MPEC 2017-T25 : 2017 SP21
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M.P.E.C. 2017-T25 Issued 2017 Oct. 7, 22:16 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 SP21
Observations:
K17S21P* C2017 09 30.46820 00 40 09.48 +29 01 07.4 18.6 VqET025G96
K17S21P C2017 09 30.46861 00 40 09.66 +29 00 25.0 qET025G96
K17S21P C2017 09 30.46902 00 40 09.90 +28 59 43.2 18.6 VqET025G96
K17S21P C2017 09 30.48999 00 40 21.26 +28 24 58.9 18.7 VqET025G96
K17S21P C2017 09 30.49034 00 40 21.44 +28 24 26.3 18.9 VqET025G96
K17S21P C2017 09 30.49068 00 40 21.64 +28 23 49.8 18.4 VqET025G96
K17S21P C2017 09 30.49103 00 40 21.84 +28 23 15.1 18.6 VqET025G96
K17S21P KC2017 09 30.91203 00 45 51.44 +17 38 37.0 17.4 oET025K88
K17S21P KC2017 09 30.91476 00 45 52.15 +17 34 44.3 17.7 oET025K88
K17S21P KC2017 09 30.91749 00 45 52.83 +17 30 50.4 17.5 oET025K88
K17S21P C2017 10 01.10528 00 48 09.69 +13 14 06.3 18.3 VqET025G96
K17S21P C2017 10 01.10576 00 48 09.92 +13 13 28.2 18.4 VqET025G96
K17S21P C2017 10 01.10625 00 48 10.04 +13 12 50.8 18.4 VqET025G96
K17S21P C2017 10 01.10699 00 48 10.44 +13 11 53.7 18.0 VqET025G96
K17S21P KC2017 10 01.25911900 48 26.43 +09 57 14.9 18.7 VuET025H21
K17S21P KC2017 10 01.26135500 48 26.76 +09 54 28.4 18.5 VuET025H21
K17S21P KC2017 10 01.26403600 48 27.17 +09 51 09.5 18.7 VuET025H21
K17S21P KC2017 10 01.26671700 48 27.57 +09 47 50.1 18.8 VuET025H21
K17S21P KC2017 10 01.26939600 48 27.96 +09 44 31.3 18.8 VuET025H21
K17S21P KC2017 10 01.27207600 48 28.36 +09 41 12.4 18.7 VuET025H21
K17S21P KC2017 10 01.27475800 48 28.77 +09 37 53.7 18.6 VuET025H21
K17S21P KC2017 10 01.27789000 48 29.23 +09 34 01.9 18.6 VuET025H21
K17S21P KC2017 10 01.89790 00 52 40.23 -01 28 22.9 18.3 VqET025595
K17S21P KC2017 10 01.90132 00 52 40.65 -01 31 31.2 18.5 VqET025595
K17S21P KC2017 10 01.90642 00 52 41.23 -01 36 09.5 18.8 VqET025595
K17S21P KC2017 10 01.98104 00 52 44.32 -02 43 03.7 18.5 oET025K88
K17S21P KC2017 10 01.98421 00 52 44.65 -02 45 50.2 18.5 oET025K88
K17S21P KC2017 10 01.98738 00 52 44.99 -02 48 36.1 18.6 oET025K88
K17S21P C2017 10 02.20427 00 54 19.96 -05 45 34.2 20.0 RoET025926
K17S21P C2017 10 02.20552 00 54 20.06 -05 46 33.3 19.9 RoET025926
K17S21P C2017 10 02.20678 00 54 20.14 -05 47 33.4 20.1 RoET025926
Observer details:
595 Farra d'Isonzo. Observer E. Pettarin. 0.61-m f/4.0 reflector + CCD.
926 Tenagra II Observatory. Observers M. Schwartz, P. R. Holvorcem. Measurer
M. Schwartz. 0.81-m f/7 Ritchey-Chretien + CCD.
G96 Mt. Lemmon Survey. Observers J. A. Johnson, D. C. Fuls. Measurers
E. J. Christensen, D. C. Fuls, A. R. Gibbs, A. D. Grauer, J. A. Johnson,
R. A. Kowalski, S. M. Larson, G. J. Leonard, R. G. Matheny, R. L. Seaman,
F. C. Shelly. 1.5-m reflector + 10K CCD.
H21 Astronomical Research Observatory, Westfield. Observer R. Holmes.
Measurers S. Foglia, L. Buzzi, T. Linder, R. Holmes. 0.76-m f/3.0
astrograph + CCD.
K88 GINOP-KHK, Piszkesteto. Observers O. Hanyecz, K. Sarneczky. Measurer
K. Sarneczky. 0.60-m Schmidt + CCD.
Orbital elements:
2017 SP21 Earth MOID = 0.0084 AU
Epoch 2017 Sept. 4.0 TT = JDT 2458000.5 MPC
M 66.47558 (2000.0) P Q
n 1.01243567 Peri. 69.94133 -0.20523379 +0.97831262
a 0.9822554 Node 188.36492 -0.95440121 -0.20638885
e 0.1409370 Incl. 11.09348 -0.21678888 -0.01755180
P 0.97 H 27.8 G 0.15 U 6
Residuals in seconds of arc
170930 G96 0.3+ 1.3+ 171001 G96 0.2+ 0.5- 171001 595 0.6- 0.2+
170930 G96 0.1- 0.2- 171001 G96 0.8- 0.4+ 171001 595 0.2+ 0.8-
170930 G96 0.2+ 1.1- 171001 G96 1.0+ 1.2+ 171001 595 0.8+ 0.3-
170930 G96 0.2- 0.5+ 171001 H21 0.1- 0.0 171001 K88 0.4- 0.3+
170930 G96 (0.4- 2.6+) 171001 H21 0.1- 0.0 171001 K88 0.1- 0.2+
170930 G96 0.3- 0.1- 171001 H21 0.1+ 0.4+ 171001 K88 0.4+ 0.4+
170930 G96 0.3- 0.1- 171001 H21 0.2+ 0.2+ 171002 926 0.3- 0.1+
170930 K88 0.2+ 0.4- 171001 H21 0.1+ 0.2+ 171002 926 0.1- 0.1+
170930 K88 0.2+ 0.0 171001 H21 0.1+ 0.1- 171002 926 0.2- 0.4-
170930 K88 0.3- 0.9- 171001 H21 0.2+ 0.2-
171001 G96 0.6- 0.0 171001 H21 0.1+ 0.3-
Ephemeris:
2017 SP21 a,e,i = 0.98, 0.14, 11 q = 0.8438
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2017 09 07 13 11 53.3 +51 12 21 0.09640 0.9520 52.4 123.0 27.7
...
2017 09 22 13 27 55.0 +61 46 59 0.03471 0.9889 63.8 114.4 24.9
...
2017 09 30 00 34 13.5 +42 09 03 0.0085141.0081 140.5 39.2 19.0
...
2017 10 06 01 03 07.5 -29 37 48 0.02663 1.0217 145.1 34.0 21.4
2017 10 07 01 04 16.1 -32 05 57 0.03067 1.0239 142.4 36.6 21.8
2017 10 08 01 05 10.5 -33 58 16 0.03476 1.0261 140.2 38.6 22.1
...
2017 10 14 01 08 02.6 -39 24 20 0.05983 1.0389 132.5 45.1 23.5
...
2017 10 22 01 09 43.8 -41 11 04 0.09393 1.0547 127.2 48.7 24.6
...
2017 11 06 01 14 29.2 -39 55 05 0.1587 1.0803 120.4 52.3 25.9
A. U. Tomatic (C) Copyright 2017 MPC M.P.E.C. 2017-T25
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