MPEC 2023-J178 : S/2020 S 9
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M.P.E.C. 2023-J178 Issued 2023 May 15, 18:52 UT
The Minor Planet Electronic Circulars contain information on unusual
minor planets, routine data on comets and natural satellites,
and occasional editorial announcements. 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
S/2020 S 9
Satellite of Saturn
Observations:
SK20S090 4C2019 08 23.25515 19 05 27.49 -21 58 19.6 cEJ178T14
SK20S090 4C2019 08 23.31720 19 05 26.77 -21 58 21.0 cEJ178T14
SK20S090 4C2019 08 23.34267 19 05 26.47 -21 58 21.5 cEJ178T14
SK20S090 4C2019 08 26.26326 19 04 54.95 -21 59 34.7 cEJ178T14
SK20S090 4C2019 08 26.29190 19 04 54.64 -21 59 35.4 cEJ178T14
SK20S090 4C2019 08 27.24434 19 04 45.05 -21 59 58.3 cEJ178T14
SK20S090 4C2019 08 27.30733 19 04 44.39 -21 59 59.7 cEJ178T14
SK20S090 4C2019 09 03.24114 19 03 44.67 -22 02 29.2 cEJ178T14
SK20S090 4C2019 09 03.28418 19 03 44.34 -22 02 30.3 cEJ178T14
SK20S090*RC2020 06 27.45932 20 07 04.58 -20 26 42.4 26.1 wcEJ178568
SK20S090 RC2020 06 27.52228 20 07 03.57 -20 26 46.4 25.9 wcEJ178568
SK20S090 RC2020 06 28.44303 20 06 48.98 -20 27 46.2 cEJ178568
SK20S090 RC2020 06 28.50594 20 06 47.97 -20 27 50.2 cEJ178568
SK20S090 RC2020 06 28.53740 20 06 47.46 -20 27 52.1 25.8 wcEJ178568
SK20S090 RC2020 07 20.43194 20 00 30.08 -20 52 18.5 cEJ178568
SK20S090 RC2020 07 20.45769 20 00 29.61 -20 52 20.3 cEJ178568
SK20S090 RC2020 08 16.36475 19 53 04.17 -21 19 07.9 26.0 wcEJ178568
SK20S090 RC2020 08 16.40484 19 53 03.60 -21 19 09.9 25.8 wcEJ178568
Observer details:
568 Maunakea. Observers E. J. Ashton, B. J. Gladman, J.-M. Petit, M.
Alexandersen. Measurer E. J. Ashton. 3.5-m Canada-France-Hawaii
Telescope + CCD.
T14 Canada-France-Hawaii Telescope, Maunakea. Observers E. J. Ashton, B. J.
Gladman, J.-M. Petit, M. Alexandersen. Measurer E. J. Ashton. CFHT 3.5m
+ CCD.
Orbital elements:
S/2020 S 9
Epoch 2023 Feb. 25.0 TT = JDT 2460000.5 Alexandersen
M 239.84680 (2000.0) P Q
n 0.22999748 Peri. 195.22566 -0.88664911 -0.40922688
a 0.1738007 Node 41.57781 -0.38311174 +0.91085734
e 0.5206104 Incl. 161.06237 -0.25899565 +0.05359360
P 4.29 H 16.0 P/d 1565.23
From 18 observations 2019 Aug. 23-2020 Aug. 16, mean residual 0".15
Residuals in seconds of arc
190823 T14 0.2+ 0.2- 190827 T14 0.2- 0.1- 200628 568 0.1+ 0.1-
190823 T14 0.3+ 0.1+ 190903 T14 0.2- 0.2+ 200628 568 0.2+ 0.0
190823 T14 0.3+ 0.2+ 190903 T14 0.2- 0.0 200720 568 0.0 0.3+
190826 T14 0.1- 0.0 200627 568 0.0 0.0 200720 568 0.0 0.2+
190826 T14 0.2- 0.0 200627 568 0.1+ 0.1+ 200816 568 0.2- 0.1-
190827 T14 0.0 0.2- 200628 568 0.2- 0.2- 200816 568 0.1+ 0.1-
M. P. C. Staff (C) Copyright 2023 MPC M.P.E.C. 2023-J178
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