FOS CYCLE5: Location of Spectra and Wavelength Calibration - Blue Detector

Details FOS CYCLE5: Location of Spectra and Wavelength Calibration - Blue Detector FOS CYCLE5: Location of Spectra and Wavelength Calibration - Blue Detector

Jul 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995hst..prop.6166k&link_type=abstract

HST Proposal ID #6166

Physics

Hst Proposal Id #6166

Scientific paper

This proposal monitors the stability of the FOS wavelength scale and location of spectra. For the wavelength calibration, all standard gratings are used with the 0.3"circle and either the 0.1" or 0.25" paired apertures. The WAVECAL lamp has a fairly constant output, so that these data are a secondary monitor of any changes in the FOS internal sensitivity. For the y-base calibration we will obtain aperture maps to determine the locations of spectra and the corse aperture location for the 0.3" aperture for all grating settings. We will then measure the location of spectra for all the remaining science apertures using only the G190H or G400H gratings. Since we know that the FOS mechanisms are reasonably well aligned, the small number of observations should suffice and the difference in the location of the spectra should be solely due to the single versus the paired apertures. The program can be scheduled as an interleaver observation and should be repeated every month for a total of 12 times. It is necessary to conduct this test many times during the cycle since we know from previous cycles that the location of the spectra has changed with time. Total spacecraft time is 1 orbit of prime time and 96 orbits of NON-PRIME time. VISIT REQUIREMENT DISCUSSED WITH PC WHO WILL VERIFY TIMING LINKS.

Affiliated with

Also associated with

No associations

Rating

FOS CYCLE5: Location of Spectra and Wavelength Calibration - Blue Detector does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with FOS CYCLE5: Location of Spectra and Wavelength Calibration - Blue Detector, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and FOS CYCLE5: Location of Spectra and Wavelength Calibration - Blue Detector will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1171937