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 Photometry and Polarimetry Network collected 18495 fluxes for the Narrowband Photometry Subnetwork. These data span the dates from 1985 August 24 to 1987 March 04.

This data set presents the photometric magnitude measurements of 1P/Halley submitted to the International Halley Watch (IHW) Photometry and Polarimetry Network (PPN). Both broadband and narrowband magnitudes are included, with filter parameters for each measurement. In this second version, the FITS tables have been converted to flat ASCII, the PDS labels rewritten, a table combing all the measurements into a single, chronological set has been added, and known errata have been corrected.

This data set presents the photometry of comet 1P/Halley collected by the International Halley Watch (IHW) Infrared Studies Network (IRSN) over the period September 1984 to April 1988. Version 2 includes data submitted after the initial archive generation.

The Astrometry Net of the International Halley Watch (IHW) compiled astrometric observations of comet 1P/Halley from observations made by professional astronomers from ground-based observatories all over the world. The data set comprises 6475 astrometric observations over the period 16 Oct 1982 through 9 Jan 1989, in addition to 158 observations from the 1835 apparition and 1696 observations from the 1910 apparition. The data from previous apparitions was re-reduced using modern star catalogs.

The Astrometry Net of the International Halley Watch (IHW) compiled astrometric observations of comet 1P/Halley from observations made by professional astronomers from ground-based observatories all over the world. The data set comprises 6475 astrometric observations over the period 16 Oct 1982 through 9 Jan 1989, in addition to 158 observations from the 1835 apparition and 1696 observations from the 1910 apparition. The data from previous apparitions was re-reduced using modern star catalogs.

This data set presents images of the nucleus of comet 1P/Halley obtained by the various contributing observers of the International Halley Watch (IHW) Near-Nucleus Studies Network (NNSN) over the period 16 October 1982 to 12 April 1989. Observers around the world contributed to this data set, which consists of 3523 well-documented FITS images. The second version includes PDS format and standard updates, as well as correction of the various errata noted since the original publication.

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 Photometry and Polarimetry Network collected 3318 magnitudes for the Broadband Photometry Subnetwork. These data span the dates from 1981 December 02 to 1988 May 19.

This data set contains the infrared images collected and archived by the International Halley Watch (IHW) Infrared Studies Network (IRSN). Raw and calibrated data are included, as well as calibration observations of standard stars. These data have been reformatted and the accompanying documentation updated in this revised version.

This data set contains the infrared images collected and archived by the International Halley Watch (IHW) Infrared Studies Network (IRSN). Raw and calibrated data are included, as well as calibration observations of standard stars. These data have been reformatted and the accompanying documentation updated in this revised version.

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 Photometry and Polarimetry Network collected 132 observations for the Stokes Parameters Subnetwork. These data cover the date range from 1985 December 30 through 1986 April 16.