Snehalata Sahu
Ultraviolet Imaging Telescope
UVIT is one of the payloads of AstroSat, India's first multi-wavelength space observatory. AstroSat was launched on 28 September, 2015. UVIT is primarily an imaging instrument consisting of two 38 cm telescopes that simultaneously observe in FUV (130-180 nm), NUV (200-300 nm) and visible (320-550 nm) channels.
UVIT's characteristics are:
-
Large Field of View ~ 28' in diameter
-
Good spatial resolution < 1.5"
-
Multiple filters within FUV and NUV
Check out this paper for the UVIT calibration details.
Click here for the effective area curves of UVIT filters and the zero points.
Click here for the full details about the instrument.
AstroSat
Configuration of UVIT
Image Credits: ISRO
1. For proposal submission, visit this link https://apps.issdc.gov.in/apps/auth/login.jsp
-
AstroSat scientific justification example: sci_just.pdf
-
AstroSat technical justification example: tech_just.pdf
2. For downloading the AstroSat data, visit this link https://astrobrowse.issdc.gov.in/astro_archive/archive/Home.jsp
3. UVIT Level1 (L1) data reduction can be done using CCDLAB software (developer: Joesph Postma).
-
For details, check out this paper click here
-
For downloading the CCDLAB package along with the manual click here
UVIT Images of Globular Clusters
NGC 288
F148W (blue) and F169M (green)
N279N (yellow)