[Iaude] MPEC S241: 2017 SG20 [a=2.52,e=0.60,i=13.2,H=25.6]
mpec at mpcdb1.cfa.harvard.edu
mpec at mpcdb1.cfa.harvard.edu
Sat Sep 30 14:29:18 EDT 2017
M.P.E.C. 2017-S241 Issued 2017 Sept. 30, 18:25 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 SG20
Observations:
K17S20G* C2017 09 28.39414 00 50 44.56 -01 51 44.9 19.9 VqES241G96
K17S20G C2017 09 28.39940 00 50 46.50 -01 49 39.0 19.6 VqES241G96
K17S20G C2017 09 28.41478 00 50 52.16 -01 43 29.8 19.4 VqES241G96
K17S20G C2017 09 28.42004 00 50 54.10 -01 41 24.3 19.7 VqES241G96
K17S20G C2017 09 28.44994 00 51 05.35 -01 29 24.3 19.3 VqES241I52
K17S20G C2017 09 28.45035 00 51 05.51 -01 29 14.4 19.8 VqES241I52
K17S20G C2017 09 28.45076 00 51 05.62 -01 29 03.4 18.8 VqES241I52
K17S20G C2017 09 28.45118 00 51 05.81 -01 28 54.0 19.0 VqES241I52
K17S20G KC2017 09 29.01046 00 55 20.72 +02 24 49.3 18.8 oES241K88
K17S20G KC2017 09 29.01381 00 55 22.13 +02 26 17.6 18.9 oES241K88
K17S20G KC2017 09 29.01715 00 55 23.46 +02 27 45.5 18.8 oES241K88
K17S20G KC2017 09 29.24663700 57 16.29 +04 09 58.0 19.5 VuES241H21
K17S20G KC2017 09 29.24905600 57 17.32 +04 11 03.4 19.7 VuES241H21
K17S20G KC2017 09 29.25203600 57 18.56 +04 12 24.3 19.7 VuES241H21
K17S20G C2017 09 29.43267 00 58 39.04 +05 35 12.9 19.2 RoES241926
K17S20G C2017 09 29.43410 00 58 39.67 +05 35 52.5 19.2 RoES241926
K17S20G C2017 09 29.43556 00 58 40.29 +05 36 32.7 19.3 RoES241926
K17S20G KC2017 09 29.91263 01 02 56.37 +09 22 41.8 18.8 oES241K88
K17S20G KC2017 09 29.91561 01 02 57.79 +09 24 09.3 18.6 oES241K88
K17S20G KC2017 09 29.98943 01 03 34.59 +10 00 35.8 19.9 UES241104
K17S20G KC2017 09 29.99266 01 03 36.13 +10 02 11.6 19.1 UES241104
K17S20G KC2017 09 29.99590 01 03 37.69 +10 03 47.3 19.4 UES241104
K17S20G KC2017 09 29.99914 01 03 39.20 +10 05 23.3 19.4 UES241104
K17S20G KC2017 09 30.02495 01 03 48.96 +10 17 46.1 19.4 RqES241585
K17S20G KC2017 09 30.02599 01 03 49.47 +10 18 17.1 19.3 RqES241585
K17S20G KC2017 09 30.02625 01 03 49.59 +10 18 24.8 19.6 RqES241585
K17S20G KC2017 09 30.02670 01 03 49.83 +10 18 37.7 19.4 RqES241585
K17S20G KC2017 09 30.02742 01 03 50.19 +10 18 59.3 19.6 RqES241585
K17S20G C2017 09 30.22408 01 05 51.26 +11 58 12.1 qES241I52
K17S20G C2017 09 30.22517 01 05 51.84 +11 58 45.7 19.0 VqES241I52
K17S20G C2017 09 30.22627 01 05 52.37 +11 59 19.2 qES241I52
K17S20G C2017 09 30.22737 01 05 52.89 +11 59 52.8 qES241I52
Observer details:
104 San Marcello Pistoiese. Observers P. Bacci, M. Maestripieri. Measurers
P. Bacci, L. Tesi, G. Fagioli. 0.60-m reflector + CCD.
585 Kyiv comet station. Observer A. Baransky. 0.7-m f/4 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. Observer J. A. Johnson. 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.
I52 Steward Observatory, Mt. Lemmon Station. Observer R. A. Kowalski.
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. 1.0-m reflector + CCD.
K88 GINOP-KHK, Piszkesteto. Observers O. Hanyecz, K. Sarneczky. Measurer
K. Sarneczky. 0.60-m Schmidt + CCD.
Orbital elements:
2017 SG20 Earth MOID = 0.0366 AU
Epoch 2017 Sept. 4.0 TT = JDT 2458000.5 MPC
M 348.57870 (2000.0) P Q
n 0.24698004 Peri. 24.92486 +0.85251202 -0.52201969
a 2.5159083 Node 6.73240 +0.43301848 +0.67657638
e 0.5995476 Incl. 13.21939 +0.29277680 +0.51936485
P 3.99 H 25.6 G 0.15 U 7
Residuals in seconds of arc
170928 G96 0.0 0.4- 170929 H21 0.2- 0.2- 170929 104 0.5- 0.0
170928 G96 0.3+ 0.4- 170929 H21 0.1+ 0.3- 170930 585 0.3+ 0.4-
170928 G96 0.3+ 0.3+ 170929 H21 0.1+ 0.0 170930 585 0.2+ 0.2-
170928 G96 0.1+ 0.5- 170929 926 0.1- 0.3+ 170930 585 0.1+ 0.2-
170928 I52 0.2+ 0.1- 170929 926 0.0 0.4+ 170930 585 0.4+ 0.6-
170928 I52 0.2+ 0.1- 170929 926 0.3- 0.2+ 170930 585 0.4+ 0.3-
170928 I52 0.5- 1.0+ 170929 K88 0.2+ 0.6+ 170930 I52 0.2- 0.2-
170928 I52 0.0 0.3+ 170929 K88 0.2+ 0.6+ 170930 I52 0.3+ 0.2+
170929 K88 0.2- 0.6- 170929 104 0.3- 0.2- 170930 I52 0.0 0.2+
170929 K88 0.2+ 0.0 170929 104 0.2- 0.0 170930 I52 0.4- 0.4+
170929 K88 0.5- 0.4+ 170929 104 0.0 0.1-
Ephemeris:
2017 SG20 a,e,i = 2.52, 0.60, 13 q = 1.0075
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2017 08 31 23 44 39.6 -42 44 16 0.2270 1.1983 142.9 30.5 24.1
...
2017 09 15 00 03 16.1 -37 30 42 0.1224 1.1080 144.8 31.5 22.6
...
2017 09 23 00 23 26.6 -25 19 14 0.07269 1.0694 154.1 24.2 21.2
...
2017 09 29 00 55 18.2 +02 22 16 0.04447 1.0458 171.5 8.1 19.5
2017 09 30 01 03 39.8 +10 07 22 0.04176 1.0423 167.8 11.7 19.5
2017 10 01 01 13 26.9 +18 43 35 0.03999 1.0391 160.9 18.4 19.6
...
2017 10 07 03 08 15.9 +64 36 33 0.05064 1.0226 115.9 61.5 21.4
...
2017 10 15 08 03 35.7 +74 32 13 0.09227 1.0098 95.2 79.6 23.2
...
2017 10 30 10 13 52.5 +67 33 30 0.1787 1.0156 92.1 77.7 24.6
A. U. Tomatic (C) Copyright 2017 MPC M.P.E.C. 2017-S241
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