[Iaude] MPEC F149: 2017 XA2 [a=1.41,e=0.49,i=26.5,H=19.9]
mpec at mpcdb1.cfa.harvard.edu
mpec at mpcdb1.cfa.harvard.edu
Thu Mar 29 06:37:16 EDT 2018
M.P.E.C. 2018-F149 Issued 2018 Mar. 29, 10:34 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
2017 XA2
Revision to MPEC 2017-X109
Additional Observations:
K17X02A C2014 12 29.56604 08 46 37.912+32 46 15.71 22.6 GUEF149F51
K17X02A C2014 12 29.57785 08 46 36.848+32 46 30.24 22.4 GUEF149F51
K17X02A C2014 12 29.58963 08 46 35.810+32 46 44.94 21.7 GUEF149F51
K17X02A C2014 12 29.60145 08 46 34.762+32 46 59.36 22.4 GUEF149F51
K17X02A C2015 01 11.52065 08 23 46.981+37 09 22.08 20.6 GUEF149F51
K17X02A C2015 01 11.53267 08 23 45.462+37 09 36.17 21.8 GUEF149F51
K17X02A C2015 01 11.54471 08 23 43.981+37 09 49.93 22.9 GUEF149F51
K17X02A C2015 01 13.50600 08 19 36.471+37 47 02.36 22.4 GUEF149F51
K17X02A C2015 01 13.51819 08 19 34.821+37 47 15.74 22.4 GUEF149F51
K17X02A C2017 03 11.46708 13 22 07.897+59 39 01.88 20.4 GUEF149F51
K17X02A C2017 03 11.48148 13 22 06.834+59 39 30.69 22.0 GUEF149F51
K17X02A C2017 03 11.49587 13 22 05.822+59 39 59.24 21.5 GUEF149F51
K17X02A C2017 03 11.51025 13 22 04.832+59 40 27.88 21.3 GUEF149F51
K17X02A C2017 04 03.40710 12 26 38.733+69 20 59.18 21.6 GUEF149F51
K17X02A C2017 04 03.42009 12 26 35.538+69 21 11.07 20.8 GUEF149F51
K17X02A C2017 04 03.43305 12 26 32.354+69 21 22.51 21.2 GUEF149F51
K17X02A C2017 04 03.44603 12 26 29.189+69 21 34.28 21.2 GUEF149F51
K17X02A C2017 04 27.26178 10 49 41.645+70 26 10.26 21.1 GUEF149F51
K17X02A C2017 04 27.29876 10 49 33.367+70 25 52.28 21.1 GUEF149F51
Observer details:
F51 Pan-STARRS 1, Haleakala. Observers B. Gibson, T. Goggia, S. Kahale,
T. Lowe, A. Schultz, M. Willman. Measurers R. Weryk, C. Waters,
R. Wainscoat. 1.8-m Ritchey-Chretien + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
141229 F51 0.14+ 0.04+ 170427 F51 0.01+ 0.04+ MPO431256 -0.017 day
Orbital elements:
2017 XA2 Earth MOID = 0.2682 AU
Epoch 2018 Mar. 23.0 TT = JDT 2458200.5 MPC
M 150.80695 (2000.0) P Q
n 0.58891115 Peri. 199.82453 +0.39982768 +0.80230819
a 1.4096226 Node 95.97168 -0.76932783 +0.55661021
e 0.4875633 Incl. 26.46385 -0.49826952 -0.21560761
P 1.67 H 19.9 G 0.15 U 1
Residuals in seconds of arc
141229 F51 0.2+ 0.2- 171209 807 0.2+ 0.2- 171213 926 0.7- 0.2-
141229 F51 0.0 0.2- 171209 807 0.2+ 0.1+ 171213 926 0.7+ 0.5+
141229 F51 0.1+ 0.1+ 171209 I52 0.1- 0.2+ 171213 926 0.2- 0.2-
141229 F51 0.1+ 0.0 171209 I52 0.5- 0.4- 171213 691 0.0 0.1+
150111 F51 0.6- 0.4- 171209 I52 0.1- 0.2+ 171213 691 0.0 0.4+
150111 F51 0.4- 0.1- 171209 I52 0.3- 0.9- 171213 691 0.4- 0.1-
150111 F51 0.3+ 0.1- 171209 926 0.2- 0.0 171214 I52 0.2+ 0.2-
150113 F51 0.5+ 0.1+ 171209 926 0.0 0.7- 171214 I52 0.1- 0.1+
150113 F51 0.0 0.1- 171209 568 0.1+ 0.0 171214 926 0.6- 0.1+
170311 F51 0.5+ 0.2+ 171209 568 0.1+ 0.0 171214 926 0.1- 0.4-
170311 F51 0.0 0.2+ 171209 568 0.1+ 0.0 171214 926 0.1- 0.1-
170311 F51 0.0 0.1+ 171209 H01 0.2+ 0.1+ 171216 691 0.6- 0.1+
170311 F51 0.1+ 0.1+ 171209 H01 0.1+ 0.0 171216 691 0.3- 0.2-
170403 F51 0.1+ 0.0 171209 H01 0.1+ 0.1- 171223 V06 0.0 0.6-
170403 F51 0.1- 0.1+ 171209 H01 0.1+ 0.0 171223 V06 0.1+ 0.1+
170403 F51 0.2- 0.1- 171210 807 0.2- 0.9- 171223 V06 0.2+ 0.0
170403 F51 0.2- 0.1+ 171210 807 0.1+ 1.0- 171223 V06 0.1+ 0.0
170427 F51 0.1+ 0.1- 171210 807 0.5+ 0.4- 171223 691 0.2- 0.3+
170427 F51 0.0 0.1- 171211 H21 0.3+ 0.4- 171223 691 0.3+ 0.0
171208 F51 0.0 0.0 171211 H21 0.3+ 0.5- 171223 691 0.3- 1.5+
171208 F51 0.4+ 0.0 171211 H21 0.3+ 0.2- 171223 F51 0.2+ 0.0
171208 F51 0.1+ 0.1+ 171212 926 0.4- 0.3+ 171223 F51 0.1- 0.1+
171208 F51 0.0 0.0 171212 926 0.7+ 0.1+ 171223 F51 0.1+ 0.0
171209 807 0.0 0.3- 171212 926 0.6- 0.6-
Ephemeris:
2017 XA2 a,e,i = 1.41, 0.49, 26 q = 0.7223
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2018 02 27 04 25 51.3 +22 50 04 1.7409 2.0075 90.3 29.6 23.9
...
2018 03 14 04 43 13.6 +25 02 13 1.9711 2.0404 79.6 28.6 24.2
...
2018 03 22 04 54 03.9 +26 03 16 2.0894 2.0548 74.2 27.8 24.3
...
2018 03 28 05 02 47.6 +26 44 57 2.1752 2.0642 70.3 27.1 24.4
2018 03 29 05 04 17.6 +26 51 34 2.1892 2.0657 69.6 26.9 24.4
2018 03 30 05 05 48.3 +26 58 05 2.2031 2.0671 69.0 26.8 24.4
...
2018 04 05 05 15 07.4 +27 35 07 2.2850 2.0749 65.2 26.0 24.5
...
2018 04 13 05 28 09.6 +28 19 08 2.3889 2.0835 60.3 24.7 24.5
...
2018 04 28 05 54 14.2 +29 25 10 2.5654 2.0939 51.6 22.1 24.6
A. U. Tomatic (C) Copyright 2018 MPC M.P.E.C. 2018-F149
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