EO·Atlas
INSAT-3DS Sounder
Geostationary atmospheric sounder on INSAT-3DS with 18 infrared channels and one visible channel for temperature and humidity profiles, atmospheric stability indices, water vapour content, and total column ozone.
INSAT-3DS Sounder is the mission's geostationary atmospheric sounder, not the six-channel INSAT-3DS Imager [1][2]. It provides 18 infrared channels and one visible channel for cloud and Earth context, supporting temperature and humidity profiles, atmospheric stability indices, water-vapour content, and total column ozone [1][3]. Spectral coverage runs from about 0.695 um in the visible channel to 14.710 um in the longwave infrared channels; rounded wavelength and sensitivity values across the broader INSAT Sounder family do not change the 3DS-specific 18-IR-plus-VIS configuration [1][3][4]. Ground sampling is 10 km, full-frame sounding cadence is 3 hours, and the 6000 km by 6000 km sounding area is listed at 160 minutes; the 3DS sounder uses 13-bit measurements [1]. On 2024-03-07 the 3DS meteorological payloads began imaging and sounding with nominal parameters, giving the sounder an operational basis for geostationary profile retrieval workflows [2].
Pricing not publicly listed by operator
Supply chain position
- [1]MOSDAC INSAT-3DS payloadsagency doc2026-06-16
- [2]ISRO INSAT-3DS begins imaging the Earthagency doc2026-06-16
- [3]WMO OSCAR instrument record: INSAT Sounderagency doc2026-06-16
- [4]WMO OSCAR satellite record: INSAT-3DSagency doc2026-06-16
How to cite this page
Plain text
INSAT-3DS Sounder. EO-Atlas, SpectraWorks B.V. https://eo-atlas.org/products/sensor/insat-3ds-sounder (CC BY 4.0)
BibTeX
@misc{eoatlas:products:sensor:insat-3ds-sounder,
title = {INSAT-3DS Sounder},
author = {{EO-Atlas}},
publisher = {SpectraWorks B.V.},
note = {CC BY 4.0},
url = {https://eo-atlas.org/products/sensor/insat-3ds-sounder}
}