.1+ 0.2+
211201 I52 0.1+ 0.1- 211202 I52 0.2- 0.1- 211203 H21 0.4- 0.2-
211201 I52 0.2- 0.1+ 211202 I52 0.1- 0.1- 211203 H21 0.1+ 0.2-
211201 I52 0.1+ 0.1- 211202 I52 0.2- 0.6-
Ephemeris:
2021 XM a,e,i = 0.75, 0.36, 9 q = 0.4766
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2021 11 03 12 29 01.2 -28 35 55 0.1296 0.8843 31.6 144.0 29.9
...
2021 11 18 12 25 12.6 -30 21 52 0.05191 0.9517 43.7 134.1 26.8
...
2021 11 26 13 10 31.5 -38 01 12 0.01210 0.9780 41.5 138.0 24.1
...
2021 12 02 23 41 00.9 +21 25 37 0.01879 0.9935 113.1 65.9 20.8
2021 12 03 23 47 45.1 +22 58 54 0.02374 0.9958 114.0 64.7 21.3
2021 12 04 23 52 19.7 +23 59 39 0.02870 0.9979 114.4 64.1 21.7
...
2021 12 10 00 05 03.6 +26 29 53 0.05854 1.0085 112.3 64.6 23.3
...
2021 12 18 00 13 05.6 +27 39 15 0.09784 1.0169 107.0 67.7 24.5
...
2022 01 02 00 25 15.6 +28 52 26 0.1678 1.0148 96.0 74.5 25.9
M. P. C. Staff (C) Copyright 2021 MPC M.P.E.C. 2021-X55
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