MPEC 2019-A99 : 2014 XD8
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M.P.E.C. 2019-A99 Issued 2019 Jan. 7, 00:30 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@CFA.HARVARD.EDU
URL https://www.minorplanetcenter.net/ ISSN 1523-6714
2014 XD8
Revision to MPEC 2014-Y05
Additional Observations:
K14X08D KC2019 01 04.40683910 41 52.03 +26 18 34.2 22.2 VuEA099H21
K14X08D KC2019 01 04.41799310 41 51.49 +26 18 37.1 22.1 VuEA099H21
K14X08D KC2019 01 04.43468210 41 50.73 +26 18 41.5 22.4 VuEA099H21
K14X08D KC2019 01 06.38201010 40 14.20 +26 27 07.9 22.3 VuEA099H21
K14X08D KC2019 01 06.38910910 40 13.80 +26 27 10.3 22.3 VuEA099H21
K14X08D KC2019 01 06.39742210 40 13.35 +26 27 12.7 22.6 VuEA099H21
Observer details:
H21 Astronomical Research Observatory, Westfield. Observer R. Holmes.
Measurers S. Foglia, L. Buzzi, T. Linder, R. Holmes. 1.3-m f/4.0
astrograph + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc, reference and Delta-T
190104 H21 25.5+ 32.3- 190106 H21 26.8+ 31.9- MPO438010 -0.033 day
Orbital elements:
2014 XD8 Earth MOID = 0.1099 AU
Epoch 2019 Apr. 27.0 TT = JDT 2458600.5 MPC
M 74.88581 (2000.0) P Q
n 0.25846239 Peri. 26.60190 +0.94722799 -0.31799003
a 2.4408316 Node 351.62902 +0.22140437 +0.74038287
e 0.5553647 Incl. 16.15863 +0.23181725 +0.59221241
P 3.81 H 18.9 G 0.15 U 2
Residuals in seconds of arc
141213 F51 0.1- 0.1- 141219 291 0.2+ 0.2+ 150110 H21 0.2+ 0.1-
141213 F51 0.1- 0.1- 141226 H21 0.3- 0.2+ 150110 H21 0.1- 0.3-
141213 F51 0.1+ 0.1- 141226 H21 0.2- 0.1+ 150110 H21 0.1+ 0.1-
141213 F51 0.1- 0.1+ 141226 H21 0.1- 0.5+ 150111 F51 0.0 0.0
141213 F51 0.1+ 0.0 141226 H21 0.1+ 0.1+ 150111 F51 0.1+ 0.1-
141213 F51 0.0 0.1- 141226 H21 0.1+ 0.2- 150111 F51 0.2- 0.2-
141214 568 0.0 0.1- 141227 703 0.6+ 1.2+ 150209 291 0.3+ 0.6-
141214 568 0.1- 0.1- 141227 703 0.4+ 0.1+ 150209 291 0.1+ 0.1+
141214 568 0.0 0.1- 141227 703 0.5+ 1.0- 150209 291 0.9- 1.0+
141215 291 0.2- 0.0 141229 F51 0.0 0.2- 150217 H21 0.5+ 0.9+
141215 291 0.3+ 0.3+ 141229 F51 0.0 0.2- 150217 H21 0.4+ 0.2-
141215 291 0.1- 0.3+ 141229 F51 0.1+ 0.2- 150217 H21 1.1+ 0.9-
141217 461 0.4- 0.5+ 141230 705 0.0 0.1- 190104 H21 0.5- 0.2-
141217 461 0.0 0.4+ 141230 705 0.1+ 0.2- 190104 H21 0.3- 0.1-
141219 204 0.2- 0.1+ 141230 705 0.0 0.2- 190104 H21 0.5+ 0.1+
141219 204 0.3- 0.0 150105 448 (1.5- 0.5-) 190106 H21 0.2+ 0.4-
141219 204 0.0 0.2+ 150105 448 0.3- 0.0 190106 H21 0.0 0.2+
141219 291 0.0 0.1- 150105 448 0.0 0.2- 190106 H21 0.1+ 0.4+
Ephemeris:
2014 XD8 a,e,i = 2.44, 0.56, 16 q = 1.0853
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2018 12 08 10 46 49.3 +25 15 55 1.4819 1.9386 101.7 29.8 22.5
...
2018 12 23 10 48 08.9 +25 34 50 1.4117 2.0447 116.1 25.6 22.4
...
2018 12 31 10 44 53.3 +26 00 47 1.3799 2.1001 124.6 22.7 22.3
...
2019 01 06 10 40 34.0 +26 25 29 1.3608 2.1411 131.3 20.2 22.2
2019 01 07 10 39 41.5 +26 29 53 1.3582 2.1479 132.4 19.8 22.2
2019 01 08 10 38 46.5 +26 34 22 1.3557 2.1547 133.6 19.3 22.2
...
2019 01 14 10 32 24.4 +27 01 51 1.3446 2.1951 140.6 16.5 22.1
...
2019 01 22 10 21 52.5 +27 37 03 1.3417 2.2481 149.9 12.7 22.0
...
2019 02 06 09 58 11.1 +28 20 34 1.3808 2.3450 164.2 6.6 21.9
A. U. Tomatic (C) Copyright 2019 MPC M.P.E.C. 2019-A99
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