MPEC 2015-Y81 : 2015 YU7
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M.P.E.C. 2015-Y81 Issued 2015 Dec. 26, 18:58 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
2015 YU7
Observations:
K15Y07U* C2015 12 24.28082 01 52 17.184-00 51 24.98 18.9 iLEY081F51
K15Y07U C2015 12 24.29207 01 52 21.281-00 51 07.71 18.9 iLEY081F51
K15Y07U C2015 12 24.30325 01 52 25.359-00 50 50.48 18.7 iLEY081F51
K15Y07U C2015 12 24.31446 01 52 29.453-00 50 33.09 18.6 iLEY081F51
K15Y07U KC2015 12 24.79486 01 55 34.63 -00 38 57.9 qEY081J95
K15Y07U KC2015 12 24.80199 01 55 37.17 -00 38 45.9 qEY081J95
K15Y07U KC2015 12 24.80385201 55 36.51 -00 37 16.4 18.9 RqEY081K92
K15Y07U KC2015 12 24.80677001 55 37.53 -00 37 12.1 18.9 RqEY081K92
K15Y07U KC2015 12 24.80969101 55 38.55 -00 37 07.9 18.5 RqEY081K92
K15Y07U KC2015 12 24.81115 01 55 40.39 -00 38 33.8 18.4 RqEY081J95
K15Y07U KC2015 12 24.81261901 55 39.57 -00 37 03.7 18.6 RqEY081K92
K15Y07U KC2015 12 24.81554401 55 40.60 -00 36 59.3 18.8 RqEY081K92
K15Y07U KC2015 12 24.88961 01 56 08.14 -00 36 38.4 18.7 VqEY081Z99
K15Y07U KC2015 12 24.89237 01 56 09.12 -00 36 35.0 18.9 VqEY081Z99
K15Y07U KC2015 12 24.89768 01 56 11.05 -00 36 27.1 18.9 VqEY081Z99
K15Y07U |C2015 12 25.10536 01 57 26.16 -00 29 59.7 18.9 VuEY081807
K15Y07U |C2015 12 25.10772 01 57 26.98 -00 29 56.3 18.8 VuEY081807
K15Y07U |C2015 12 25.11019 01 57 27.82 -00 29 52.8 18.9 VuEY081807
K15Y07U |C2015 12 25.11242 01 57 28.58 -00 29 49.5 18.8 VuEY081807
K15Y07U |C2015 12 25.11488 01 57 29.42 -00 29 46.0 18.8 VuEY081807
K15Y07U KC2015 12 25.78064 02 01 25.55 -00 15 30.9 19.0 RcEY081A24
K15Y07U KC2015 12 25.78307 02 01 26.30 -00 15 26.2 19.2 RcEY081A24
K15Y07U KC2015 12 26.08042502 03 05.73 -00 08 40.2 19.1 VuEY081H21
K15Y07U KC2015 12 26.08676602 03 07.69 -00 08 31.6 19.1 VuEY081H21
K15Y07U KC2015 12 26.09303902 03 09.65 -00 08 23.3 19.1 VuEY081H21
K15Y07U KC2015 12 26.09686902 03 10.84 -00 08 18.4 19.1 VuEY081H21
K15Y07U |C2015 12 26.11011 02 03 13.91 -00 06 50.8 18.8 VuEY081807
K15Y07U |C2015 12 26.11174 02 03 14.41 -00 06 48.5 18.7 VuEY081807
K15Y07U |C2015 12 26.11372 02 03 15.03 -00 06 45.9 18.8 VuEY081807
K15Y07U |C2015 12 26.11535 02 03 15.54 -00 06 43.7 18.9 VuEY081807
K15Y07U |C2015 12 26.11723 02 03 16.13 -00 06 41.1 18.8 VuEY081807
K15Y07U KC2015 12 26.70289 02 06 28.16 +00 04 45.4 19.2 RoEY081461
K15Y07U KC2015 12 26.71403 02 06 31.53 +00 04 59.3 19.2 RoEY081461
Observer details:
461 University of Szeged, Piszkesteto Stn. (Konkoly). Observer K. Sarneczky.
0.60-m Schmidt + CCD.
807 Cerro Tololo. Observers T. Linder, R. Holmes. 0.61-m f/6.5 astrograph
+ CCD.
A24 New Millennium Observatory, Mozzate. Observer E. Cozzi. 0.36-m f/11
Schmidt-Cassegrain + CCD.
F51 Pan-STARRS 1, Haleakala. Observers B. Gibson, T. Goggia, N. Primak,
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.
H21 Astronomical Research Observatory, Westfield. Observer R. Holmes.
Measurers S. Foglia, L. Buzzi, T. Linder, R. Holmes. 0.81-m f/4.0
astrograph + CCD.
J95 Great Shefford. Observer P. Birtwhistle. 0.40-m f/6.0 Schmidt-Cassegrain
+ CCD.
K92 Sutherland-LCOGT B. Observers T. Lister, S. Greenstreet, E. Gomez.
Measurer T. Lister. 1.0-m f/8 Ritchey-Chretien + CCD.
Z99 Clixby Observatory, Cleethorpes. Observer A. Mickleburgh. 0.36-m f/8
Schmidt-Cassegrain + CCD.
Orbital elements:
2015 YU7 PHA, Earth MOID = 0.0058 AU
Epoch 2016 Jan. 13.0 TT = JDT 2457400.5 MPC
M 139.58356 (2000.0) P Q
n 1.32842805 Peri. 44.20631 +0.46969716 +0.87466370
a 0.8195536 Node 254.14766 -0.84058716 +0.40162097
e 0.4111362 Incl. 7.15296 -0.26981068 +0.27141115
P 0.74 H 21.2 G 0.15 U 8
Residuals in seconds of arc
151224 F51 0.0 0.3+ 151224 K92 0.1+ 0.1- 151226 H21 0.1- 0.5+
151224 F51 0.1- 0.2+ 151224 Z99 0.1- 0.3+ 151226 H21 0.3- 0.6+
151224 F51 0.1- 0.2+ 151224 Z99 0.1- 0.3- 151226 H21 0.2- 0.6+
151224 F51 0.0 0.3+ 151224 Z99 0.7+ 0.2- 151226 H21 0.3- 0.3+
151224 J95 0.0 0.9- 151225 807 0.1+ 0.1- 151226 807 0.2+ 0.3-
151224 J95 0.1+ 0.5+ 151225 807 0.3+ 0.1- 151226 807 0.1+ 0.1-
151224 K92 0.0 0.1+ 151225 807 0.2+ 0.2- 151226 807 0.1+ 0.2-
151224 K92 0.0 0.1+ 151225 807 0.2+ 0.1- 151226 807 0.2+ 0.1-
151224 K92 0.0 0.0 151225 807 0.2+ 0.1- 151226 807 0.2+ 0.0
151224 J95 0.3- 0.9- 151225 A24 0.2+ 0.1- 151226 461 0.5- 0.2+
151224 K92 0.0 0.1- 151225 A24 0.3- 1.3+ 151226 461 0.1+ 0.1-
Ephemeris:
2015 YU7 a,e,i = 0.82, 0.41, 7 q = 0.4826
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2015 11 26 17 23 36.8 -11 18 56 0.1239 0.8727 21.2 155.9 26.1
...
2015 12 11 22 24 41.0 -11 43 17 0.05966 0.9713 75.3 101.3 18.7
...
2015 12 19 01 06 04.5 -03 46 45 0.09413 1.0154 107.0 68.0 18.5
...
2015 12 25 01 56 49.5 -00 33 05 0.1334 1.0445 113.8 59.5 19.1
2015 12 26 02 02 38.9 -00 09 50 0.1404 1.0490 114.3 58.7 19.2
2015 12 27 02 07 59.2 +00 11 43 0.1474 1.0534 114.6 58.1 19.2
...
2016 01 02 02 32 51.2 +01 55 47 0.1907 1.0780 115.1 55.7 19.8
...
2016 01 10 02 55 34.5 +03 38 01 0.2502 1.1055 113.0 55.0 20.4
...
2016 01 25 03 26 57.3 +06 08 15 0.3631 1.1410 106.3 55.9 21.3
A. U. Tomatic (C) Copyright 2015 MPC M.P.E.C. 2015-Y81
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