MPEC 2017-U194: 2017 UY4
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M.P.E.C. 2017-U194 Issued 2017 Oct. 26, 18:11 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 UY4
Observations:
K17U04Y* C2017 10 23.37847 00 53 11.581+00 57 59.78 21.5 wLEU194F51
K17U04Y C2017 10 23.39056 00 53 10.777+00 57 21.77 21.4 wLEU194F51
K17U04Y C2017 10 23.40264 00 53 09.975+00 56 44.30 21.3 wLEU194F51
K17U04Y C2017 10 23.41480 00 53 09.177+00 56 06.64 21.5 wLEU194F51
K17U04Y C2017 10 24.19795 00 52 50.06 +00 14 52.3 20.9 RoEU194926
K17U04Y C2017 10 24.20284 00 52 49.77 +00 14 36.9 21.7 RoEU194926
K17U04Y C2017 10 24.20770 00 52 49.50 +00 14 21.6 21.0 RoEU194926
K17U04Y C2017 10 24.25392 00 52 46.63 +00 11 53.1 21.3 GUEU194G96
K17U04Y C2017 10 24.25914 00 52 46.33 +00 11 36.4 20.8 GUEU194G96
K17U04Y C2017 10 24.26433 00 52 45.99 +00 11 20.2 20.7 GUEU194G96
K17U04Y C2017 10 24.26956 00 52 45.71 +00 11 03.8 21.4 GUEU194G96
K17U04Y C2017 10 24.37553 00 52 39.61 +00 05 27.4 20.3 GUEU194I52
K17U04Y C2017 10 24.37760 00 52 39.49 +00 05 20.9 21.2 GUEU194I52
K17U04Y C2017 10 24.38498 00 52 39.16 +00 04 57.0 20.2 GUEU194I52
K17U04Y KC2017 10 25.26733 00 52 19.27 -00 42 11.5 19.9 RoEU194291
K17U04Y C2017 10 25.26824 00 52 19.28 -00 42 15.5 21.4 GUEU194G96
K17U04Y C2017 10 25.27356 00 52 18.96 -00 42 32.6 20.7 GUEU194G96
K17U04Y KC2017 10 25.27405 00 52 18.98 -00 42 33.3 20.7 RoEU194291
K17U04Y C2017 10 25.27884 00 52 18.65 -00 42 49.8 21.5 GUEU194G96
K17U04Y KC2017 10 25.28080 00 52 18.57 -00 42 55.2 19.8 RoEU194291
K17U04Y C2017 10 25.28413 00 52 18.27 -00 43 07.4 UEU194G96
K17U04Y C2017 10 25.31220 00 52 16.65 -00 44 36.0 20.7 RoEU194926
K17U04Y C2017 10 25.32177 00 52 16.07 -00 45 06.9 20.5 RoEU194926
K17U04Y C2017 10 26.37018 00 51 49.45 -01 42 17.1 20.9 GUEU194V06
K17U04Y C2017 10 26.37170 00 51 49.37 -01 42 22.2 20.6 GUEU194V06
K17U04Y C2017 10 26.37321 00 51 49.31 -01 42 26.9 20.6 GUEU194V06
K17U04Y C2017 10 26.37473 00 51 49.22 -01 42 32.0 20.8 GUEU194V06
Observer details:
291 LPL/Spacewatch II. Observer M. T. Read. 1.8-m f/2.7 reflector + CCD.
926 Tenagra II Observatory. Observers M. Schwartz, P. R. Holvorcem. Measurer
M. Schwartz. 0.81-m f/7 Ritchey-Chretien + CCD.
F51 Pan-STARRS 1, Haleakala. Observers J. Bulger, T. Lowe, A. Schultz,
M. Willman. Measurers K. Chambers, S. Chastel, L. Denneau, H. Flewelling,
M. Huber, E. Lilly, E. Magnier, R. Wainscoat, C. Waters, R. Weryk. 1.8-m
Ritchey-Chretien + CCD.
G96 Mt. Lemmon Survey. 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.
1.5-m reflector + 10K CCD.
I52 Steward Observatory, Mt. Lemmon Station. Observer D. C. Fuls. 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.
V06 Catalina Sky Survey-Kuiper. Observer E. J. Christensen. 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. 1.55-m reflector + CCD.
Orbital elements:
2017 UY4 Earth MOID = 0.0510 AU
Epoch 2017 Sept. 4.0 TT = JDT 2458000.5 MPC
M 272.00933 (2000.0) P Q
n 0.76166943 Peri. 252.59278 -0.09250169 -0.99537906
a 1.1874765 Node 202.76193 +0.93696428 -0.07825732
e 0.1650456 Incl. 3.81868 +0.33695901 -0.05564454
P 1.29 H 25.3 G 0.15 U 7
Residuals in seconds of arc
171023 F51 0.2+ 0.2+ 171024 G96 0.3- 0.2- 171025 G96 0.6+ 0.1-
171023 F51 0.1+ 0.2- 171024 G96 0.3+ 0.0 171025 291 0.1+ 0.1+
171023 F51 0.1- 0.1- 171024 I52 0.0 0.0 171025 G96 0.4- 0.6-
171023 F51 0.1- 0.1+ 171024 I52 0.2- 0.1+ 171025 926 0.1- 0.2+
171024 926 0.1+ 0.2+ 171024 I52 0.5+ 0.3- 171025 926 0.7- 0.3+
171024 926 0.1+ 0.3+ 171025 291 1.4- 0.2+ 171026 V06 0.3+ 0.1-
171024 926 0.4+ 0.4+ 171025 G96 0.6+ 0.1- 171026 V06 0.2+ 0.2-
171024 G96 0.2- 0.3- 171025 G96 0.5+ 0.0 171026 V06 0.4+ 0.1+
171024 G96 0.1+ 0.5- 171025 291 0.2+ 0.2+ 171026 V06 0.1+ 0.0
Ephemeris:
2017 UY4 a,e,i = 1.19, 0.17, 4 q = 0.9915
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2017 09 26 01 04 54.4 +15 50 33 0.1610 1.1553 160.1 17.2 22.6
...
2017 10 11 01 00 02.2 +09 55 33 0.1178 1.1160 176.8 2.9 21.2
...
2017 10 19 00 55 31.6 +04 33 22 0.1013 1.0957 168.9 10.1 21.2
...
2017 10 25 00 52 26.7 -00 26 56 0.09178 1.0809 159.6 18.7 21.2
2017 10 26 00 52 01.9 -01 21 03 0.09043 1.0785 158.0 20.2 21.3
2017 10 27 00 51 39.4 -02 16 10 0.08914 1.0762 156.4 21.7 21.3
...
2017 11 02 00 50 26.7 -08 03 44 0.08260 1.0623 146.7 30.8 21.3
...
2017 11 10 00 52 20.1 -16 12 09 0.07660 1.0451 134.2 42.8 21.5
...
2017 11 25 01 10 59.8 -30 54 51 0.07103 1.0181 114.0 62.3 21.8
A. U. Tomatic (C) Copyright 2017 MPC M.P.E.C. 2017-U194
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