ROUGH DRAFT authorea.com/17048

# Introduction

This document is organized in two parts: Data where the necessary calibration and science data are described and data processing where the flow of data and pipeline intermediate results are described.

# Daytime Calibration Data

The following data have generally been taken with the telescope parked in the SED Machine “stow position” (ADD COORDINATES HERE).

1. Dome flat field lamp (featureless incandescent; 2 min warmup)

2. Dome mercury arc lamp (2 min warmup)

3. Dome cadmium arc lamp (10 min warmup)

4. Dome xenon projector lamp (2 min warmup)

5. 0-second bias exposure

6. 120-s, 600-s Dark exposures

We need to experiment with the following data

1. Flat field data at a variety of telescope positions (for pixel flats w/ flexure correction)

2. More arc lamp data including: krypton, argon, neon, cadmium, and zinc

3. Take high-resolution spectra of He+Neon lamp with (say DBSP) to measure line ratios

4. Illuminate detector internal to instrument for pixel-level flat response.

• GAIN – The gain in $$e-$$/ADU of the observation. When the observation is gain adjusted the gain is set to 1.0 and the comment of the GAIN header is set to the old GAIN value.