MPEC 2017-Y121: 2017 YL5
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M.P.E.C. 2017-Y121 Issued 2017 Dec. 27, 20:22 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 YL5
Observations:
K17Y05L* C2017 12 25.23466 04 48 08.89 +11 09 30.2 UEY121G96
K17Y05L C2017 12 25.23983 04 48 04.11 +11 09 13.8 19.5 GUEY121G96
K17Y05L C2017 12 25.24499 04 47 59.28 +11 08 57.1 19.4 GUEY121G96
K17Y05L C2017 12 25.25014 04 47 54.48 +11 08 40.6 19.6 GUEY121G96
K17Y05L C2017 12 25.28984 04 47 17.43 +11 06 31.7 UEY121I52
K17Y05L C2017 12 25.29025 04 47 17.07 +11 06 31.7 UEY121I52
K17Y05L C2017 12 25.29067 04 47 16.65 +11 06 29.9 UEY121I52
K17Y05L C2017 12 25.29108 04 47 16.26 +11 06 28.6 19.0 GUEY121I52
K17Y05L KC2017 12 25.87372 04 37 57.00 +10 32 02.3 19.1 RoEY121K88
K17Y05L KC2017 12 25.87677 04 37 53.77 +10 31 51.2 18.8 RoEY121K88
K17Y05L KC2017 12 25.87981 04 37 50.51 +10 31 39.7 18.9 RoEY121K88
K17Y05L C2017 12 25.88608 04 37 44.38 +10 31 13.7 qEY121246
K17Y05L C2017 12 25.88635 04 37 44.14 +10 31 13.3 qEY121246
K17Y05L C2017 12 25.88678 04 37 43.64 +10 31 12.1 19.5 RqEY121246
K17Y05L C2017 12 25.88772 04 37 42.62 +10 31 06.6 qEY121246
K17Y05L C2017 12 26.16767 04 32 46.57 +10 13 00.1 19.0 GUEY121I52
K17Y05L C2017 12 26.16785 04 32 46.35 +10 12 59.1 19.3 GUEY121I52
K17Y05L C2017 12 26.16803 04 32 46.12 +10 12 58.5 19.2 GUEY121I52
K17Y05L C2017 12 26.16821 04 32 45.95 +10 12 57.5 19.3 GUEY121I52
K17Y05L KC2017 12 27.15760004 12 10.44 +08 53 04.5 19.5 VuEY121H21
K17Y05L KC2017 12 27.15857804 12 09.03 +08 52 58.9 19.2 VuEY121H21
K17Y05L KC2017 12 27.16038004 12 06.41 +08 52 48.9 19.4 VuEY121H21
K17Y05L KC2017 12 27.16217204 12 03.80 +08 52 39.1 19.6 VuEY121H21
K17Y05L KC2017 12 27.16395904 12 01.21 +08 52 29.0 19.7 VuEY121H21
K17Y05L C2017 12 27.37151 04 06 55.50 +08 32 29.7 19.1 GUEY121I52
K17Y05L C2017 12 27.37379 04 06 52.06 +08 32 15.9 19.4 GUEY121I52
K17Y05L C2017 12 27.37581 04 06 49.01 +08 32 03.4 19.1 GUEY121I52
K17Y05L C2017 12 27.37654 04 06 47.90 +08 31 59.0 19.2 GUEY121I52
Observer details:
246 Klet Observatory-KLENOT. Observers M. Tichy, J. Ticha. Measurer M. Tichy.
1.06-m KLENOT Telescope + 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.
H21 Astronomical Research Observatory, Westfield. Observer R. Holmes.
Measurers S. Foglia, L. Buzzi, T. Linder, R. Holmes. 0.61-m f/4.5
astrograph + CCD.
I52 Steward Observatory, Mt. Lemmon Station. Observer R. A. Kowalski.
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.
K88 GINOP-KHK, Piszkesteto. Observer K. Sarneczky. 0.60-m Schmidt + CCD.
Orbital elements:
2017 YL5 Earth MOID = 0.0076 AU
Epoch 2017 Sept. 4.0 TT = JDT 2458000.5 MPC
M 286.84638 (2000.0) P Q
n 0.43970297 Peri. 88.49686 -0.97402366 +0.21458044
a 1.7127598 Node 103.88990 -0.22582855 -0.89688630
e 0.6762486 Incl. 4.27362 -0.01671476 -0.38671721
P 2.24 H 23.8 G 0.15 U 7
Residuals in seconds of arc
171225 G96 0.3+ 0.3+ 171225 K88 0.4- 0.4+ 171227 H21 0.2+ 0.3-
171225 G96 0.5+ 0.3+ 171225 246 0.3+ 0.2- 171227 H21 0.1+ 0.2-
171225 G96 0.1- 0.0 171225 246 1.0+ 0.4+ 171227 H21 0.1- 0.1+
171225 G96 0.3- 0.1- 171225 246 0.3+ 0.9+ 171227 H21 0.1- 0.0
171225 I52 0.2- 1.0- 171225 246 0.0 1.0- 171227 I52 0.0 0.2+
171225 I52 0.2+ 0.4+ 171226 I52 0.0 0.1+ 171227 I52 0.0 0.3+
171225 I52 0.2- 0.1- 171226 I52 0.2- 0.2- 171227 I52 0.0 0.1+
171225 I52 0.3- 0.0 171226 I52 0.5- 0.0 171227 I52 0.1- 0.1+
171225 K88 0.0 0.2- 171226 I52 0.0 0.3-
171225 K88 0.1+ 0.4+ 171227 H21 0.1+ 0.2-
Ephemeris:
2017 YL5 a,e,i = 1.71, 0.68, 4 q = 0.5545
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2017 11 27 06 17 16.4 +16 30 58 0.4355 1.3807 149.8 21.1 23.7
...
2017 12 12 06 03 49.8 +15 14 59 0.2374 1.2166 166.3 11.1 21.8
...
2017 12 20 05 36 27.6 +13 48 49 0.1428 1.1247 169.8 8.9 20.4
...
2017 12 26 04 35 45.9 +10 25 04 0.07884 1.0540 152.4 25.6 19.6
2017 12 27 04 15 48.7 +09 08 35 0.06943 1.0421 146.6 31.3 19.4
2017 12 28 03 50 12.4 +07 24 04 0.06076 1.0302 139.2 38.6 19.3
...
2018 01 03 22 54 12.9 -13 21 46 0.04864 0.9581 57.6 119.9 22.0
...
2018 01 11 20 07 31.7 -17 27 01 0.1240 0.8617 10.2 168.3 34.3
...
2018 01 26 19 21 00.7 -17 29 00 0.3137 0.6907 17.0 155.4 30.1
A. U. Tomatic (C) Copyright 2017 MPC M.P.E.C. 2017-Y121
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