[Iaude] MPEC X106: 2021 XE2 [a=1.46,e=0.38,i=1.2,H=27.8]
mpec at marsden.cfa.harvard.edu
mpec at marsden.cfa.harvard.edu
Sat Dec 4 10:09:24 EST 2021
M.P.E.C. 2021-X106 Issued 2021 December 4, 15:08 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 XE2
Observations:
K21X02E* C2021 12 03.26707703 35 34.09 +01 16 29.5 20.47GVEX106G96
K21X02E C2021 12 03.27226903 35 42.26 +01 17 43.8 21.52GVEX106G96
K21X02E C2021 12 03.27748203 35 50.54 +01 18 58.2 20.55GVEX106G96
K21X02E C2021 12 03.28268203 35 58.79 +01 20 12.4 20.56GVEX106G96
K21X02E KC2021 12 03.37141203 38 17.64 +01 40 55.3 20.57GVEX106I52
K21X02E KC2021 12 03.37367603 38 21.19 +01 41 25.8 20.98GVEX106I52
K21X02E KC2021 12 03.37593803 38 24.70 +01 41 56.8 20.50GVEX106I52
K21X02E KC2021 12 04.11711903 56 52.62 +04 11 12.9 20.9 VuEX106H21
K21X02E KC2021 12 04.12271203 56 59.28 +04 12 13.0 20.8 VuEX106H21
K21X02E KC2021 12 04.12550803 57 02.63 +04 12 42.8 20.7 VuEX106H21
K21X02E KC2021 12 04.20547403 58 41.64 +04 27 02.5 20.9 GXEX106858
K21X02E KC2021 12 04.21401403 58 51.42 +04 28 31.1 20.9 GXEX106858
K21X02E KC2021 12 04.22091903 58 59.29 +04 29 42.1 20.2 GXEX106858
K21X02E C2021 12 04.39830604 02 16.82 +04 59 08.6 20.3 GVEX106H01
K21X02E C2021 12 04.40152204 02 20.37 +04 59 39.2 20.9 GVEX106H01
K21X02E C2021 12 04.41225504 02 32.30 +05 01 21.4 20.8 GVEX106H01
K21X02E C2021 12 04.41931304 02 40.14 +05 02 28.6 20.5 GVEX106H01
Observer details:
858 Tebbutt Observatory, Edgewood. Observer F. B. Zoltowski. 0.51-m Schmidt-
Cassegrain + CCD.
G96 Mt. Lemmon Survey. Observer A. R. Gibbs. 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. 1.5-m reflector + 10K CCD.
H01 Magdalena Ridge Observatory, Socorro. Observers W. H. Ryan, E. V. Ryan.
Measurer W. H. Ryan. 2.4-m f/8.9 Ritchey-Chretien + 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 XE2 Earth MOID = 0.0048 AU
Epoch 2022 Jan. 21.0 TT = JDT 2459600.5 Veres
M 49.79705 (2000.0) P Q
n 0.55633537 Peri. 147.08280 +0.94290405 -0.33262166
a 1.4641254 Node 232.35467 +0.30070214 +0.87232039
e 0.3837969 Incl. 1.24249 +0.14321376 +0.35835732
P 1.77 H 27.89 G 0.15 U 7
Residuals in seconds of arc
211203 G96 0.0 0.2- 211203 I52 0.0 0.2- 211204 858 0.2+ 0.1-
211203 G96 0.7- 0.1- 211204 H21 0.1+ 0.5- 211204 H01 0.0 0.1+
211203 G96 0.3- 0.1- 211204 H21 0.1- 0.1- 211204 H01 0.2- 0.1+
211203 G96 0.5+ 0.1- 211204 H21 0.1+ 0.1- 211204 H01 0.1+ 0.0
211203 I52 0.1- 0.6+ 211204 858 0.1- 0.1- 211204 H01 0.0 0.1+
211203 I52 0.3+ 0.0 211204 858 0.1+ 0.1+
Ephemeris:
2021 XE2 a,e,i = 1.46, 0.38, 1 q = 0.9022
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2021 11 04 18 06 43.5 -20 48 56 0.1360 0.9107 50.1 123.3 28.5
...
2021 11 19 18 51 05.5 -23 23 34 0.05754 0.9486 45.1 132.4 27.5
...
2021 11 27 21 04 38.9 -28 44 42 0.02028 0.9788 66.1 112.8 23.7
...
2021 12 03 03 27 32.1 +00 12 57 0.02153 1.0050 152.4 27.0 20.8
2021 12 04 03 54 08.3 +03 53 14 0.02566 1.0096 158.5 21.0 21.0
2021 12 05 04 13 17.2 +06 29 31 0.03013 1.0143 162.4 17.1 21.2
...
2021 12 11 05 04 32.0 +13 10 02 0.05988 1.0438 170.1 9.4 22.5
...
2021 12 19 05 25 28.5 +15 51 39 0.1032 1.0859 170.9 8.2 23.7
...
2022 01 03 05 40 12.3 +17 54 18 0.1954 1.1709 162.2 14.9 25.5
M. P. C. Staff (C) Copyright 2021 MPC M.P.E.C. 2021-X106
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