Operational performance of the TIMED Doppler Interferometer (TIDI)

Wilbert R. Skinner; Rick J. Niciejewski; Timothy L. Killeen; Stanley C. Solomon; Daniel Gablehouse; Qian Wu; David Ortland; David A. Gell; Alan R. Marshall; Edwin Wolfe Jr.; Marie Cooper; Julie F. Kafkalidis

doi:10.1117/12.503727

3 November 2003 Operational performance of the TIMED Doppler Interferometer (TIDI)

Wilbert R. Skinner, Rick J. Niciejewski, Timothy L. Killeen, Stanley C. Solomon, Daniel Gablehouse, Qian Wu, David Ortland, David A. Gell, Alan R. Marshall, Edwin Wolfe Jr., Marie Cooper, Julie F. Kafkalidis

Author Affiliations +

Proceedings Volume 5157, Optical Spectroscopic Techniques and Instrumentation for Atmospheric and Space Research V; (2003) https://doi.org/10.1117/12.503727
Event: Optical Science and Technology, SPIE's 48th Annual Meeting, 2003, San Diego, California, United States

Abstract

The TIMED Doppler Interferometer (TIDI) is a Fabry-Perot interferometer designed to measure winds in the mesosphere and thermosphere (60-180 km) as part of the TIMED mission. TIDI is a limb viewer and observes emissions from OI 557.7 nm and rotational lines in the O₂(0-0) Atmospheric band. Wind measurement accuracies approach 3 ms^-1 in the mesosphere and 15 ms^-1 in the thermosphere. The TIDI instrument’s performance during the first year and a half of operation is discussed in this paper. Many subsystems are working as designed. The thermal control system is holding the instrument temperatures at their desired set-points. The CCD detector is working as expected with no changes observed in the gain, bias or read noise. The instrument suffers from a light leak that causes the background to be elevated and increases the uncertainty in the wind measurement. Nothing can be done to eliminate this problem but modeling of the background has eliminated any systematic effect. Water outgassing from the spacecraft or instrument has deposited as ice on some part of the optics and reduced the instrument’s sensitivity. This problem has been reduced by two spacecraft rolls which pointed the TIDI radiator to view more of the earth causing the optics to warm up and sublimate much of the ice.

Citation Download Citation

Wilbert R. Skinner, Rick J. Niciejewski, Timothy L. Killeen, Stanley C. Solomon, Daniel Gablehouse, Qian Wu, David Ortland, David A. Gell, Alan R. Marshall, Edwin Wolfe Jr., Marie Cooper, and Julie F. Kafkalidis "Operational performance of the TIMED Doppler Interferometer (TIDI)", Proc. SPIE 5157, Optical Spectroscopic Techniques and Instrumentation for Atmospheric and Space Research V, (3 November 2003); https://doi.org/10.1117/12.503727

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available