User:Dlanka/sandbox

Sentinel-1 satellite characteristics: Sentinel-1's 4 operational/acquisition modes: Sentinel-1's data products:
 * 7 year lifetime (12 years for consumables)
 * Launcher: Soyuz
 * Near-polar (98.18°) Sun-synchronous orbit
 * 12-day repeat cycle
 * 175 revolutions per cycle
 * 98.6 minute orbital period
 * 3-axis altitude stabilization
 * 2300 kg launch mass
 * 3.9 by 2.6 by 2.5 meter dimensions
 * 1 dB radiometric accuracy
 * Strip Map (SM) Mode features 5 by 5 meter spacial resolution and an 80 km swath.
 * Sole uses of SM are to monitor small islands as well as emergency management for extraordinary events upon request.
 * Interferometric Wide Swath (IW) Mode features 5 by 20 meter spacial resolution and a 250 km swath.
 * This is the main operational mode over land.
 * IW accomplishes interferometry through burst synchronization
 * Extra Wide Swath (EW) Mode features 25 by 100 meter spacial resolution and a 400 km swath.
 * EW is used mainly to monitor wide coastal areas for phenomena such as shipping traffic and potential environmental hazards like oil spills or changes in sea-ice.
 * Wave (WV) Mode features 5 by 20 meter resolution and a low data rate. It produces 20 by 20 km sample images along the orbit at intervals of 100 km.
 * This is the main operational mode over open ocean.
 * Raw Level 0 data
 * Processed Level 1 Single Look Complex (SLC) data:
 * Complex images with phase and amplitude of specified areas
 * Ground Range Detected (GRD) Level 1 data:
 * Only systematically distributed multi-looked intensity
 * Level 2 Ocean (OCN) data:
 * Systematically distributed data of ocean's geophysical parameters