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APO

For the near-IR portion of the dataset I turn to the readily available ARC 3.5 m telescope. The instrument of choice is clearly the Grism Infrared Imager (GRIM II), which has sensitivity from 1-2.5 . This region offers the possibility of probing many different levels since it overlaps methane bands of varying strength, as well as having regions where no significant opacity is accumulated until the incoming solar radiation encounters the methane cloud at 1 bar. GRIM II allows three imaging scales, but f/10 is necessary to fully make use of limb-brightening. The f/10 mode allows a scale of 0.24/pixel, which is similar to the maximum zoom possible with MIRAC2.



Charles Walter
Thu May 18 17:57:23 MDT 1995