1. Introduction
v6.2.2
- 1. Introduction
- 1.1 SOFIA and Its Instruments
- 1.2 Observing on an Aircraft
- 1.2.1 Scheduling and Flight Planning
- 1.2.2 Acquisition and Guiding
- 1.2.3 Observing Moving Targets
- 1.2.4 Line-of-Sight (LOS) Rewinds
- 1.3 Performing Background Limited Observations
- 1.3.1 Chopping and Nodding
- 1.3.1.1 Symmetric and Asymmetric Chopping Techniques
- 1.3.1.1a Symmetric Chopping Variations
- 1.3.1.1b Asymmetric Chopping Variations
- 1.3.1.1 Symmetric and Asymmetric Chopping Techniques
- 1.3.2 Alternatives to Chop-Nod Cycles
- 1.3.1 Chopping and Nodding
