MPEC 2019-A146: 2017 YZ1
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M.P.E.C. 2019-A146 Issued 2019 Jan. 10, 11:33 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 YZ1
Revision to MPEC 2017-Y79
Additional Observations:
K17Y01Z C2012 10 17.33397623 57 15.500+47 44 31.64 21.9 GVEA146F51
K17Y01Z C2012 10 17.34640823 57 14.138+47 44 16.63 22.7 GVEA146F51
K17Y01Z C2012 10 24.31876723 46 31.661+45 13 41.42 22.4 GVEA146F51
K17Y01Z C2012 10 24.33116723 46 30.644+45 13 24.58 22.1 GVEA146F51
K17Y01Z C2012 10 26.32123623 44 04.899+44 26 49.67 22.8 GVEA146F51
K17Y01Z C2012 10 26.33219423 44 04.081+44 26 34.12 22.0 GVEA146F51
K17Y01Z C2014 11 25.60978910 23 44.314+04 26 39.03 22.5 GVEA146F51
K17Y01Z C2014 11 25.62078610 23 46.004+04 26 14.18 22.1 GVEA146F51
K17Y01Z C2014 11 27.61597810 29 02.359+03 09 12.93 22.6 GVEA146F51
K17Y01Z C2014 11 27.63654810 29 05.543+03 08 24.48 22.2 GVEA146F51
K17Y01Z C2014 11 27.64687510 29 07.184+03 08 00.02 22.3 GVEA146F51
K17Y01Z KC2014 12 18.61853611 30 23.834-13 14 35.42 22.4 GVEA146F51
K17Y01Z C2014 12 20.63681711 37 09.389-15 05 44.82 21.6 GVEA146F51
K17Y01Z C2014 12 20.64276211 37 10.567-15 06 04.50 21.6 GVEA146F51
Observer details:
F51 Pan-STARRS 1, Haleakala. Observers J. Bulger, K. Chambers, T. Lowe,
E. Magnier, A. Schultz, M. Willman. Measurers S. Chastel, M. Huber,
Y. Ramanjooloo, R. Wainscoat, R. Weryk. 1.8-m Ritchey-Chretien + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc, reference and Delta-T
121017 F51 13.7- 6.7- 141220 F51 10.2- 6.3+ MPO451933 -0.0015 day
Orbital elements:
2017 YZ1 PHA, Earth MOID = 0.0003 AU
Epoch 2019 Apr. 27.0 TT = JDT 2458600.5 MPC
M 250.64932 (2000.0) P Q
n 0.64460565 Peri. 298.39700 -0.75026991 +0.55895372
a 1.3272110 Node 277.75195 -0.40937700 -0.81212716
e 0.3347785 Incl. 20.87540 -0.51913923 -0.16739243
P 1.53 H 20.4 G 0.15 U 1
Residuals in seconds of arc
121017 F51 0.2- 0.1- 171228 691 0.1- 0.2+ 180109 T12 0.0 0.0
121017 F51 0.1+ 0.4- 171228 691 0.1+ 0.1- 180109 T12 0.0 0.0
121024 F51 0.1- 0.1- 171228 691 0.0 0.3- 180109 T12 0.0 0.0
121024 F51 0.0 0.2+ 171229 291 0.0 0.1- 180109 T12 0.0 0.0
121026 F51 0.1- 0.1+ 171229 291 0.3+ 0.1- 180109 T12 0.0 0.0
121026 F51 0.2- 0.2+ 171229 291 0.1+ 0.3+ 180109 T12 0.0 0.0
141125 F51 0.1- 0.0 171230 F51 0.1- 0.1- 180109 T12 0.0 0.1+
141125 F51 0.2- 0.2+ 171230 F51 0.0 0.1- 180116 Y28 0.0 0.2-
141127 F51 0.2+ 0.1- 171230 F51 0.2- 0.2+ 180116 Y28 0.0 0.0
141127 F51 0.1- 0.0 171230 F51 0.1+ 0.1- 180116 Y28 0.1- 0.2-
141127 F51 0.4+ 0.2- 171231 807 0.0 0.2- 180116 807 0.0 0.1+
141218 F51 0.1+ 0.3- 171231 807 0.1+ 0.2- 180116 807 0.0 0.0
141220 F51 0.1+ 0.1- 171231 807 0.1- 0.0 180116 807 0.2- 0.0
141220 F51 0.0 0.1+ 171231 695 0.1+ 0.1- 180117 807 0.1- 0.3+
171220 G96 0.1- 0.2+ 171231 695 0.0 0.1- 180117 807 0.1+ 0.8+
171220 G96 0.0 0.0 171231 695 0.0 0.3- 180117 807 0.2+ 0.3+
171220 G96 0.6- 0.7+ 171231 695 0.1- 0.4+ 180121 807 0.0 0.0
171220 G96 0.2- 0.0 171231 695 0.1- 0.4+ 180121 807 0.1- 0.1+
171220 G96 0.2- 0.3+ 171231 695 0.1+ 0.2+ 180121 807 0.2+ 0.2-
171220 G96 0.7- 0.6+ 171231 695 0.3+ 0.1+ 180209 807 0.0 0.1+
171220 G96 0.2+ 0.1- 171231 695 0.1+ 0.1- 180209 807 0.5+ 0.3+
171220 G96 0.1+ 0.3+ 171231 695 0.1+ 0.1+ 180209 807 0.0 0.9+
171221 G96 0.3+ 0.3- 180101 807 0.1- 0.1- 180211 474 0.2- 0.1-
171221 G96 0.6+ 1.0- 180101 807 0.4- 0.2- 180211 474 0.2- 0.1-
171221 G96 0.2+ 0.2- 180101 807 0.0 0.0 180211 474 0.1- 0.2+
171223 807 0.0 0.0 180104 807 0.0 0.2- 180211 474 0.1- 0.1+
171223 807 0.4- 0.1+ 180104 807 0.3- 0.1- 180603 291 0.0 0.6+
171223 807 0.1- 0.1- 180104 807 0.2+ 0.1- 180603 291 0.1+ 0.3+
171223 V06 0.2+ 0.1+ 180108 807 0.3+ 0.2- 180603 291 2.0+ 0.2-
171223 V06 0.1+ 0.0 180108 807 0.1- 0.2- 180604 291 0.1+ 0.5+
171223 V06 0.0 0.1- 180108 807 0.0 0.2- 180604 291 0.2- 0.5+
171223 V06 0.1+ 0.0 180109 I52 0.5- 0.5+ 180701 695 0.1- 0.3+
171224 V06 0.3- 0.9+ 180109 I52 0.1- 0.2- 180701 695 0.1- 0.4+
171224 V06 0.7- 0.2- 180109 T12 0.0 0.0 180807 711 0.1- 0.2+
171224 V06 0.7- 0.4+ 180109 T12 0.0 0.1+ 180807 711 0.2- 0.3+
171224 V06 0.1- 0.4- 180109 T12 0.0 0.0 180807 711 0.3- 0.2+
171224 I52 0.1- 0.0 180109 T12 0.0 0.0
171224 I52 0.1- 0.1- 180109 T12 0.0 0.0
Ephemeris:
2017 YZ1 a,e,i = 1.33, 0.33, 21 q = 0.8829
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2018 12 11 22 48 41.2 +19 23 57 1.4129 1.7597 92.7 34.0 23.8
...
2018 12 26 23 16 03.7 +18 40 25 1.5735 1.7691 84.2 33.6 24.0
...
2019 01 03 23 31 27.8 +18 36 01 1.6583 1.7713 79.8 33.1 24.1
...
2019 01 09 23 43 19.8 +18 39 57 1.7209 1.7715 76.5 32.7 24.2
2019 01 10 23 45 19.9 +18 41 09 1.7313 1.7715 76.0 32.6 24.2
2019 01 11 23 47 20.4 +18 42 30 1.7416 1.7714 75.4 32.5 24.2
...
2019 01 17 23 59 31.4 +18 53 30 1.8025 1.7701 72.2 31.9 24.3
...
2019 01 25 00 16 05.9 +19 14 58 1.8812 1.7667 68.0 31.1 24.3
...
2019 02 09 00 48 09.9 +20 11 06 2.0192 1.7548 60.3 29.2 24.4
A. U. Tomatic (C) Copyright 2019 MPC M.P.E.C. 2019-A146
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