SPIRE PACS Parallel Mode Observers' Manual
		Next

SPIRE PACS Parallel Mode Observers' Manual

Announcement of Opportunity for Open Time

version 2.1, 4-October-2011

HERSCHEL-HSC-DOC-0883, Version 2.1

4-October-2011

Revision History
Revision v1.0	01-Feb-2007	RV
Initial version
Revision v1.1	04-June-2007	RV
Updates for KPGT Phase 2
Revision v2.0	14-May-2010	LC
Updates for AO-1
Revision v2.1	4-October-2011	LC
Updates for AO-2

Table of Contents

1. Introduction

1.1. Purpose of document

1.2. Background

1.2.1. Mission characteristics
1.2.2. Parallel Mode science instruments in a nutshell

1.3. Acronyms

2. Observing in SPIRE PACS Parallel Mode

2.1. Definition of Parallel Mode

2.2. Scientific benefits of Parallel Mode

2.2.1. Shallow galactic surveys
2.2.2. Deep galactic surveys
2.2.3. Deep extragalactic surveys
2.2.4. Additional benefits of Parallel Mode

2.3. Parallel Mode sensitivities

2.4. SPIRE PACS Parallel Mode AOT

2.4.1. Scan mapping mode
2.4.2. Setting up AOT parameters

3. Changes to the document

List of Figures

2.1. Herschel focal plane
2.2. HSpot window for setting up Parallel Mode AOR
2.3. Parallel Mode scanning scheme
2.4. Parallel Mode footprint image example as displayed in HSpot. NGC 7293 is imaged in "Nominal" scan direction with a coverage area of 54'x72'. A comparison between observer's requested area and real instrument coverages is presented in Figure 2.6.
2.5. Parallel Mode footprint image example as displayed in HSpot. NGC 7293 is imaged in "Nominal" plus "Orthogonal" scan directions. However, the "Length" and "Height" parameters are the same in the 2 AORs (instead of being inverted): the result is that the area covered by both instruments, in both directions, is only 54'x54' (see Figure 2.7).
2.6. SPIRE (darker area, shift to left) and PACS coverage maps, normalized to 1, as obtained from observation of NGC 7293 in "Nominal" scan direction only. Overplotted in green is the original observer requested area of 54'x72'.
2.7. SPIRE (darker area, shift to left) and PACS coverage maps, normalized to 1, as obtained from observation of NGC 7293 in "Nominal" and "Orthogonal" scan directions. Overplotted in green is guaranteed area observed by both instruments, in both scanning direction. Since the "Length" and "Height" parameters were the same in the 2 AORs, this area corresponds to a square of 54'x54'.
2.8. SPIRE coverage comparison between single-scan (figure behind) and cross-scans (figure in front) Parallel Mode observations. Note the better coverage of the latter, especially if some pixels have been masked out during data reduction (circled area).

List of Tables

2.1. The SPIRE PACS Parallel Mode 1-σ instrument noise for a point source, calculated for the two scan speeds and for a single map coverage. Units are mJy in beam.
2.2. Observer input parameters for SPIRE PACS Parallel Mode AOT.

		Next
		Chapter 1. Introduction