[Iaude] MPEC X102: 2021 XA2 [a=1.33,e=0.16,i=30.4,H=24.0]
mpec at marsden.cfa.harvard.edu
mpec at marsden.cfa.harvard.edu
Sat Dec 4 10:06:14 EST 2021
M.P.E.C. 2021-X102 Issued 2021 December 4, 15:04 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 XA2
Observations:
K21X02A* C2021 12 02.19577902 45 31.81 +03 03 48.7 21.08GVEX102G96
K21X02A C2021 12 02.20143802 45 29.76 +03 04 49.8 21.94GVEX102G96
K21X02A C2021 12 02.20709702 45 27.62 +03 05 51.9 21.51GVEX102G96
K21X02A C2021 12 02.21275502 45 25.59 +03 06 53.1 21.58GVEX102G96
K21X02A KC2021 12 02.31190702 44 49.45 +03 24 45.2 21.54GVEX102V06
K21X02A KC2021 12 02.31406702 44 48.67 +03 25 08.2 21.31GVEX102V06
K21X02A KC2021 12 02.31622202 44 47.89 +03 25 31.3 21.46GVEX102V06
K21X02A KC2021 12 03.12087402 40 13.98 +05 49 50.7 21.8 VuEX102H21
K21X02A KC2021 12 03.12470202 40 12.62 +05 50 31.1 22.2 VuEX102H21
K21X02A KC2021 12 03.12878302 40 11.16 +05 51 15.1 22.2 VuEX102H21
K21X02A KC2021 12 04.10931702 34 40.32 +08 44 47.6 21.4 VuEX102H21
K21X02A KC2021 12 04.11291102 34 39.05 +08 45 25.5 21.1 VuEX102H21
K21X02A C2021 12 04.33598002 33 21.76 +09 24 27.0 20.7 GVEX102H01
K21X02A C2021 12 04.33925802 33 20.62 +09 25 01.2 20.9 GVEX102H01
K21X02A C2021 12 04.35056602 33 16.72 +09 26 58.9 21.1 GVEX102H01
K21X02A C2021 12 04.35644902 33 14.71 +09 28 00.2 20.7 GVEX102H01
Observer details:
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. 1.3-m f/4.0 astrograph + CCD.
V06 Catalina Sky Survey-Kuiper. 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. 1.55-m reflector + 1K CCD.
Orbital elements:
2021 XA2 Earth MOID = 0.1397 AU
Epoch 2022 Jan. 21.0 TT = JDT 2459600.5 Veres
M 37.48966 (2000.0) P Q
n 0.64160534 Peri. 348.88718 +0.50831367 -0.72008525
a 1.3313454 Node 68.90028 +0.82383621 +0.24686345
e 0.1566230 Incl. 30.41580 +0.25082087 +0.64848722
P 1.54 H 24.09 G 0.15 U 9
Residuals in seconds of arc
211202 G96 0.0 0.3- 211202 V06 0.2+ 0.2- 211204 H01 0.1+ 0.0
211202 G96 0.3+ 0.5- 211203 H21 0.3- 0.3+ 211204 H01 0.1- 0.1+
211202 G96 0.8- 0.5+ 211203 H21 0.2- 0.4- 211204 H01 0.1- 0.0
211202 G96 0.1- 0.4+ 211203 H21 0.1- 0.1- 211204 H01 0.0 0.0
211202 V06 0.1+ 0.3+ 211204 H21 0.3+ 0.0
211202 V06 0.1+ 0.0 211204 H21 0.2+ 0.0
Ephemeris:
2021 XA2 a,e,i = 1.33, 0.16, 30 q = 1.1228
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2021 11 04 05 06 44.0 -45 14 22 0.2951 1.1297 110.5 55.3 23.7
...
2021 11 19 04 02 37.2 -30 26 03 0.1950 1.1232 129.8 42.5 22.4
...
2021 11 27 03 16 16.9 -12 14 56 0.1631 1.1230 144.1 31.0 21.7
...
2021 12 03 02 40 54.9 +05 28 36 0.1604 1.1244 147.5 28.1 21.6
2021 12 04 02 35 16.5 +08 25 56 0.1620 1.1248 146.8 28.6 21.7
2021 12 05 02 29 45.0 +11 19 27 0.1642 1.1252 145.9 29.4 21.7
...
2021 12 11 01 59 39.9 +26 30 10 0.1877 1.1284 136.5 36.9 22.2
...
2021 12 19 01 29 18.5 +40 08 49 0.2383 1.1345 124.0 46.0 23.0
...
2022 01 03 01 01 22.8 +53 17 08 0.3567 1.1517 109.3 53.7 24.1
M. P. C. Staff (C) Copyright 2021 MPC M.P.E.C. 2021-X102
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