Withdraw
Loading…
Calibration of the Ultraviolet Cameras on NASA’s Carruthers Geocorona Observatory
Zhang, Alex
Content Files

Loading…
Download Files
Loading…
Download Counts (All Files)
Loading…
Edit File
Loading…
Permalink
https://hdl.handle.net/2142/124786
Description
- Title
- Calibration of the Ultraviolet Cameras on NASA’s Carruthers Geocorona Observatory
- Author(s)
- Zhang, Alex
- Issue Date
- 2023-05-01
- Keyword(s)
- Remote sensing, Exosphere, Optical Sensor Calibration, UV Emission
- Date of Ingest
- 2024-10-04T11:03:51-05:00
- Abstract
- The Carruthers Geocorona Observatory is NASA’s first mission dedicated to investigating the fundamental nature of Earth’s outermost atmospheric layer known as the exosphere. The Carruthers mission’s primary payload is the GeoCoronal Imager, which consists of two co-aligned imagers (channels) for simultaneous, column-volume sensing of ultraviolet emission by exospheric hydrogen atoms. These images will be used to determine the spatial structure and temporal variability of the exosphere on global scales, but a prerequisite of that analysis is isolation of the target emission from instrument and scene backgrounds as well as calibration of the absolute photometric sensitivity of the cameras. This thesis develops the calibration algorithms that will be used for mission data analysis, including: (i) bias and dark current estimation and subtraction, (ii) estimation and subtraction of energetic particle radiation backgrounds, (iii) background photon scene gradient detection and removal, and (iv) flat-fielding. The algorithms are validated using a synthetic image model to measure their accuracy and precision, while laboratory calibration data is used to verify instrument performance against design requirements.
- Type of Resource
- text
- Genre of Resource
- dissertation/thesis
- Language
- eng
Owning Collections
Senior Theses - Electrical and Computer Engineering PRIMARY
The best of ECE undergraduate researchManage Files
Loading…
Edit Collection Membership
Loading…
Edit Metadata
Loading…
Edit Properties
Loading…
Embargoes
Loading…