MPEC 2014-M29 : 2007 WX4
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M.P.E.C. 2014-M29 Issued 2014 June 25, 03:02 UT
The Minor Planet Electronic Circulars contain information on unusual
minor planets and routine data on comets. They are published
on behalf of Commission 20 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@CFA.HARVARD.EDU
URL https://www.minorplanetcenter.net/ ISSN 1523-6714
2007 WX4
Revision to MPEC 2007-W48
Additional Observations:
K07W04X C2014 06 22.23209 17 02 12.01 -06 55 22.0 20.5 VqEM029G96
K07W04X C2014 06 22.24083 17 02 11.03 -06 55 00.3 20.2 VqEM029G96
K07W04X C2014 06 22.24957 17 02 10.09 -06 54 38.2 20.3 VqEM029G96
K07W04X C2014 06 22.25832 17 02 09.16 -06 54 15.9 20.5 VqEM029G96
K07W04X KC2014 06 22.55522 17 01 38.28 -06 41 27.9 20.4 RtEM029474
K07W04X KC2014 06 22.55875 17 01 37.93 -06 41 18.8 20.7 RtEM029474
K07W04X KC2014 06 22.56522 17 01 37.26 -06 41 02.5 20.7 RtEM029474
K07W04X C2014 06 23.22564 17 00 30.37 -06 13 40.0 21.1 VqEM029I52
K07W04X C2014 06 23.22640 17 00 30.26 -06 13 38.1 21.8 VqEM029I52
K07W04X C2014 06 23.22716 17 00 30.21 -06 13 36.3 21.4 VqEM029I52
K07W04X C2014 06 23.22792 17 00 30.17 -06 13 34.1 21.3 VqEM029I52
K07W04X KC2014 06 24.28086 16 58 43.74 -05 29 42.3 20.4 RoEM029291
K07W04X KC2014 06 24.28236 16 58 43.51 -05 29 38.1 21.2 RoEM029291
Observer details:
291 LPL/Spacewatch II. Observer R. A. Mastaler. 1.8-m f/2.7 reflector + CCD.
474 Mount John Observatory, Lake Tekapo. Observers A. C. Gilmore,
P. M. Kilmartin. Measurer P. M. Kilmartin. 1.0-m f/7.7 reflector + CCD.
G96 Mt. Lemmon Survey. Observer R. A. Kowalski. Measurers E. J. Christensen,
A. R. Gibbs, A. D. Grauer, R. E. Hill, J. A. Johnson, R. A. Kowalski,
S. M. Larson, R. J. Sanders, F. C. Shelly. 1.5-m reflector + CCD.
I52 Steward Observatory, Mt. Lemmon Station. Observer A. R. Gibbs. Measurers
E. J. Christensen, A. R. Gibbs, A. D. Grauer, R. E. Hill, J. A. Johnson,
R. A. Kowalski, S. M. Larson, R. J. Sanders, F. C. Shelly. 1.0-m
reflector + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
140622 G96 9.19- 5.09- 140624 291 9.16- 5.23- MPO130342 +7.4 day
Orbital elements:
2007 WX4 Earth MOID = 0.4733 AU
Epoch 2014 May 23.0 TT = JDT 2456800.5 MPC
M 297.33312 (2000.0) P Q
n 0.41601132 Peri. 95.20056 +0.86984617 +0.19023624
a 1.7771849 Node 254.43699 -0.32311419 +0.91690570
e 0.3025436 Incl. 28.19614 +0.37277991 +0.35084770
P 2.37 H 20.1 G 0.15 U 4
Residuals in seconds of arc
071120 G96 0.7- 0.1- 071121 G96 0.3- 0.2- 140622 G96 0.1- 0.1+
071120 G96 0.1- 0.2+ 071121 G96 0.4+ 0.2- 140622 G96 0.2+ 0.3+
071120 G96 0.0 0.2- 071121 G96 0.4+ 0.2+ 140622 474 0.1- 0.3-
071120 G96 0.1- 0.3+ 071121 G96 0.2- 0.0 140622 474 0.3+ 0.1-
071120 G96 0.3+ 0.8- 071128 H55 0.4- 0.0 140622 474 0.6+ 0.1-
071120 G96 0.1+ 0.2- 071128 H55 0.4- 0.1+ 140623 I52 0.3- 0.0
071120 G96 0.3+ 0.4+ 071128 H55 0.3- 0.7- 140623 I52 0.7- 0.0
071120 G96 0.2- 0.2- 071129 J95 0.2+ 0.0 140623 I52 0.2- 0.1-
071121 G96 0.0 0.2+ 071129 J95 1.0+ 0.7- 140623 I52 0.4+ 0.2+
071121 G96 0.5- 0.2+ 071129 J95 1.0- 0.9+ 140624 291 0.5+ 0.4-
071121 G96 0.2+ 0.1+ 140622 G96 0.3+ 0.5+ 140624 291 0.6- 0.1+
071121 G96 0.6+ 0.2- 140622 G96 0.2- 0.1+
Ephemeris:
2007 WX4 a,e,i = 1.78, 0.30, 28 q = 1.2395
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2014 05 26 17 46 41.9 -24 33 25 0.6876 1.6691 157.5 13.4 21.2
...
2014 06 10 17 23 49.3 -15 31 00 0.5963 1.6077 172.0 5.0 20.4
...
2014 06 18 17 09 36.5 -09 54 57 0.5731 1.5750 164.1 10.2 20.5
...
2014 06 24 16 59 12.0 -05 41 14 0.5675 1.5506 155.4 15.8 20.7
2014 06 25 16 57 32.4 -04 59 50 0.5675 1.5465 154.0 16.8 20.7
2014 06 26 16 55 54.5 -04 18 51 0.5677 1.5425 152.5 17.7 20.7
...
2014 07 02 16 46 52.2 -00 23 52 0.5740 1.5183 143.8 23.3 20.9
...
2014 07 10 16 37 20.7 +04 10 50 0.5934 1.4866 133.1 30.0 21.1
...
2014 07 25 16 28 41.4 +10 29 42 0.6509 1.4292 116.4 39.6 21.5
A. U. Tomatic (C) Copyright 2014 MPC M.P.E.C. 2014-M29
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