MPEC 2018-Y91 : 2018 YJ2
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M.P.E.C. 2018-Y91 Issued 2018 Dec. 28, 15:56 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
2018 YJ2
Observations:
K18Y02J* C2018 12 26.57396809 16 19.25 +81 04 57.1 18.19oVEY091T08
K18Y02J C2018 12 26.57818409 15 53.53 +81 04 22.6 18.29oVEY091T08
K18Y02J C2018 12 26.59004509 14 40.32 +81 02 42.7 17.88oVEY091T08
K18Y02J C2018 12 26.60054509 13 35.82 +81 01 13.1 17.89oVEY091T08
K18Y02J KC2018 12 26.80844608 55 51.41 +80 29 12.3 18.1 GVEY091L01
K18Y02J KC2018 12 26.80903508 55 48.47 +80 29 07.3 18.1 GVEY091L01
K18Y02J KC2018 12 26.81042308 55 41.52 +80 28 55.6 18.1 GVEY091L01
K18Y02J KC2018 12 26.81236308 55 31.79 +80 28 39.5 18.1 GVEY091L01
K18Y02J KC2018 12 26.81335808 55 26.80 +80 28 31.0 18.0 GVEY091L01
K18Y02J KC2018 12 26.83908 08 53 16.48 +80 25 02.0 17.8 RoEY091K88
K18Y02J KC2018 12 26.84108 08 53 06.51 +80 24 45.1 17.8 RoEY091K88
K18Y02J KC2018 12 26.84308 08 52 56.61 +80 24 28.0 17.7 RoEY091K88
K18Y02J KC2018 12 26.84509 08 52 46.65 +80 24 10.9 17.8 RoEY091K88
K18Y02J KC2018 12 26.84709 08 52 36.68 +80 23 53.8 17.8 RoEY091K88
K18Y02J KC2018 12 26.84909 08 52 26.74 +80 23 36.7 17.8 RoEY091K88
K18Y02J KC2018 12 26.85110 08 52 16.83 +80 23 19.6 17.9 RoEY091K88
K18Y02J KC2018 12 26.85310 08 52 06.90 +80 23 02.5 17.8 RoEY091K88
K18Y02J KC2018 12 26.85510 08 51 57.07 +80 22 45.1 17.7 RoEY091K88
K18Y02J KC2018 12 26.86044 08 51 34.82 +80 21 48.3 17.5 VEY091104
K18Y02J KC2018 12 26.86679 08 51 03.61 +80 20 54.2 17.5 VEY091104
K18Y02J KC2018 12 26.87103 08 50 42.95 +80 20 17.8 17.6 VEY091104
K18Y02J KC2018 12 26.87315 08 50 32.53 +80 19 59.5 17.5 VEY091104
K18Y02J KC2018 12 26.92475 08 46 22.62 +80 12 25.8 18.0 GVEY091K38
K18Y02J KC2018 12 26.93222 08 45 47.03 +80 11 19.8 18.1 GVEY091K38
K18Y02J KC2018 12 26.93992 08 45 10.22 +80 10 11.1 18.2 GVEY091K38
K18Y02J KC2018 12 26.94353 08 44 47.38 +80 09 47.1 17.8 RoEY091K88
K18Y02J KC2018 12 26.94508708 44 48.12 +80 09 23.6 18.0 GVEY091C95
K18Y02J KC2018 12 26.94528 08 44 39.06 +80 09 31.6 17.8 RoEY091K88
K18Y02J KC2018 12 26.94702 08 44 30.73 +80 09 15.6 17.7 RoEY091K88
K18Y02J KC2018 12 26.94716 08 44 35.85 +80 09 06.4 18.4 GVEY091K38
K18Y02J KC2018 12 26.94876 08 44 22.57 +80 09 00.1 17.8 RoEY091K88
K18Y02J KC2018 12 26.95050 08 44 14.32 +80 08 44.2 17.9 RoEY091K88
K18Y02J KC2018 12 26.95434608 44 04.25 +80 08 02.2 17.8 GVEY091C95
K18Y02J KC2018 12 26.95500 08 43 58.80 +80 07 56.1 18.4 GVEY091K38
K18Y02J KC2018 12 26.96360808 43 20.81 +80 06 37.5 18.5 GVEY091C95
K18Y02J KC2018 12 26.96855 08 42 55.15 +80 05 54.1 18.6 GVEY091K38
K18Y02J KC2018 12 26.97286808 42 37.46 +80 05 14.5 18.1 GVEY091C95
K18Y02J KC2018 12 26.98313 08 42 02.17 +80 01 32.3 18.0 VqEY091W34
K18Y02J KC2018 12 26.98926 08 41 35.83 +80 00 38.6 18.0 VqEY091W34
K18Y02J KC2018 12 26.99898 08 40 53.82 +79 59 11.8 18.0 VqEY091W34
K18Y02J KC2018 12 27.00697 08 40 19.69 +79 58 01.5 17.5 VqEY091W34
K18Y02J 9C2018 12 27.05008 08 36 59.67 +79 53 28.0 17.4 VUEY091G40
K18Y02J 9C2018 12 27.07121 08 35 24.62 +79 50 12.2 17.5 VUEY091G40
K18Y02J C2018 12 27.28115 08 21 46.34 +79 15 17.6 17.5 rEY091718
K18Y02J C2018 12 27.28276 08 21 40.18 +79 15 02.8 17.9 rEY091718
K18Y02J C2018 12 27.28437 08 21 33.88 +79 14 47.1 17.6 rEY091718
K18Y02J C2018 12 27.28597 08 21 27.84 +79 14 31.5 17.2 rEY091718
K18Y02J C2018 12 27.28758 08 21 21.81 +79 14 16.8 17.6 rEY091718
K18Y02J C2018 12 27.28918 08 21 15.59 +79 14 01.2 17.3 rEY091718
K18Y02J KC2018 12 27.71783507 58 31.37 +77 59 26.1 17.9 GVEY091J95
K18Y02J KC2018 12 27.72084107 58 23.34 +77 58 56.6 17.9 GVEY091J95
K18Y02J KC2018 12 27.72319507 58 17.09 +77 58 33.5 18.1 GVEY091J95
K18Y02J KC2018 12 27.72585307 58 09.99 +77 58 07.2 18.2 GVEY091J95
K18Y02J KC2018 12 27.73983 07 57 37.79 +77 56 07.2 18.1 GVEY091595
K18Y02J KC2018 12 27.74092 07 57 34.21 +77 55 50.8 18.2 GVEY091587
K18Y02J KC2018 12 27.74192 07 57 31.86 +77 55 46.8 18.2 GVEY091595
K18Y02J KC2018 12 27.74352 07 57 27.24 +77 55 25.4 VEY091587
K18Y02J KC2018 12 27.74612 07 57 20.27 +77 55 00.0 VEY091587
K18Y02J KC2018 12 27.75073 07 57 08.29 +77 54 20.9 18.3 GVEY091595
K18Y02J KC2018 12 27.87587 07 51 36.60 +77 33 52.4 17.7 GVEY091K38
K18Y02J KC2018 12 27.87846 07 51 29.77 +77 33 27.0 17.5 GVEY091K38
K18Y02J KC2018 12 27.88104 07 51 23.04 +77 33 01.6 17.5 GVEY091K38
K18Y02J KC2018 12 27.88363 07 51 16.29 +77 32 36.2 17.6 GVEY091K38
K18Y02J C2018 12 28.47241 07 30 29.19 +75 52 13.5 17.5 RmEY091P93
K18Y02J C2018 12 28.47324 07 30 27.52 +75 52 05.5 17.8 RmEY091P93
K18Y02J C2018 12 28.47408 07 30 26.07 +75 51 57.6 17.9 RmEY091P93
K18Y02J C2018 12 28.50635307 28 58.66 +75 47 52.2 17.71oVEY091T05
K18Y02J C2018 12 28.50864107 28 54.28 +75 47 28.4 17.77oVEY091T05
K18Y02J C2018 12 28.52612707 28 20.39 +75 44 29.9 17.81oVEY091T05
K18Y02J C2018 12 28.53633307 28 00.82 +75 42 45.1 18.27oVEY091T05
Observer details:
104 San Marcello Pistoiese. Observers P. Bacci, M. Maestripieri. Measurers
P. Bacci, L. Tesi, G. Fagioli. 0.60-m reflector + CCD.
587 Sormano. Observers A. Carcano, E. Colzani, A. Fumagalli, A. Testa,
G. Ventre. Measurer A. Testa. 0.5-m f/6.8 reflector + CCD.
595 Farra dIsonzo. Observer E. Pettarin. 0.40-m f/5.15 reflector + CCD.
718 Tooele. Observer P. Wiggins. 0.35-m f/5.5 Schmidt-Cassegrain + CCD.
C95 SATINO Remote Observatory, Haute Provence. Observer J. Jahn. 0.60-m
f/3.2 Newtonian reflector + CCD.
G40 Slooh.com Canary Islands Observatory. Observer B. Lutkenhoner. 0.5-m
f/6.8 Corrected Dall-Kirkham + CCD.
J95 Great Shefford. Observer P. Birtwhistle. 0.41-m f/6.3
Schmidt-Cassegrain + CCD.
K38 M57 Observatory, Saltrio. Observer G. Baj. 0.3-m f/5.5 Ritchey-Chretien
+ CCD.
K88 GINOP-KHK, Piszkesteto. Observer K. Sarneczky. 0.60-m Schmidt + CCD.
L01 Visnjan Observatory, Tican. Observer K. Korlevic. 1.0-m f/2.9 reflector
+ CCD.
P93 Space Tracking and Communications Center, JAXA. Observers S. Okumura,
T. Fujiwara. 1.0-m f/3.0 reflector + CCD.
T05 ATLAS-HKO, Haleakala. Observers L. Denneau, J. Tonry, A. Heinze,
H. Weiland. Measurers L. Denneau, J. Tonry, A. Heinze, H. Weiland,
B. Stalder. 0.5-m reflector + CCD.
T08 ATLAS-MLO, Mauna Loa. Observers L. Denneau, J. Tonry, A. Heinze,
H. Weiland. Measurers L. Denneau, J. Tonry, A. Heinze, H. Weiland,
B. Stalder. 0.5-m reflector + CCD.
W34 Squirrel Valley Observatory, Columbus. Observer R. L. Flynn. 0.2-m
f/7.0 Schmidt-Cassegrain + CCD.
Orbital elements:
2018 YJ2 PHA, Earth MOID = 0.0331 AU
Epoch 2019 Apr. 27.0 TT = JDT 2458600.5 MPC
M 145.92589 (2000.0) P Q
n 0.78817149 Peri. 293.31602 +0.99424791 +0.02932792
a 1.1607060 Node 65.13647 +0.01898574 +0.89828550
e 0.4037368 Incl. 6.51900 -0.10540697 +0.43843247
P 1.25 H 22.0 G 0.15 U 7
Residuals in seconds of arc
181226 T08 (0.0 1.6+) 181226 K38 0.3- 0.2- 181227 718 0.2+ 0.6+
181226 T08 (0.9+ 1.7+) 181226 K88 0.1- 0.2- 181227 J95 0.2- 0.2-
181226 T08 0.6+ 0.2+ 181226 C95 0.3+ 0.4- 181227 J95 0.2- 0.1-
181226 T08 0.2- 1.2- 181226 K88 0.1- 0.1+ 181227 J95 0.0 0.1+
181226 L01 0.1- 0.1+ 181226 K88 0.2- 0.1- 181227 J95 0.0 0.0
181226 L01 0.1- 0.0 181226 K38 0.3- 0.3- 181227 595 0.4+ 0.1+
181226 L01 0.1- 0.0 181226 K88 0.1+ 0.1+ 181227 587 0.0 0.3+
181226 L01 0.1- 0.1+ 181226 K88 0.1+ 0.0 181227 595 0.5- 0.0
181226 L01 0.2- 0.0 181226 C95 0.0 0.8+ 181227 587 0.0 0.2+
181226 K88 0.1- 0.0 181226 K38 0.3- 0.3- 181227 587 0.0 0.2+
181226 K88 0.1- 0.2+ 181226 C95 0.4+ 0.8- 181227 595 0.0 0.1-
181226 K88 0.0 0.1+ 181226 K38 0.1- 0.0 181227 K38 0.0 0.2-
181226 K88 0.0 0.2+ 181226 C95 0.6+ 0.2- 181227 K38 0.3- 0.1-
181226 K88 0.1- 0.2+ 181226 W34 0.2- 0.6- 181227 K38 0.2- 0.1-
181226 K88 0.2- 0.2+ 181226 W34 0.1+ 0.1+ 181227 K38 0.2- 0.0
181226 K88 0.0 0.3+ 181226 W34 0.3- 0.4- 181228 P93 0.7+ 0.1+
181226 K88 0.1- 0.3+ 181227 W34 0.1+ 0.2+ 181228 P93 0.2+ 0.0
181226 K88 0.1+ 0.1+ 181227 G40 0.2+ 0.2- 181228 P93 0.6+ 0.1+
181226 104 0.2+ 0.2- 181227 G40 0.5- 0.0 181228 T05 0.1- 0.1+
181226 104 0.0 0.0 181227 718 0.3+ 0.0 181228 T05 0.2+ 0.4-
181226 104 0.2+ 0.0 181227 718 0.3+ 0.6+ 181228 T05 0.1- 0.1-
181226 104 0.1+ 0.1- 181227 718 0.0 0.3+ 181228 T05 0.2- 0.0
181226 K38 0.0 0.1- 181227 718 0.2+ 0.1+
181226 K38 0.2+ 0.0 181227 718 0.5+ 0.8+
Ephemeris:
2018 YJ2 a,e,i = 1.16, 0.40, 7 q = 0.6921
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2018 11 28 17 31 12.3 -25 10 17 0.1754 0.8218 18.1 158.0 28.1
...
2018 12 13 17 19 03.2 +01 23 25 0.06870 0.9224 24.5 153.7 25.2
...
2018 12 21 16 31 34.7 +57 09 16 0.04723 0.9787 82.5 94.8 18.7
...
2018 12 27 08 40 17.2 +80 00 11 0.06855 1.0208 121.4 55.3 18.2
2018 12 28 07 46 15.4 +77 12 21 0.07395 1.0278 125.2 51.4 18.3
2018 12 29 07 16 15.1 +74 25 07 0.07965 1.0348 128.5 48.1 18.4
...
2019 01 04 06 21 15.4 +62 18 50 0.1178 1.0762 140.0 35.9 19.0
...
2019 01 12 06 07 42.2 +53 50 15 0.1750 1.1301 144.2 30.6 19.8
...
2019 01 27 06 09 13.6 +45 47 24 0.2964 1.2251 139.5 31.5 21.1
A. U. Tomatic (C) Copyright 2018 MPC M.P.E.C. 2018-Y91
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