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Table 2

Absolute magnitude of Phobos in the four HRSC filters, following the IAU HG system.

Camera Filter λc (nm) λ (nm) H G Hlin β [mag deg−1] q
HRSC BL 444 76 12.280 0.024 12.813 0.03250 0.3064
HRSC GR 538 88 11.575 0.029 12.166 0.03119 0.3102
HRSC RE 748 48 10.732 0.026 11.417 0.02964 0.3078
HRSC IR 956 81 10.486 0.025 11.022 0.03073 0.3073

Notes. The phase integral (q), derived from the G parameter, is also reported.

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