IHW COMET HALLEY NON_DIGITAL PHOTOGRAPHIC MATERIAL V1.0

NASA's International Halley Watch (IHW) has created a Comet Halley Archive. The collection of data spans the full wavelength range as submitted by scientists to the IHW. The observations belong to one of the following Disciplines: Amateur, Astrometry, Infrared Studies, Large-Scale Phenomena, Meteor Studies, Near-Nucleus Studies, Photometry and Polarimetry, Radio Studies, and Spectroscopy and Spectrophotometry. The data collected by these nine disciplines were augmented by Spacecraft measurements. The data were submitted to IHW, but the evaluation and selection for the Archive has been the primary responsibility of the Discipline Specialist Teams for each network in cooperation with the Lead Center. The data from the Amateur Observation Network contains 2170 entries of photographic materials. The data files (which are kept at JPL) consist of five types as follows: contact prints, negatives, prints, slides, and transparencies through 1988 February 16.