Rotational motion of Phobos | Astronomy & Astrophysics (A&A)

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Table 6

Frequency analysis in p₂.

j	Arg	Freq (rad/days)	Per (days)	Amp (deg)	Phase (deg)

1	F	19.7097	0.3188	1.0782	–134.60
2	2ψ − 2ϖ^∗′ − 2D + ℓ − 2ℓ′	7.4612	0.8421	0.0458	–172.69
3	F + ℓ	39.4041	0.1595	0.0104	–125.31
4	F − ℓ	0.0152	413.3561	0.0103	36.15
5	ϖ^∗′ + D + ℓ′	19.7021	0.3189	0.0091	174.87
6	2ψ − 2ϖ^∗′ − 2D − 2ℓ′	27.1557	0.2314	0.0080	–163.42
7	2ψ − 2ϖ^∗′ − 2D + F − 2ℓ′	7.4460	0.8438	0.0070	63.66
8	ϖ^∗′ + D + 2ℓ′	19.7112	0.3188	0.0065	11.31
9	ϖ^∗′ − D + ℓ′	19.6838	0.3192	0.0028	170.10
10	2ψ − 2ϖ^∗′ − 2D + F − ℓ − 2ℓ′	27.1405	0.2315	0.0025	72.94
11	ℓ	19.6945	0.3190	0.0024	99.77
12	2ψ − 2ϖ^∗′ − 2D + 2ℓ − 2ℓ′	12.2333	0.5136	0.0023	–178.04

Notes. The series are in cosine.

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