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Proceedings Paper

The NIRSpec MSA Planning Tool for multi-object spectroscopy with JWST
Author(s): Diane Karakla; Alexander Shyrokov; Klaus Pontoppidan; Tracy Beck; Karoline Gilbert; Jeff Valenti; Susan Kassin; David Soderblom
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Paper Abstract

The James Webb Space Telescope Near-Infrared Spectrograph (NIRSpec) instrument will offer a powerful multi-object spectroscopic capability enabled by the micro-shutter arrays (MSAs). The MSAs are fixed grids of configurable shutters that can be opened and closed on astronomical scenes. With this mode, the NIRSpec instrument can observe more than 100 targets simultaneously. The NIRSpec team and software developers at the Space Telescope Science Institute (STScI) have been implementing specialized algorithms in an MSA Planning Tool (MPT) to facilitate the complex observation planning process. Two main algorithms, the “Fixed Dithers” and “Flexible Dithers” algorithms, have been defined to achieve optimal multiplexing results with different observing strategies. The MPT is available to the astronomical community as part of the ASTRONOMER’S PROPOSAL TOOL (APT), an integrated software package for the preparation of observing proposals developed by STScI.

Paper Details

Date Published: 6 August 2014
PDF: 14 pages
Proc. SPIE 9149, Observatory Operations: Strategies, Processes, and Systems V, 91491Z (6 August 2014); doi: 10.1117/12.2056387
Show Author Affiliations
Diane Karakla, Space Telescope Science Institute (United States)
Alexander Shyrokov, Space Telescope Science Institute (United States)
Klaus Pontoppidan, Space Telescope Science Institute (United States)
Tracy Beck, Space Telescope Science Institute (United States)
Karoline Gilbert, Space Telescope Science Institute (United States)
Jeff Valenti, Space Telescope Science Institute (United States)
Susan Kassin, Space Telescope Science Institute (United States)
David Soderblom, Space Telescope Science Institute (United States)


Published in SPIE Proceedings Vol. 9149:
Observatory Operations: Strategies, Processes, and Systems V
Alison B. Peck; Chris R. Benn; Robert L. Seaman, Editor(s)

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