Accession Number:
ADA089724
Title:
Further Assessment of Infrared Data From Aircraft and Rocket Probes.
Descriptive Note:
Final rept. 1 Dec 78-31 Oct 79,
Corporate Author:
PHOTOMETRICS INC LEXINGTON MA
Personal Author(s):
Report Date:
1979-11-30
Pagination or Media Count:
134.0
Abstract:
Measurements from an aircraft and rockets of the yield of 2.8-3.1 micrometers-band photons from air irradiated by ionizing particles are evaluated. The night-time column emission in aurora, viewed from below by a sensitive radiometer with less than 1 km field of view, is found to be temporally-spatially correlated with the column energy input to within a few sec and a few km. The equilibrium chemiluminous efficiency in the SWIR band, measured with lower-resolution instruments in several hr of flight, shows statistically-significant variations of about a factor two data from 1976 missions, reported in HAES 79, lie in a narrower range. Its mean value is very near that expected from laboratory and HAES rocket measurements. Altitude profiles of the SWIR photon yield from two DNAAFGL rockets have a pronounced minimum near 110 km altitude, qualitatively similar to that predicted by models of collisional quenching of vibrationally-excited nitric oxide molecules by oxygen atoms. Preliminary results of the aircrafts photometric including airglow-sensitive video and radiometric measurements on the ionospheric plasma depleton produced by release of H2 and H20 from an Atlas Centaur rocket engine are presented.
Descriptors:
- *NUCLEAR EXPLOSION SIMULATION
- *INFRARED RADIATION
- *IONOSPHERIC MODIFICATION
- MEASUREMENT
- AIRCRAFT
- MOLECULAR VIBRATION
- PLASMAS(PHYSICS)
- EMISSION SPECTRA
- ATOMS
- PROFILES
- PHOTONS
- AURORAE
- ALTITUDE
- RADIOMETRY
- ROCKETS
- INFRARED SPECTROMETERS
- DAYLIGHT
- SOUNDING ROCKETS
- PARTICLE COLLISIONS
- PHOTOMETRY
- CHEMILUMINESCENCE
- QUENCHING(INHIBITION)
Subject Categories:
- Atmospheric Physics
- Test Facilities, Equipment and Methods
- Optics