Share Email Print

Proceedings Paper

Observing with FIFI-LS on SOFIA: time estimates and strategies to use a field imaging spectrometer on an airborne observatory
Author(s): Christian Fischer; Aaron Bryant; Siman Beckmann; Sebastian Colditz; Fabio Fumi; Norbert Geis; Thomas Henning; Rainer Hönle; Christof Iserlohe; Randolf Klein; Alfred Krabbe; Leslie W. Looney; Albrecht Poglitsch; Walfried Raab; Felix Rebell; Christopher Trinh
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

Observing on the Stratospheric Observatory for Infrared Astronomy (SOFIA) requires a strategy that takes the specific circumstances of an airborne platform into account. Observations of a source cannot be extended or shortened on the spot due to flight path constraints. Still, no exact prediction of the time on source is available since there are always wind and weather conditions, and sometimes technical issues. Observations have to be planned to maximize the observing efficiency while maintaining full flexibility for changes during the observation. The complex nature of observations with FIFI-LS - such as the interlocking cycles of the mechanical gratings, telescope nodding and dithering - is considered in the observing strategy as well. Since SOFIA Cycle 3 FIFI-LS is available to general investigators. Therefore general investigators must be able to define the necessary parameters simply, without being familiar with the instrument, still resulting in efficient and flexible observations. We describe the observing process with FIFI-LS including the integration time estimate, the mapping and dithering setup and aspects of the scripting for the actual observations performed in flight. We also give an overview of the observing scenarios, which have proven to be useful for FIFI-LS.

Paper Details

Date Published: 15 July 2016
PDF: 11 pages
Proc. SPIE 9910, Observatory Operations: Strategies, Processes, and Systems VI, 991027 (15 July 2016); doi: 10.1117/12.2232148
Show Author Affiliations
Christian Fischer, Deutsches SOFIA Institut (Germany)
Aaron Bryant, Institute of Space Systems, Univ. Stuttgart (Germany)
Siman Beckmann, Deutsches SOFIA Institut (Germany)
Sebastian Colditz, Deutsches SOFIA Institut (Germany)
Fabio Fumi, Institute of Space Systems, Univ. Stuttgart (Germany)
Norbert Geis, Max-Planck-Institute for Extraterrestrial Physics (Germany)
Thomas Henning, Max-Planck-Institute for Astronomy (Germany)
Rainer Hönle, Institute of Space Systems, Univ. Stuttgart (Germany)
Christof Iserlohe, Deutsches SOFIA Institut (Germany)
Randolf Klein, SOFIA-USRA, NASA Ames Research Ctr. (United States)
Alfred Krabbe, Deutsches SOFIA Institut (Germany)
Institute of Space Systems, Univ. Stuttgart (Germany)
Leslie W. Looney, Univ. of Illinois (United States)
Albrecht Poglitsch, Max-Planck-Institute for Extraterrestrial Physics (Germany)
Walfried Raab, ESTEC, European Space Agency (Netherlands)
Felix Rebell, Institute of Space Systems, Univ. Stuttgart (Germany)
Christopher Trinh, SOFIA-USRA, NASA Ames Research Ctr. (United States)

Published in SPIE Proceedings Vol. 9910:
Observatory Operations: Strategies, Processes, and Systems VI
Alison B. Peck; Robert L. Seaman; Chris R. Benn, Editor(s)

© SPIE. Terms of Use
Back to Top