Sentinel-1 has four types of data products:
- 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:
- What is a Level-1 product?
- What is the difference between Sentinel-1A and 1B?
- What is the use of Sentinel-1?
- What is the difference between Sentinel-1 and Sentinel 2?
What is a Level-1 product?
Sentinel-1 Level-1 products are the baseline products for the majority of users from which higher levels are derived. From data in each acquisition mode, the Instrument Processing Facility (IPF) generates focused Level-1 Single Look Complex (SLC) products and Level-1 Ground Range Detected (GRD) products.
What is the difference between Sentinel-1A and 1B?
Both Sentinel-1A and Sentinel-1B share the same orbit plane with a 180° orbital phasing difference. With both satellites operating, the repeat cycle is six days. In particular for interferometry, Sentinel-1 requires stringent orbit control.
What is the use of Sentinel-1?
SENTINEL-1 provides data feeding services for applications in the Copernicus priority areas of maritime monitoring, land monitoring and emergency management.
What is the difference between Sentinel-1 and Sentinel 2?
The first Sentinel-1 satellite was launched in April 2014. The objective of Sentinel-2 is land monitoring, and the mission will be composed of two polar-orbiting satellites providing high-resolution optical imagery. Vegetation, soil and coastal areas are among the monitoring objectives.