Wavefront Control for a Segmented Deployable Space Telescope
By segmenting and folding the primary mirror, quite large telescopes can be packed into the nose cone of a rocket.
adaptive↗
Engineering topics
Bely, P.
Publications and source records attributed to Bely, P..
NGST OTA Optical Metrology Instrumentation and Conceptual Approaches
An Integrated Product Team (IPT) was formed to develop a detailed concept for optical test methodology for testing of the NGST individual primary, secondary and tertiary mirrors and the full telescope system on the ground. Optical testing is a significant cost driver therefore the testing has to understood in detailed fashion early. A brief summary of the preliminary metrology test plan at the mirror component and telescope system level is presented.
Keski-Kuha, R.↗
NGST Wavefront Control: Lessons Learned from DCATT and Nexu
Explore the source record for details and available documents.
NGST Wavefront Control NGST Lessons DCATT Nexu↗
The exo-zodiacal disk mapper
Zodiacal dust around neighboring stars could obscure the signal of terrestrial planets observed with the Terrestrial Planet Finder (TPF) if that dust is similar to that in the Solar System. Unfortunately, little is known about the presence, or frequency of occurrence of zodiacal dust around stars and so the relevance of zodiacal dust to the design of the TPF, or to the TPF mission, is unknown. It is likely that direct observation of zodiacal dust disks will be necessary to confidently determine the characteristics of individual systems. A survey of a large number of stars in the solar neighborhood that could be candidates for observation with TPF should be undertaken. We present a concept for a space mission to undertake a sensitive, large-scale survey capable of characterizing solar-system-like zodiacal dust around 400 stars within 20 pc of the Sun.
Petro, Larry↗
Wavefront Sensing and Control for a Next Generation Space Telescope
The Next Generation Space Telescope will provide more than ten times the collecting area of the Hubble Space Telescope in a package that fits into the shroud of an expendable launch vehicle. This paper illustrates the operation and performance expected for initial telescope alignment, segment phasing, and fine figure control for the NGST yardstick design.
wavefront↗