This data set contains the polarimetric results reported to the International Halley Watch (IHW) Photometry and Polarimetry Network (PPN) by the various participating observers. Only linear polarizations are reported. Both standard and non-standard broadband and narrowband filters were employed. A total of 752 observations are included spanning the period 13 September 1985 to 17 May 1986.

This data set presents polarimetric observations of comet 1P/Halley reported as normalized Stokes parameters. All data were contributed by a single observer, A. Dolphus, working at the European Southern Observatory. This revised version of the data set includes updated documentation and data formats.

This data set presents polarimetric observations of comet 1P/Halley reported as normalized Stokes parameters. All data were contributed by a single observer, A. Dolphus, working at the European Southern Observatory. This revised version of the data set includes updated documentation and data formats.

This data set contains all the infrared polarimetry data archived as part of the International Halley Watch (IHW) Infrared Studies Network (IRSN). Data span the period 21 Sep 1985 to 1 June 1986.

This data set contains all the infrared polarimetry data archived as part of the International Halley Watch (IHW) Infrared Studies Network (IRSN). Data span the period 21 Sep 1985 to 1 June 1986.

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 884 polarimetric observations for the Polarimetry Subnetwork. The majority of these observations (752) are expressed as 'percent polarization'. These data span the dates from 1985 September 13 through 1986 May 17.

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 884 polarimetric observations for the Polarimetry Subnetwork. The majority of these observations (752) are expressed as 'percent polarization'. These data span the dates from 1985 September 13 through 1986 May 17.

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.

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.

This data set presents the fluxes derived from narrow band photometry of Comet 1P/Halley as part of the International Halley Watch (IHW) Photometry and Polarimetry Netword (PPN). Standard filters, reference stars and reduction procedures were used as far as possible to reduce all narrowband data submitted to the PPN. The original data have been reformatted data supplied as addenda to the original submission have been added and the accompanying documentation updated in this revised version.