NISAR

Sensor type	Synthetic-aperture radar (SAR)
Platform	NISAR (NASA-ISRO Synthetic Aperture Radar)
Frequency	1.25 GHz
Band	L
Polarizations	HH, HV, VH, VV
Key file name (use to open data set)	NISAR_L1_PR_RSLC*
Supported file name extensions	*.h5
Data distributor	NASA partnership with the Indian Space Research Organisation (ISRO)

Data product name and description

NISAR (NASA-ISRO Synthetic Aperture Radar) is a cutting-edge satellite mission designed to monitor Earth's surface changes. Below are the key specifications of the NISAR satellite.

Note: The information provided here is based on the NISAR product documentation cited under: References

Mode	Swath width (km)	Resolution (m)	Polarizations	Description
StripMap[SM] Quad Pol	242 km	3 - 48 m	VH, HV, VV, HH	NISAR data comes with up to two swaths: FrequencyA and FrequencyB . Each must be ingested separately with the swath names: NISAR_L1_RSLC_FREQ_A or NISAR_L1_RSLC_FREQ_B

Distribution disk files

NISAR RSLC data sets are distributed in the HDF5 format.

File name	Format	Required	Contents/details
*.h5	HDF5	Yes	Contains all of the information needed. No other files are needed.

Returned data for supported format

In the following table, the image dataset after it is imported into a PCIDSK file is described.

Data product	Data returned	Details
RSLC (single, dual, or quad pol)	1 to 4 [C32R] raster channels (calibrated to type selected by user during running data ingest) 1 x [GCP] Ground control points 1 x [BIN] rational function model from state vectors 1 x [ARR] incidence angle array	Data can be converted to Beta0, Sigma0 or Gamma0. NISAR data is precalibrated with Beta0.