Far-infrared photometric observations of the outer planets and satellites with Herschel-PACS

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Volume 588 (April 2016)

A&A, 588 (2016) A109

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Table 5

Summary of the motions, sizes, and separations of Callisto, Ganymede, Titan, Jupiter, and Saturn at start and end times of the PACS observations.

		dRA*cosD/dt^a	d(Dec)/dt^a	Ang-sep^b	Ang-diam^c
Object	Time	[′′/h]	[′′/h]	[′′]	[′′]

Callisto	2012 Jan. 20 05:30	17.21	7.73	361.0	1.37
	2012 Jan. 20 07:00	17.36	7.78	351.6	1.37
Ganymede	2012 Jan. 20 05:30	11.68	5.87	304.2	1.50
	2012 Jan. 20 07:00	12.28	6.10	303.1	1.50
Jupiter	2012 Jan. 20 05:30	11.48	5.18	–	40.73
	2012 Jan. 20 07:00	11.51	5.19	–	40.72

Titan	2012 Jun. 25 15:22	−0.27	0.05	183.1	0.758
	2012 Jun. 25 15:45	−0.25	0.05	183.1	0.758
Saturn	2012 Jun. 25 15:22	−0.18	−0.57	–	17.74
	2012 Jun. 25 15:45	−0.18	−0.57	–	17.74

Notes.

^(a)

The change rate of the target center apparent RA and Dec (airless). d(RA)/dt is multiplied by the cosine of the declination;

^(b)

target-primary angular separation. The angle between the center of target object and the center of the primary body it revolves around, as seen by the observer;

^(c)

the equatorial angular width of the target body full disk, if it were fully visible to the observer.

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