PHT Instrument Page

Last Update: 19 July 2005

ISO | CAM | LWS | PHT | SWS

We recommend the ISO Handbook, Volume IV: PHT--The Imaging Photo-Polarimeter as a general reference point. Latest updates and further details on calibration can also be found in technical notes and publications available below.

Highly Processed Data Products (HPDP)

Some observations taken in specific observing modes have been fully reprocessed in a systematic way by experts after the release of the last Off-Line Processing pipeline (v10) released in 2003 and are now made available as 'Highly Processed Data Products' through the ISO Data Archive interface.

The following reprocessed data sets are available containing PHT observations made with ISO and are recommended for scientific usage:

Reprocessed PHT22 minimaps of normal stars, June 2003, A. Moór et al.
Reprocessed PHT22 minimaps of Solar System objects, Octubre 2003, A. Moór et al.
Reprocessed PHT22 minimaps of evolved stars, January 2004, A. Moór et al.
Reprocessed PHT22 minimaps of miscellaneous objects, January 2004, A. Moór et al.

Basic PHT Information

ISO Handbook, Volume IV: PHT--The Imaging Photo-Polarimeter, Version 2.0.1 (14/Apr/2004)
ISOPHOT Calibration Accuracies , Version 5.0 (adapted to OLP 10) (07/May/2002)
Version 10.1 of the ISO Off-Line Processing (OLP) software released (20/Nov/2001)
Report on the Scientific Validation of PHT OLP Version 10.0 (09/Apr/2002)
ISOPHOT - capabilities and performance, Lemke D. et al., A&A, 315, L64-L70 (1996).

Data Analysis

ISOPHOT Interactive Analysis (PIA) Homepage (10/Jul/2000)
Data reduction and analysis of SSO observations (02/Jul/1999)
SWS vs PHT-S Convolution Tool (08/Nov/2000)

For a first look at the products please take a look at Chapter 11: Getting Started of the ISO Handbook, Volume IV: PHT--The Imaging Photo-Polarimeter together with the IPAC ISO First Look Tools

Calibration

Different aspects of the ISOPHOT calibration, which may be of relevance to future space missions are addressed in detail in the following papers:

"The Pre-Flight Calibration of the ISOPHOT Instrument" - D. Lemke & J. Wolf
"ISOPHOT In-flight Calibration Strategies" - U. Klaas et al.
"ISOPHOT Point Source Calibration - Wrapping it Up" - B. Schulz
"Analysis of ISOPHOT Chopped Observations" - P. Ábrahám et al.
"In-orbit Calibration of ISOPHOT-S" - J. Acosta-Pulido & P. Ábrahám
"Absolute Surface Brightness Photometry with ISOPHOT" - Ph. Héraudeau et al.
"Straylight in ISOPHOT?" - D. Lemke et al.
"Photometric Mapping with ISOPHOT using the "P32" Astronomical Observation Template" - R.Tuffs & C. Gabriel

Additional PHT Documents

These additional PHT documents describe aspects of the instrument in some detail and only need to be read for a deep understanding of a particular aspect. But be aware that the reports sometimes reflect "work in progress" and may have been superseded.

See also the proceedings of several ISO Conferences and Meetings for specific instrument related topics.

PHT Institute Links

The ISOPHOT Data Centre
at the Max Planck Institut für Astronomie (MPIA) in Heidelberg, Germany.
in conjunction with the Instituto de Astrofísica de Canarias (IAC), Spain
and in collaboration with the ISOPHOT Hungarian Subnode (Konkoly Observatory)