Calibration and flight performance of the long-slit imaging dual order spectrograph

TL;DR

This paper reports on the calibration and flight performance of LIDOS, a rocket-borne UV spectrograph with dual detectors, demonstrating its capabilities in observing UV-bright objects and nebulosity across three flights.

Contribution

It provides the first detailed calibration and flight performance data for the LIDOS instrument, highlighting its large dynamic range and dual detector system.

Findings

Successful calibration of image quality and detector efficiencies.

Effective on-board calibration using an electron-impact lamp.

Consistent performance across three flights.

Abstract

We present a preliminary calibration and flight performance of the Long-Slit Imaging Dual Order Spectrograph (LIDOS), a rocket-borne instrument with a large dynamic range in the 900 - 1700A bandpass. The instrument observes UV-bright objects with a CCD channel and fainter nebulosity with an MCP detector. The image quality and the detector quantum efficiencies were determined using the calibration and test equipment at the Johns Hopkins University, and further monitored using an on-board electron-impact calibration lamp. We review results from each of the three flights of the instrument.