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Table 1

Summary of the Herschel-PACS and Herschel-HIFI observations of Saturn and the relevant observation geometry.

Start date 2010-12-31 03:33:17 Date for computations 2010-12-31 03:40:00
OD 596 Ang. Diam. 17.20′′
Obs. ID 1342212192 λobs 226.63°
Δt (s) 744 ϕobs 12.42°
Instrument HIFI λ 231.99°
Frequency 1097.365 GHz ϕ 9.28°
aNP 357.29°

Start date 2011-01-02 10:32:21 Date for computations 2011-01-02 10:47:00
OD 598 Ang. Diam. 17.26′′
Obs. ID 1342212275 λobs 288.72°
Δt (s) 1693 ϕobs 12.46°
Instrument PACS λ 294.11°
Wavelength 66.44 μm ϕ 9.32°
aNP 357.30°

Notes. OD means Herschel operational day, Δt is the total integration time. Ang. Diam. is Saturn’s equatorial angular diameter, λobs and ϕobs are the longitude and latitude (respectively) of the sub-observer point, λ and ϕ are the longitude and latitude, respectively, of the subsolar point, aNP is the north polar angle. The solar longitude of Saturn (LS) is 17°. All latitudesin this table are planetographic and all longitudes are System III west longitudes. The physical parameters of Saturn (right column) were obtained from the JPL/Horizons database.

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