The red light (Wratten 23A) image on the left was made on February 7, 1997 (Ls=75.07, De=22.12) at 06:25 UT (CM=044.7) by Carlos E. Hernandez (A.L.P.O. Mars Coordinator) using an 8-inch (20-cm) f/7.5 Newtonian reflector at 305x and 492x. The North Polar Cap (NPC) appears to have decreased in size and appears brilliant (10/10) with Ierne, an NPC remnant, visible towards the f. limb. The NPC appears to be surrounded by a dark (3/10) collar consisting of Ortygia, Baltia, Abalos, and Nerigos. Mare Acidalium appears prominently dark (3/10) on the CM, as well as Niliacus Lacus, with a very bright to extremely bright (8.5/10) oval-shaped cloud over Tempe apparently connecting to a bright to very bright (7-8/10) Achillis Pons. Tempe itself appears dusky to shaded (4-6/10). Cydonia appears shaded to bright (6.5/10). A bright to very bright (7-8/10) veil appears over the southern half of the Chryse-Xanthe region while the northern half appears shaded (6/10). Mare Erythraeum appears dark (3/10) on the CM apparently divided by a bright Eos. Margaritifer Sinus is visible p. the CM and appears to be partly obscured by an extremely bright evening limb haze (ELH) over Thymiamata. Sinus Meridiani appears surrounded by the ELH on the terminator. Aurorae Sinus appears dark (3/10) f. the CM with a dusky (4/10) Ganges extending from its Nf. end. Agathodaemon appears as a thin, dark (3/10) strip apparently connected to an equally dark Tithonius Lacus towards the Sf. limb. Solis Lacus appears dark (3/10) on the Sf. limb apparently connected to an equally dark Nectar. An extremely bright (9/10) morning limb haze (MLH) is visible apparently connected to an equally bright southern limb haze (SLH). An extremely bright (9/10) evening limb haze (ELH) is visible as well.
The blue (Wratten 38A) and blue-green (Wratten 64) image on the right depicts a very bright (8/10), curvilinear equatorial cloud band (ECB) over the northern half of the Chryse-Xanthe region. The ECB apparently connects extremely bright (9/10) MLH to an equally bright ELH. A bright to very bright (7.5/10) cloud is noted over Tempe and the f. half of Mare Acidalium. An extremely bright (9/10) southern limb haze is noted as well. Mare Acidalium appears dull (5/10) and diffuse to the north whereas Mare Erythraeum and Aurorae Sinus appear dull (5/10) to the south.
(Legend: N.=north, S.=south, p.=preceding, f.=following, Np.=north-preceding, Nf.=north-following, Sp.=south-preceding, Sf.=south-following)