Table 4
Hapke (2012) parameters found from the disk-resolved photometry of three regions of interest on Phobos.
| ROIs | Obs. | Latitude | Longitude | ω | 𝑔 | B0 | h |  (deg) |
Por. (%) |
|---|---|---|---|---|---|---|---|---|---|
| Stickney rim | SRC | 1°N – 14°N | 26°W – 32°W | 0.092 ± 0.001 | −0.267 | 2.02 ± 0.05 | 0.062 ± 0.001 | 24 | |
| Limtoc | SRC | 8°S – 15°S | 57°W – 61°W | 0.087 ± 0.003 | −0.267 | 2.01 ± 0.07 | 0.056 ± 0.001 | 24 | |
| Stickney floor | SRC | 5°S – 10°N | 40°W – 60°W | 0.059 ± 0.001 | −0.267 | 2.65 ± 0.03 | 0.061 ± 0.001 | 24 | |
| ROIs | Obs. | pυ (%) | Bond alb. (%) | ω | 𝑔 | B0 | h |  (deg) |
Por. (%) |
| Stickney rim | Green | 8.37 ± 0.05 | 1.87 ± 0.02 | 0.085 ± 0.001 | −0.292 ± 0.004 | 2.02 | 0.062 | 20.6 ± 1.3 | 86.3 |
| Limtoc | Green | 7.38 ± 0.07 | 1.63 ± 0.02 | 0.075 ± 0.001 | −0.294 ± 0.005 | 2.01 | 0.056 | 24.4 ± 1.6 | 87.5 |
| Stickney floor | Green | 6.57 ± 0.05 | 1.18 ± 0.02 | 0.055 ± 0.001 | −0.296 ± 0.005 | 2.65 | 0.061 | 18.2 ± 1.8 | 86.5 |
Notes. The SRC data were acquired during the orbit numbered K076. For the SRC data photometric model, 
and 𝑔 were fixed to the value found from HRSC disk-resolved analysis in the green filter (Table 3), while for the HRSC green filter data model, the opposition parameters were fixed to the value determined with SRC. The latitude and longitude coordinates of defined ROIs are also reported for the SRC observations, and the ROIs are the same in the green filter. The term Por. indicates the surface porosity, and pυ indicates the geometric albedo.
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