[Iaude] MPEC S87: 2017 FR90 [a=2.36,e=0.83,i=26.0,H=17.2]
mpec at mpcdb1.cfa.harvard.edu
mpec at mpcdb1.cfa.harvard.edu
Wed Sep 20 10:31:20 EDT 2017
M.P.E.C. 2017-S87 Issued 2017 Sept. 20, 14:27 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 at CFA.HARVARD.EDU
URL http://www.minorplanetcenter.net/ ISSN 1523-6714
2017 FR90
Revision to MPEC 2017-F140
Additional Observations:
K17F90R C2017 09 19.49670 08 57 24.77 +34 20 11.5 20.7 RoES087926
K17F90R C2017 09 19.50100 08 57 25.16 +34 20 11.0 21.3 RoES087926
K17F90R C2017 09 20.49540 08 59 00.56 +34 16 49.3 20.8 RoES087926
K17F90R C2017 09 20.50027 08 59 01.02 +34 16 48.2 20.5 RoES087926
K17F90R C2017 09 20.50515 08 59 01.46 +34 16 47.2 20.7 RoES087926
Observer details:
926 Tenagra II Observatory. Observers M. Schwartz, P. R. Holvorcem. Measurer
M. Schwartz. 0.81-m f/7 Ritchey-Chretien + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc, reference and Delta-T
170919 926 1.4+ 3.6+ 170920 926 1.0+ 3.7+ MPO405698 -0.00058 day
Orbital elements:
2017 FR90 Earth MOID = 0.4050 AU
Epoch 2017 Sept. 4.0 TT = JDT 2458000.5 MPC
M 20.84458 (2000.0) P Q
n 0.27190972 Peri. 353.22988 +0.79822251 +0.55900909
a 2.3596788 Node 329.15484 -0.53010411 +0.47500555
e 0.8292274 Incl. 25.95348 -0.28606022 +0.67961649
P 3.62 H 17.2 G 0.15 U 3
Residuals in seconds of arc
170323 F51 0.0 0.1+ 170325 E23 0.6+ 0.9- 170401 I47 0.1- 0.1+
170323 F51 0.0 0.1+ 170325 E23 0.3- 0.3+ 170401 I47 0.1- 0.1+
170323 F51 0.0 0.1+ 170325 E23 0.4+ 0.1+ 170404 F51 0.1+ 0.1+
170324 807 0.2+ 0.1- 170325 E23 0.1- 0.3- 170404 F51 0.1- 0.0
170324 807 0.0 0.2- 170327 807 0.1+ 0.0 170404 F51 0.0 0.1+
170324 807 0.2+ 0.1- 170327 807 0.1+ 0.0 170411 W88 0.1+ 0.0
170324 807 0.2+ 0.0 170327 807 0.1- 0.2+ 170411 W88 0.0 0.5-
170324 807 0.0 0.0 170327 807 0.2+ 0.2- 170412 W88 0.2- 0.2-
170324 568 0.0 0.0 170327 807 0.0 0.1- 170412 W88 0.0 0.2+
170324 568 0.0 0.0 170327 I47 0.3+ 0.3+ 170412 W88 0.4- 0.1-
170324 568 0.0 0.1- 170327 I47 0.3+ 0.2- 170422 T12 0.0 0.3+
170324 568 0.1+ 0.1- 170327 I47 0.3+ 0.1+ 170422 T12 0.0 0.3+
170324 568 0.1+ 0.1- 170328 W88 0.2+ 0.2+ 170504 474 0.2+ 0.1-
170324 568 0.0 0.0 170328 W88 0.5+ 0.1+ 170504 474 0.2+ 0.4+
170325 I47 0.1- 0.1+ 170329 W88 0.1- 0.1- 170504 474 0.2+ 0.2-
170325 I47 0.1+ 0.2+ 170329 W88 0.1- 0.4- 170504 474 0.1- 0.3+
170325 I47 0.3+ 0.1+ 170331 W88 0.1- 0.2- 170919 926 0.2+ 0.1-
170325 807 0.1+ 0.1- 170331 W88 0.9- 0.4- 170919 926 0.1- 0.2+
170325 807 0.0 0.1- 170331 Y00 0.3- 0.3- 170920 926 0.0 0.2+
170325 807 0.1+ 0.0 170331 Y00 0.4- 0.4+ 170920 926 0.0 0.0
170325 807 0.1- 0.1- 170331 Y00 0.5- 0.2- 170920 926 0.3- 0.1-
170325 807 0.2- 0.2- 170401 I47 0.1+ 0.2-
Ephemeris:
2017 FR90 a,e,i = 2.36, 0.83, 26 q = 0.4030
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2017 08 21 07 57 26.1 +36 17 19 1.9492 1.2878 36.6 28.0 20.4
...
2017 09 05 08 31 12.5 +35 16 04 2.0535 1.4930 43.5 27.7 20.9
...
2017 09 13 08 46 22.6 +34 43 55 2.0887 1.5962 47.7 27.8 21.1
...
2017 09 19 08 56 36.2 +34 21 55 2.1062 1.6709 51.2 27.9 21.2
2017 09 20 08 58 12.9 +34 18 30 2.1084 1.6832 51.8 28.0 21.2
2017 09 21 08 59 48.0 +34 15 10 2.1104 1.6954 52.4 28.0 21.2
...
2017 09 27 09 08 46.4 +33 56 58 2.1182 1.7673 56.1 28.1 21.3
...
2017 10 05 09 19 19.2 +33 38 23 2.1180 1.8601 61.4 28.2 21.4
...
2017 10 20 09 34 43.5 +33 25 35 2.0885 2.0253 72.5 28.0 21.6
A. U. Tomatic (C) Copyright 2017 MPC M.P.E.C. 2017-S87
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