[Iaude] MPEC X25: 2002 XW4 [a=2.43,e=0.50,i=7.0,H=21.8]
mpec at marsden.cfa.harvard.edu
mpec at marsden.cfa.harvard.edu
Wed Dec 1 10:45:41 EST 2021
M.P.E.C. 2021-X25 Issued 2021 December 1, 15:44 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
2002 XW4
Revision to MPEC 2002-X38
Additional Observations:
K02X04W C2021 11 28.48328507 14 22.91 +22 30 19.0 20.30GVEX025G96
K02X04W C2021 11 28.48845807 14 23.10 +22 30 25.1 20.58GVEX025G96
K02X04W C2021 11 28.49449907 14 23.31 +22 30 33.0 20.44GVEX025G96
K02X04W C2021 11 28.50054807 14 23.51 +22 30 40.6 21.31GVEX025G96
K02X04W HC2021 11 28.53646007 14 24.67 +22 31 24.5 20.85GVEX025G96
K02X04W HC2021 11 28.54037507 14 24.80 +22 31 29.0 20.89GVEX025G96
K02X04W HC2021 11 28.54390507 14 24.88 +22 31 32.9 VEX025G96
K02X04W mC2021 11 29.30712607 14 56.54 +22 47 38.5 21.44GVEX025I52
K02X04W KC2021 11 29.30743807 14 55.99 +22 47 37.2 20.9 VuEX025H21
K02X04W KC2021 11 29.31527707 14 56.21 +22 47 47.5 20.9 VuEX025H21
K02X04W mC2021 11 29.31548207 14 56.86 +22 47 49.6 21.07GVEX025I52
K02X04W mC2021 11 29.31904707 14 56.92 +22 47 53.6 22.17GVEX025I52
K02X04W KC2021 11 30.29804307 15 31.04 +23 08 31.0 VEX025I52
K02X04W KC2021 11 30.30185107 15 31.18 +23 08 35.8 21.21GVEX025I52
K02X04W KC2021 11 30.30591507 15 31.28 +23 08 41.0 21.16GVEX025I52
K02X04W mC2021 12 01.40606707 16 03.42 +23 31 53.3 20.61GVEX025I52
K02X04W mC2021 12 01.42779607 16 03.82 +23 32 21.0 20.83GVEX025I52
K02X04W mC2021 12 01.43484107 16 03.91 +23 32 30.2 20.70GVEX025I52
Observer details:
G96 Mt. Lemmon Survey. Observer G. J. Leonard. 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.
H21 Astronomical Research Observatory, Westfield. Observer R. Holmes.
Measurers T. Linder, R. Holmes, L. Horn. 0.81-m f/4.0 astrograph + CCD.
I52 Steward Observatory, Mt. Lemmon Station. Observers K. W. Wierzchos, 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.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or zero decimals in degrees), reference and Delta-T
211128 G96 46- 7- 211201 I52 46- 8- MPO 74242 -56.5 days
Orbital elements:
2002 XW4 Earth MOID = 0.2290 AU
Epoch 2022 Jan. 21.0 TT = JDT 2459600.5 Veres
M 22.91357 (2000.0) P Q
n 0.25944943 Peri. 329.74974 +0.69268138 -0.71150278
a 2.4346371 Node 76.11808 +0.68371924 +0.59562965
e 0.5031910 Incl. 6.98971 +0.22960947 +0.37281245
P 3.80 H 21.80 G 0.15 U 1
Residuals in seconds of arc
021128 608 0.5- 0.2- 021206 704 0.5- 0.9- 211128 G96 0.1+ 0.4+
021128 608 0.1- 0.1- 021206 704 0.6+ 0.1- 211128 G96 0.2+ 0.5+
021128 608 0.2+ 0.1- 021206 704 0.1- 0.6- 211128 G96 0.0 0.1+
021128 608 0.1- 0.5- 021206 704 0.2+ 0.8- 211128 G96 0.0 0.2-
021128 608 0.1- 0.1- 021210 649 0.2+ 0.1- 211128 G96 0.5- 0.7-
021128 608 0.1+ 0.0 021210 649 0.2+ 0.1- 211129 I52 0.4- 0.2+
021205 704 1.0+ 0.3+ 021210 649 0.2+ 0.1- 211129 H21 0.2- 0.3-
021205 704 1.7+ 0.5+ 021212 246 0.4- 0.2+ 211129 H21 0.2- 0.0
021205 704 1.1+ 0.2- 021212 246 1.5- 1.5+ 211129 I52 0.6+ 0.4+
021205 704 0.2- 0.1- 021212 246 1.6- 1.1+ 211129 I52 0.0 0.2-
021205 704 0.2+ 0.0 021212 246 1.3- 0.9+ 211130 I52 0.4- 0.1+
021206 858 1.1- 0.0 021212 246 1.1- 0.4+ 211130 I52 0.1+ 0.0
021206 858 1.3+ 0.3- 021212 246 1.6- 0.2+ 211130 I52 0.1+ 0.1-
021206 858 (1.7+ 0.7+) 021228 696 0.4- 0.6- 211201 I52 0.2+ 0.3-
021206 926 0.2- 0.5- 021228 696 0.5+ 0.2+ 211201 I52 0.3+ 0.1-
021206 926 0.2- 0.7+ 211128 G96 0.6- 0.3+ 211201 I52 0.0 0.2+
021206 926 0.3+ 0.8+ 211128 G96 0.3- 0.0
Ephemeris:
2002 XW4 a,e,i = 2.43, 0.50, 7 q = 1.2095
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2021 11 01 06 28 33.5 +13 37 10 0.3525 1.2122 121.0 44.6 21.7
...
2021 11 16 07 00 04.4 +18 13 56 0.3431 1.2344 129.1 38.4 21.5
...
2021 11 24 07 10 35.2 +20 56 30 0.3440 1.2549 135.1 33.7 21.4
...
2021 11 30 07 15 20.1 +23 02 19 0.3478 1.2738 140.4 29.6 21.3
2021 12 01 07 15 51.7 +23 23 23 0.3488 1.2772 141.3 28.8 21.3
2021 12 02 07 16 18.9 +23 44 26 0.3498 1.2807 142.3 28.1 21.3
...
2021 12 08 07 17 31.7 +25 49 15 0.3581 1.3033 148.2 23.5 21.3
...
2021 12 16 07 15 38.2 +28 25 25 0.3757 1.3372 156.5 17.0 21.2
...
2021 12 31 07 05 27.3 +32 12 10 0.4324 1.4106 169.3 7.4 21.3
A. U. Tomatic (C) Copyright 2021 MPC M.P.E.C. 2021-X25
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