Monthly monitoring of the feature using an all-sky system can provide useful information about the time-variability of the lunar atmosphere.
The nighttime airglow observations were carried out at Allahabad, using an all-sky imager, between January and May 2008.
Nightglow observations of OH Meinel bands (wavelength spread = 550.0 nm-4.4 μm) were carried out at a tropical station, K.S.K.G.R.L. Allahabad, India using an all-sky CCD-based imaging system.
Optical observations of nighttime airglow were carried out using an all-sky imaging camera that is collocated with the Jicamarca radar.
We observed nighttime 630-nm airglow by using a highly sensitive all-sky imager (#13) at Kototabang, Indonesia [geographic latitude (GLAT): (0.2^circ{text{S}}); geographic longitude (GLON): (100.3^circ{text{E}}); and geomagnetic latitude (MLAT): (10.0^circ{text{S}})].
More importantly, we were able to detect events occurring late at night, which allowed us to examine the bottomside dynamics using an airglow all-sky camera.
However, the TID-triggered three-dimensional electron density structures are hardly known by using 630-nm all-sky images and GPS-TEC observations.
Using a collocated all-sky airglow camera, we also investigate the state of the bottomside F-region prior to ESF.
Among the most significant astronomical observations performed by AKARI, an all-sky survey with FIS and IRC has been carried out: referred to as the AKARI All-Sky Survey.
The red vertical lines indicate the Akasofu initial brightening (AIB; 2124:50 UT) and the poleward expansion (2127 50 UT) identified by using all-sky images (ASIs).
