λ=189ﾟLs,   (ω=288°~292°, 299°~303°W,   φ=19°S),   δ=11.3",   ι=43°

Note:
ω = 288°~292°W
SPC clear, faint SPC hollow ("Life Saver Effect"). NPR HAZY. MH from 30S to NPR. Bright EC over Libya & Crocea. MC SW limb in Argyre. Bright MC over Edom. Syrtis Major well defined, broad and dark. Syrtis Minor dark, well-defined. SW-Hellas dark, faint haze or cloud?? Zea Lacus faint, BC =1.
  Seeing = 8 - 9. Transparency 5, Altitude 37°. Moon nearby.

ω = 299°~303°W
SPC clear, faint SPC hollow ("Life Saver Effect"). NPR HAZY. EH MH from 30S to NPR. Bright EC over Libya & Crocea. MC SW limb in Argyre. Bright MC over Edom. Syrtis Major well defined, broad and dark. Syrtis Minor dark, well-defined. SW-Hellas dark, faint haze or cloud?? Zea Lacus faint, BC =1. Moon close by. Mars changed little in an hour.
  Seeing = 9. Transparency 4 - 5, Altitude 42°. Moon nearby.

41cm f /6.9 Newtonian, 520x
Wratten Filters: W23A, W25, W33, W57, W64, W38A, W47.

The Beish Observatory is located (81°19'34.7"W, 27°21'07.1"N) at Lake Placid, FL, USA.