ISO Workshop on Solar System Objects

(10-12 May 1999, ESAC, Madrid, Spain)

A view of Comet Hale-Bopp over the Villafranca's Castle in February 1997.
Kodak 100 ASA print film, exposure time 30s, 50mm lens at f4.


This workshop will bring together the ISO observers working on solar system programmes with experts in instrument calibration and data reduction for an exchange on the latest calibration updates, advanced data processing techniques and also latest results on solar system studies. In addition, we have a number of facilities which you can use to reduce and fine tune your data with support from the staff at the Data Centre.

Bearing in mind the specific needs in data reduction of ISO's solar system observations, our initial objective for this workshop is to support the finalisation of data reduction of individual observing programmes for presentations at the two major conferences on solar system objects this year:

  • Asteroids, Comets, Meteors meeting in July (Ithaca, New York)
  • Division of Planetary Sciences meeting in October (Padova, Italy)
  • Also, one should not forget that by August 1999 all ISO data will have become public.

    After evaluating all replies from the "First Announcement" we made the following decision:

  • The scientific sessions are open to all solar system related topics, including Planets, Satellites, Asteroids and Comets, observations and modeling.
  • The technical sessions about instrumental effects, calibration, data reduction will focus only on point- or point like sources, observed with ISOCAM and/or ISOPHOT.

  • The spectrometer data will be treated separately, either in special workshops or on individual basis. Observations of extended sources, like zodiacal light, comet coma, comet trails, etc. will be included in a later workshop, foreseen to take place in September 1999 in VILSPA.

    Time and Location:

    The workshop will take place from 10-12 May 1999 at ESA's satellite tracking station (VILSPA) in Villafranca del Castillo, near Madrid (Spain). The sessions will start at 9:00h and end at 17:00h on all three days. Workshop participants who wish to stay longer for extra data processing are welcome to do so, please note this under "comments/wishes" in the registration form. Since our computer facilities for visitors are limited we allow only for a total of 15 participants maximum.


    The deadline for registration will be 9 Apr 1999. Please complete the registration form below and send it back to "" before 9 Apr 1999.

       Registration Form
    1)  Name:
        Phone:                        Fax:
    2)  Do you wish to work on your own data?     Yes/No
        If 'Yes', give OBSID, PROPID and OBSMODE:
    3)  Do you wish to present some (preliminary) ISO results?   Yes/No
        If 'Yes', give author(s), title and a short abstract.
           (Presentations should include: short overview of
            the programme, the goals and the scientific outcome.
            The data reduction status and the problems should
            also be mentioned. Total time: 15-20 min)
    4)  Comments/wishes:

    Final Agenda:

    (Last updated: 7 May 1999)

    Monday 10-May: SCIENCE

    0915 - 0945 Welcome and Introduction Organizers, VILSPA
    0945 - 1015 Overview of ISO SSO Observations Th. Encrenaz, Paris-Meudon
    1015 - 1200 ASTEROIDS
    Thermal IR Spectrophotometry of Near-Earth Asteroids A. Harris, Berlin
    ROSETTA Asteroidal Targets S. Fornasier, Padova
    + + + COFFEE + + +
    The Lightcurve of Vesta in the FIR B. Schulz, VILSPA
    ISO Observations of Hygiea M. Breitfellner, VILSPA
    Thermophysical Modelling of Asteroids T. Mueller, VILSPA
    1200 - 1300 + + + Meeting with Local Press + + +
    1300 - 1400+ + + LUNCH + + +
    1400 - 1420 ISO Archive Demonstration T. Prusti, VILSPA
    Titan Observations with ISO A. Coustenis, Paris-Meudon
    The spectrum of Mars in the 20-45 micron range Th. Encrenaz, Paris-Meudon
    ISOLWS Observations of Mars M.Burgdorf, VILSPA
    Vega Phenomenon and the Relation between Planets and Dust Disks G. Decin, Leuven
    + + + COFFEE + + +
    1545 - 1630 COMETS
    Coma and Trails Analysis of Comets E. Epifani, Naples
    Comet Photometry S. Peschke, VILSPA
    ISOPHOT Measurements of Dust Emitted From Periodic Comets 126P/IRAS (1996) and 2P/Encke (1997) C. Lisse, Maryland
    1630 - 1700 TECHNICAL PART
    ISO Pointing and SSO Tracking, seen by SWS A. Salama, VILSPA
    SSO pointing/tracking Examples T. Mueller, VILSPA

    Tuesday, 11-May: ISOPHOT

    0915 - 1045 PHT Overview: Instrumental Effects and Calibration B. Schulz, VILSPA
    PIA Overview: Data Processing of P03,P05,P22,P25,P40 C. Gabriel, VILSPA
    Lessons learnt from PHT data reduction of Comet observations S. Peschke, VILSPA
    1045 - 1100+ + + COFFEE + + +
    1100 - 1300 Hands on PHT Data
    1300 - 1400+ + + LUNCH + + +
    1400 - 1700 Hands on PHT Data

    Wednesday, 12-May: ISOCAM

    0915 - 1030 ISOCAM OVERVIEW
    Data Processing with the Pipeline and CIA S. Ott, VILSPA
    Calibration of Instrumental Effects, Data processing for SSOs R. Siebenmorgen, VILSPA
    1030 - 1045+ + + COFFEE + + +
    1045 - 1300 Hands on CAM Data
    1300 - 1400+ + + LUNCH + + +
    1400 - 1600 Hands on CAM Data
    1600 - 1700 Workshop Summary


    Participants of the "ISO Workshop on Solar System Objects" with the "Castillo de Villafranca (XV century)" in the background.
    Participants of the ISO Workshop on Solar System Objects

    From left to right: Jean Matagne, Casey Lisse, Bernhard Schulz, Astrid Heske, Alan Harris,
    Alberto Salama, Athena Coustenis, Sonia Fornasier, Sibylle Peschke, Greet Decin, Carlos Gabriel, Michel Breitfellner,
    Kieron Leech, Elena Epifani, Rene Laureijs, Thomas Müller, Martin Burgdorf.


    Thomas Mueller
    Astrid Heske
    Martin Burgdorf
    Michel Breitfellner (Helpdesk)
    Jean Matagne (WWW)