MPEC 2017-T26 : 2017 SQ21
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M.P.E.C. 2017-T26 Issued 2017 Oct. 7, 22:19 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 SQ21
Observations:
K17S21Q* C2017 09 30.54124 03 13 14.974+02 52 18.79 22.2 wLET026F51
K17S21Q C2017 09 30.55199 03 13 14.464+02 52 11.21 21.6 wLET026F51
K17S21Q C2017 09 30.56273 03 13 13.949+02 52 03.59 21.8 wLET026F51
K17S21Q C2017 09 30.57345 03 13 13.448+02 51 56.12 22.1 wLET026F51
K17S21Q ^C2017 10 01.28937 03 12 42.38 +02 43 29.3 21.2 RoET026695
K17S21Q ^C2017 10 01.29306 03 12 42.19 +02 43 26.5 20.9 RoET026695
K17S21Q ^C2017 10 01.29675 03 12 42.04 +02 43 23.9 20.8 RoET026695
K17S21Q KC2017 10 01.31008803 12 41.15 +02 43 13.1 22.0 VuET026H21
K17S21Q KC2017 10 01.31576403 12 40.87 +02 43 09.3 22.1 VuET026H21
K17S21Q KC2017 10 01.32184603 12 40.57 +02 43 05.1 21.9 VuET026H21
K17S21Q KC2017 10 01.32975403 12 40.18 +02 42 59.4 22.0 VuET026H21
K17S21Q C2017 10 01.55317 03 12 29.886+02 40 25.33 22.2 wLET026F51
K17S21Q C2017 10 01.56479 03 12 29.316+02 40 17.38 21.9 wLET026F51
K17S21Q C2017 10 01.57635 03 12 28.728+02 40 09.04 22.1 wLET026F51
K17S21Q C2017 10 01.58808 03 12 28.140+02 40 00.66 22.0 wLET026F51
K17S21Q ^C2017 10 05.29638 03 09 22.19 +01 56 55.6 20.4 RoET026695
K17S21Q ^C2017 10 05.29896 03 09 21.98 +01 56 53.9 20.0 RoET026695
K17S21Q ^C2017 10 05.30277 03 09 21.78 +01 56 51.0 20.2 RoET026695
Observer details:
695 Kitt Peak. Observers R. S. McMillan, J. V. Scotti, M. J. Brucker,
A. M. Paat, R. A. Mastaler. Measurers M. J. Brucker, R. A. Mastaler.
2.3-m f/9 reflector + CCD, 4-m f/2.8 reflector + CCD.
F51 Pan-STARRS 1, Haleakala. Observers J. Bulger, T. Lowe, 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. 1.3-m f/4.0
astrograph + CCD.
Orbital elements:
2017 SQ21 Earth MOID = 0.2014 AU
Epoch 2017 Sept. 4.0 TT = JDT 2458000.5 MPC
M 23.70150 (2000.0) P Q
n 0.27143526 Peri. 150.02891 +0.54608353 +0.83492909
a 2.3624278 Node 152.89330 -0.79536657 +0.54239113
e 0.4909978 Incl. 8.64072 -0.26303003 +0.09330212
P 3.63 H 20.1 G 0.15 U 7
Residuals in seconds of arc
170930 F51 0.0 0.0 171001 695 0.1+ 0.1+ 171001 F51 0.1+ 0.2+
170930 F51 0.0 0.0 171001 H21 0.1+ 0.2- 171001 F51 0.0 0.0
170930 F51 0.1- 0.0 171001 H21 0.0 0.0 171001 F51 0.0 0.1-
170930 F51 0.1+ 0.1+ 171001 H21 0.1- 0.1+ 171005 695 0.5+ 0.1+
171001 695 0.2- 0.3+ 171001 H21 0.1- 0.1- 171005 695 0.4- 0.1+
171001 695 0.3- 0.1+ 171001 F51 0.1- 0.1- 171005 695 0.1- 0.2-
Ephemeris:
2017 SQ21 a,e,i = 2.36, 0.49, 9 q = 1.2025
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2017 09 07 03 16 33.0 +07 14 13 0.7988 1.5293 115.2 36.6 22.0
...
2017 09 22 03 17 43.2 +04 32 50 0.7850 1.6199 129.4 28.6 21.9
...
2017 09 30 03 13 38.0 +02 58 45 0.7856 1.6695 137.9 23.7 21.8
...
2017 10 06 03 08 42.9 +01 48 59 0.7918 1.7071 144.4 19.9 21.8
2017 10 07 03 07 45.7 +01 37 39 0.7934 1.7133 145.5 19.3 21.7
2017 10 08 03 06 46.5 +01 26 26 0.7951 1.7196 146.6 18.7 21.7
...
2017 10 14 03 00 13.7 +00 22 19 0.8095 1.7574 152.9 15.0 21.7
...
2017 10 22 02 50 22.2 -00 51 00 0.8399 1.8078 160.1 10.8 21.7
...
2017 11 06 02 31 55.8 -02 14 50 0.9357 1.9022 161.6 9.5 22.0
A. U. Tomatic (C) Copyright 2017 MPC M.P.E.C. 2017-T26
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