[BLANK] reported aerial observation — November 15, 1965

Talbot reported that since there was no record of large balloons being launched on that date, visibility through the cold did not appear to be possible. Lally reported that Raven Industries had been selected to manufacture the balloons and that Raven will provide several chase vehicles and will fly the balloons remotely and logistically arrange for a flight to make a non-domestic and logistical arrangement and to select sites as planned. 3: It was moved and seconded that the Panel notes with interest the NCAR proposal for a project to be carried out this fall. 4: It was moved and seconded that the Panel recommends developing future plans on a regular basis. The Panel then observed that there will be a notable eclipse during 1966 and discussed the possibility for use of balloons, including tethered balloons, for an expedition during the eclipse. 6: It was moved and seconded that NCAR make informal inquiry as to progress of the tethered balloon project at NOPS with a possible view toward future cooperation. 7: It was moved and seconded that NCAR take note that a very suspicious total eclipse will occur in May 1966 in South America and the South Atlantic which will offer possibilities for good eclipse observations by balloonborne instruments. Following the discussion of NCAR actions on previous Panel recommendations, the Panel returned to Agenda Item 1. 8: It was regularly moved and seconded that the minutes of the previous meeting be accepted as read. Motion passed unanimously. Actual gratings (single passed) have a theoretical resolution of the order of 150,000 at 2.5 microns and 300,000 at 1.25 micron, but it seems difficult (even with the Jungfraujoch installation) to reach easily these values, due to the limitation being given by the insufficient sensitivity of the detectors. The spectrometer, installed also vertically, parallel to the telescope, will be an Ebert-Fastie of 2.5 meters focal length, equipped with a Bausch and Lomb "echelle" grating of 102 x 205 mm, working at 63O, double-passed with an intermediary slit. Supporting case details: Reported special objects or artifacts: Binoculars or telescope