MPEC 2017-A43 : 2017 AR4
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M.P.E.C. 2017-A43 Issued 2017 Jan. 7, 00:08 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
2017 AR4
Observations:
K17A04R* C2017 01 05.23170 07 25 52.94 +22 17 40.3 19.7 VqEA043G96
K17A04R C2017 01 05.23598 07 25 51.96 +22 18 08.9 19.1 VqEA043G96
K17A04R C2017 01 05.24027 07 25 50.85 +22 18 35.2 19.5 VqEA043G96
K17A04R C2017 01 05.24455 07 25 49.82 +22 19 02.9 qEA043G96
K17A04R C2017 01 05.31237 07 25 33.27 +22 26 12.9 18.9 VqEA043G96
K17A04R C2017 01 05.31585 07 25 32.41 +22 26 34.1 19.2 VqEA043G96
K17A04R C2017 01 05.32802 07 25 29.38 +22 27 50.4 19.4 VqEA043I52
K17A04R C2017 01 05.32920 07 25 29.11 +22 27 57.9 19.3 VqEA043I52
K17A04R C2017 01 05.33123 07 25 28.60 +22 28 10.6 19.6 VqEA043I52
K17A04R C2017 01 05.33247 07 25 28.28 +22 28 18.2 19.6 VqEA043I52
K17A04R C2017 01 05.34367 07 25 25.54 +22 29 28.2 19.7 VqEA043G96
K17A04R C2017 01 05.34490 07 25 25.27 +22 29 36.2 19.5 VqEA043G96
K17A04R C2017 01 05.34609 07 25 24.93 +22 29 43.3 19.7 VqEA043G96
K17A04R C2017 01 05.34724 07 25 24.66 +22 29 50.8 19.8 VqEA043G96
K17A04R 1C2017 01 05.41047 07 25 11.13 +22 35 55.4 EA043658
K17A04R 1C2017 01 05.41122 07 25 10.95 +22 35 59.9 EA043658
K17A04R 1C2017 01 05.41271 07 25 10.59 +22 36 09.1 EA043658
K17A04R C2017 01 05.43059 07 25 04.43 +22 38 24.2 19.4 VqEA043I52
K17A04R C2017 01 05.43196 07 25 04.10 +22 38 32.9 19.7 VqEA043I52
K17A04R C2017 01 05.43318 07 25 03.78 +22 38 40.1 19.7 VqEA043I52
K17A04R C2017 01 05.43442 07 25 03.52 +22 38 47.8 19.9 VqEA043I52
K17A04R KC2017 01 05.92262 07 23 32.02 +23 28 50.8 19.8 VqEA043I93
K17A04R KC2017 01 05.92814 07 23 30.72 +23 29 25.9 19.5 VqEA043I93
K17A04R KC2017 01 05.93309 07 23 29.57 +23 29 56.6 19.6 VqEA043I93
K17A04R C2017 01 06.32217 07 22 07.76 +24 09 58.2 19.3 RoEA043926
K17A04R C2017 01 06.32687 07 22 06.62 +24 10 25.8 19.3 RoEA043926
K17A04R C2017 01 06.33077 07 22 05.67 +24 10 49.3 19.3 RoEA043926
K17A04R KC2017 01 06.82886 07 20 30.17 +24 59 54.7 19.3 RqEA043587
K17A04R KC2017 01 06.83214 07 20 29.45 +25 00 15.0 qEA043587
K17A04R KC2017 01 06.83760 07 20 28.24 +25 00 48.2 qEA043587
Observer details:
587 Sormano. Observers A. Fumagalli, I. Proserpio, P. Sicoli, A. Testa.
Measurer F. P. Sicoli TEL 0. 5-m f/6. 8 reflector.
658 National Research Council of Canada. Observer D. D. Balam. 1.82-m
Plaskett telescope + CCD.
926 Tenagra II Observatory. Observers M. Schwartz, P. R. Holvorcem. Measurer
M. Schwartz. 0.81-m f/7 Ritchey-Chretien + CCD.
G96 Mt. Lemmon Survey. Observer A. D. Grauer. Measurers E. J. Christensen,
D. C. Fuls, A. R. Gibbs, A. D. Grauer, J. A. Johnson, R. A. Kowalski,
S. M. Larson, G. J. Leonard, R. G. Matheny, R. L. Seaman, F. C. Shelly.
1.5-m reflector + 10K CCD.
I52 Steward Observatory, Mt. Lemmon Station. Observer G. J. Leonard.
Measurers E. J. Christensen, D. C. Fuls, A. R. Gibbs, A. D. Grauer,
J. A. Johnson, R. A. Kowalski, S. M. Larson, G. J. Leonard, R. G. Matheny,
R. L. Seaman, F. C. Shelly. 1.0-m reflector + CCD.
I93 St Pardon de Conques. Observer F. Losse. 0.40-m f/3.7 reflector + CCD.
Orbital elements:
2017 AR4 Earth MOID = 0.0362 AU
Epoch 2017 Feb. 16.0 TT = JDT 2457800.5 MPC
M 148.41430 (2000.0) P Q
n 0.95151179 Peri. 242.06368 +0.96707515 +0.21926103
a 1.0237485 Node 105.03177 -0.15977901 +0.91823605
e 0.0904576 Incl. 7.68739 -0.19808159 +0.32979867
P 1.04 H 24.6 G 0.15 U 7
Residuals in seconds of arc
170105 G96 0.0 0.1+ 170105 G96 0.0 0.3- 170105 I52 0.1+ 0.0
170105 G96 0.7+ 1.3+ 170105 G96 0.4+ 0.0 170105 I93 0.1- 0.5-
170105 G96 0.4- 0.1+ 170105 G96 0.2- 0.3- 170105 I93 0.3- 0.1+
170105 G96 0.4- 0.4+ 170105 G96 0.1- 0.0 170105 I93 0.1- 0.1-
170105 G96 0.1+ 0.3+ 170105 658 0.7+ 0.3+ 170106 926 0.6- 0.7+
170105 G96 0.0 0.3- 170105 658 0.6+ 0.1+ 170106 926 0.4- 0.1-
170105 I52 0.3- 0.4- 170105 658 0.5+ 0.1+ 170106 926 0.2- 0.1-
170105 I52 0.0 0.3- 170105 I52 0.1+ 0.3- 170106 587 0.2+ 0.1-
170105 I52 0.2- 0.3- 170105 I52 0.0 0.1+ 170106 587 0.3+ 0.1+
170105 I52 0.4- 0.4- 170105 I52 0.4- 0.2- 170106 587 0.4+ 0.0
Ephemeris:
2017 AR4 a,e,i = 1.02, 0.09, 8 q = 0.9311
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2016 12 08 08 34 35.0 -24 23 58 0.08945 1.0187 109.7 65.5 21.7
...
2016 12 23 08 06 57.3 -02 52 07 0.07373 1.0416 140.5 36.9 20.5
...
2016 12 31 07 43 19.5 +12 33 11 0.07325 1.0532 161.9 16.9 19.9
...
2017 01 06 07 23 13.3 +23 37 26 0.07840 1.0616 176.3 3.4 19.5
2017 01 07 07 19 51.1 +25 17 36 0.07972 1.0629 176.6 3.1 19.6
2017 01 08 07 16 30.3 +26 53 57 0.08116 1.0643 175.4 4.3 19.7
...
2017 01 14 06 57 30.5 +35 05 42 0.09212 1.0720 163.1 15.5 20.4
...
2017 01 22 06 37 18.5 +42 22 47 0.1117 1.0816 149.2 27.8 21.2
...
2017 02 06 06 22 35.2 +48 33 31 0.1577 1.0968 131.4 42.4 22.4
A. U. Tomatic (C) Copyright 2017 MPC M.P.E.C. 2017-A43
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