MPEC 2018-Y97 : 2007 YU56
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M.P.E.C. 2018-Y97 Issued 2018 Dec. 30, 20:13 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
2007 YU56
Revision to MPEC 2008-A15
Additional Observations:
K07Y56U C2018 12 28.33600701 18 33.54 +40 52 07.4 18.77oVEY097T05
K07Y56U C2018 12 28.34273001 18 39.90 +40 51 42.5 18.82oVEY097T05
K07Y56U C2018 12 28.36055001 18 56.56 +40 50 37.0 18.80oVEY097T05
K07Y56U C2018 12 28.37295801 19 08.23 +40 49 51.9 18.80oVEY097T05
K07Y56U KC2018 12 28.86103 01 27 14.52 +40 20 20.0 18.7 GVEY097K38
K07Y56U KC2018 12 28.87213201 27 24.86 +40 19 34.7 19.0 GVEY097L01
K07Y56U IC2018 12 28.87578901 27 28.45 +40 19 20.0 19.0 GVEY097L01
K07Y56U KC2018 12 28.87761701 27 30.26 +40 19 13.0 19.0 GVEY097L01
K07Y56U KC2018 12 28.87826601 27 30.88 +40 19 10.3 19.0 GVEY097L01
K07Y56U IC2018 12 28.87891601 27 31.53 +40 19 07.5 19.0 GVEY097L01
K07Y56U KC2018 12 28.88762 01 27 40.46 +40 18 34.6 19.0 GVEY097K38
K07Y56U KC2018 12 28.91297 01 28 05.31 +40 16 52.1 18.9 GVEY097K38
K07Y56U KC2018 12 28.91674 01 28 08.59 +40 16 27.0 18.2 RoEY097K88
K07Y56U KC2018 12 28.92092 01 28 12.73 +40 16 10.0 18.7 RoEY097K88
K07Y56U KC2018 12 28.94920 01 28 40.85 +40 14 25.3 18.7 VEY097104
K07Y56U KC2018 12 28.95317 01 28 44.82 +40 14 08.8 18.7 VEY097104
K07Y56U KC2018 12 28.95714 01 28 48.77 +40 13 52.2 18.6 VEY097104
K07Y56U C2018 12 29.52210 01 38 30.67 +39 35 45.5 18.9 RrEY097P93
K07Y56U C2018 12 29.52670 01 38 35.23 +39 35 24.4 19.0 RrEY097P93
K07Y56U C2018 12 29.52762 01 38 36.20 +39 35 20.3 19.2 RrEY097P93
K07Y56U C2018 12 29.52854 01 38 37.13 +39 35 16.4 18.8 RrEY097P93
K07Y56U KC2018 12 29.73243 01 42 16.56 +39 19 53.5 18.6 GVEY097595
K07Y56U KC2018 12 29.73902 01 42 23.27 +39 19 23.9 18.5 GVEY097595
K07Y56U KC2018 12 29.74561 01 42 29.96 +39 18 53.6 18.8 GVEY097595
K07Y56U KC2018 12 29.74840101 42 34.21 +39 18 28.5 18.7 GVEY097J95
K07Y56U KC2018 12 29.75078901 42 36.65 +39 18 17.6 18.6 GVEY097J95
K07Y56U KC2018 12 29.75478 01 42 40.68 +39 18 17.8 18.2 RtEY097B49
K07Y56U KC2018 12 29.75620 01 42 42.14 +39 18 11.9 18.3 RtEY097B49
K07Y56U KC2018 12 29.75729 01 42 43.23 +39 18 06.9 18.3 RtEY097B49
K07Y56U KC2018 12 29.76011701 42 46.17 +39 17 35.7 18.6 GVEY097J95
K07Y56U KC2018 12 29.76365001 42 49.78 +39 17 19.6 18.9 GVEY097J95
K07Y56U KC2018 12 29.78751001 43 13.03 +39 15 40.6 18.9 GVEY097587
K07Y56U KC2018 12 29.79080301 43 16.38 +39 15 25.2 19.0 GVEY097587
K07Y56U KC2018 12 29.79409601 43 19.76 +39 15 10.2 18.8 GVEY097587
K07Y56U KC2018 12 29.80504 01 43 30.95 +39 14 19.1 VEY097204
K07Y56U KC2018 12 29.80892 01 43 34.91 +39 14 00.8 VEY097204
K07Y56U KC2018 12 29.81286 01 43 38.92 +39 13 42.3 VEY097204
K07Y56U KC2018 12 29.81750 01 43 43.66 +39 13 20.3 VEY097204
K07Y56U KC2018 12 29.82194 01 43 48.18 +39 12 59.2 18.9 GVEY097204
K07Y56U KC2018 12 29.82845 01 43 56.02 +39 12 16.3 19.0 GVEY097Z99
K07Y56U KC2018 12 29.83110 01 43 58.77 +39 12 04.1 18.6 GVEY097Z99
K07Y56U KC2018 12 29.83375 01 44 01.46 +39 11 51.3 18.8 GVEY097Z99
K07Y56U KC2018 12 29.86583 01 44 33.18 +39 09 31.6 19.0 VqEY097C77
K07Y56U KC2018 12 29.87134 01 44 38.85 +39 09 05.2 19.1 VqEY097C77
K07Y56U KC2018 12 29.87692 01 44 44.58 +39 08 37.9 18.6 VqEY097C77
K07Y56U KC2018 12 30.04230 01 47 45.85 +38 55 44.0 18.7 GUEY097H36
K07Y56U KC2018 12 30.04354 01 47 47.12 +38 55 37.8 18.7 GUEY097H36
K07Y56U KC2018 12 30.04479 01 47 48.41 +38 55 31.6 18.7 GUEY097H36
K07Y56U KC2018 12 30.04604 01 47 49.69 +38 55 25.5 18.5 GUEY097H36
K07Y56U KC2018 12 30.74139 02 00 26.71 +37 54 37.6 18.2 RqEY097160
K07Y56U KC2018 12 30.74351 02 00 28.93 +37 54 25.7 18.2 RqEY097160
K07Y56U KC2018 12 30.74511 02 00 30.65 +37 54 17.0 18.2 RqEY097160
K07Y56U KC2018 12 30.74564 02 00 31.21 +37 54 14.0 18.3 RqEY097160
K07Y56U KC2018 12 30.74777 02 00 33.48 +37 54 02.4 18.4 RqEY097160
K07Y56U KC2018 12 30.74884 02 00 34.61 +37 53 56.3 18.2 RqEY097160
Observer details:
104 San Marcello Pistoiese. Observers P. Bacci, M. Maestripieri,
M. D. Grazia. Measurers P. Bacci, L. Tesi, G. Fagioli. 0.60-m reflector
+ CCD.
160 Castelmartini. Observers M. Jaeger, E. Prosperi, S. Prosperi,
W. Vollmann. Measurer E. Prosperi. 0.35-m f/10 Schmidt-Cassegrain + CCD.
204 Schiaparelli Observatory. Observer L. Buzzi. 0.60-m f/4.64 reflector +
CCD.
587 Sormano. Observers P. Sicoli, A. Testa, G. Ventre. Measurer P. Sicoli.
0.5-m f/6.8 reflector + CCD.
595 Farra dIsonzo. Observer E. Pettarin. 0.61-m f/4.5 reflector + CCD.
B49 Paus Observatory, Sabadell. Observer J. Camarasa. 0.30-m f/4 Newtonian
reflector + CCD.
C77 Bernezzo Observatory. Observer A. Mantero. 0.25-m f/1000.0 reflector +
CCD.
H36 Sandlot Observatory, Scranton. Observer G. Hug. 0.56-m reflector + 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. Observers K. Korlevic, V. Perovic, P. Kukic,
M. Nikic, F. Beceic. Measurer K. Korlevic. 1.0-m f/2.9 reflector + CCD.
P93 Space Tracking and Communications Center, JAXA. Observers A. Asami,
T. Nimura. 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.
Z99 Clixby Observatory, Cleethorpes. Observer A. Mickleburgh. 0.36-m f/8
Schmidt-Cassegrain + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or integer in degrees), reference and Delta-T
181228 T05 122- 52+ 181230 160 119- 50+ MPO132015 +26 day
Orbital elements:
2007 YU56 Earth MOID = 0.0498 AU
Epoch 2019 Apr. 27.0 TT = JDT 2458600.5 MPC
M 33.40644 (2000.0) P Q
n 0.26785868 Peri. 163.19511 +0.05901906 -0.97292290
a 2.3834108 Node 282.99033 +0.88748589 +0.15362910
e 0.5716998 Incl. 13.25803 +0.45703999 -0.17268218
P 3.68 H 22.2 G 0.15 U 1
Residuals in seconds of arc
071231 703 0.4+ 0.3+ 080114 291 0.4- 0.2+ 181229 B49 0.2+ 0.7-
071231 703 0.1- 0.2+ 080114 291 0.2- 0.0 181229 B49 0.4+ 0.1-
071231 703 0.9+ 0.9- 080119 448 1.3- 0.0 181229 B49 0.2+ 0.2-
071231 703 0.6+ 0.4+ 080119 448 (2.2- 0.1-) 181229 J95 0.2- 0.0
071231 703 0.3- 1.0+ 080119 448 0.2- 0.8- 181229 J95 0.1- 0.0
071231 703 0.6+ 0.9- 181228 T05 0.3- 0.3+ 181229 587 0.2- 0.3-
071231 703 1.1- 0.5+ 181228 T05 0.5+ 0.3- 181229 587 0.3- 0.4-
071231 703 0.8+ 0.3+ 181228 T05 0.1- 0.9- 181229 587 0.1+ 0.0
071231 703 0.2- 0.3- 181228 T05 0.4- 0.3- 181229 204 0.0 0.1+
071231 703 0.2- 0.4+ 181228 K38 0.0 0.2- 181229 204 0.0 0.0
071231 703 0.1- 0.4+ 181228 L01 0.3- 0.0 181229 204 0.1- 0.1+
071231 703 0.1- 0.8+ 181228 L01 0.0 0.1- 181229 204 0.0 0.0
080101 A13 1.3- 0.7+ 181228 L01 0.2+ 0.3+ 181229 204 0.1- 0.1-
080101 A13 (0.1+ 1.6-) 181228 L01 0.1+ 0.1+ 181229 Z99 0.7+ 0.0
080101 A13 (0.1+ 1.7-) 181228 L01 0.2+ 0.0 181229 Z99 1.1+ 0.3+
080101 A13 0.4- 1.0- 181228 K38 0.2+ 0.1+ 181229 Z99 0.8+ 0.0
080101 A13 0.5- 0.8- 181228 K38 0.0 0.2- 181229 C77 0.0 0.1-
080101 G96 0.7- 0.4- 181228 K88 0.4- 0.2+ 181229 C77 0.1+ 0.3+
080101 G96 0.2- 0.5- 181228 K88 0.4- 0.3+ 181229 C77 0.1+ 0.3+
080101 G96 0.8- 0.6- 181228 104 0.1- 0.2+ 181230 H36 0.0 0.5+
080101 G96 0.5- 0.5- 181228 104 0.2+ 0.2+ 181230 H36 0.0 0.3+
080102 595 0.2+ 0.1+ 181228 104 0.1+ 0.0 181230 H36 0.1+ 0.2+
080102 595 0.1- 0.7+ 181229 P93 0.4+ 0.4- 181230 H36 0.0 0.1+
080102 595 0.4- 1.1+ 181229 P93 0.3- 0.4- 181230 160 0.1+ 0.4+
080106 J95 0.8+ 0.3+ 181229 P93 0.2+ 0.3- 181230 160 0.3- 0.2+
080106 J95 0.3+ 0.3- 181229 P93 0.3+ 0.0 181230 160 0.0 0.3+
080106 J95 0.2+ 0.5- 181229 595 0.4- 0.1- 181230 160 0.1- 0.3+
080110 291 0.0 0.1+ 181229 595 0.2- 0.2+ 181230 160 0.0 0.5+
080110 291 0.0 0.2+ 181229 595 0.2- 0.1- 181230 160 0.1- 0.3+
080110 291 0.1+ 0.4+ 181229 J95 0.0 0.1-
080114 291 0.4- 0.1+ 181229 J95 0.0 0.2-
Ephemeris:
2007 YU56 a,e,i = 2.38, 0.57, 13 q = 1.0208
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2018 11 30 22 18 55.8 +42 55 28 0.2260 1.0632 103.8 64.3 21.4
...
2018 12 15 23 05 41.3 +43 43 12 0.1508 1.0263 102.0 69.8 20.6
...
2018 12 23 00 07 18.3 +43 30 47 0.1110 1.0207 106.5 67.5 19.8
...
2018 12 29 01 29 37.4 +40 11 47 0.08546 1.0234 115.8 59.9 19.1
2018 12 30 01 46 58.6 +38 59 12 0.08202 1.0244 118.0 57.9 18.9
2018 12 31 02 05 11.1 +37 30 13 0.07891 1.0256 120.5 55.7 18.8
...
2019 01 06 03 59 39.4 +22 27 52 0.07007 1.0359 137.3 40.1 18.1
...
2019 01 14 05 51 39.4 -00 36 37 0.08888 1.0580 145.5 31.8 18.4
...
2019 01 29 07 19 56.0 -16 22 27 0.1723 1.1220 139.8 34.5 20.1
A. U. Tomatic (C) Copyright 2018 MPC M.P.E.C. 2018-Y97
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