NASA - National Aeronautics and Space Administration

The DRL serves the global Direct Readout community as a Portal for JPSS-1 Direct Readout mission information, technologies and algorithms, thus enabling the community to process JPSS-1 Earth monitoring data for real-time applications.

Beginning with the spacecraft integration and test phase, DRL staff works closely with the Mission team to verify all of the technologies released by the DRL.  For the purposes of technology evaluation and user awareness, the DRL receives the JPSS-1 High Rate Data (HRD) transmission using a representative JPSS-1 Direct Readout system and generates products for each pass observed. The products are then published to the Recent Data Products gallery on the DRL Web Portal. The Real-time Software Telemetry Processing System provides mission compatible pre-processing tools.  The algorithms used to generate these products are provided by the mission and ported by the DRL and other mission development teams. The DRL implements these algorithms in support of the JPSS-1 instrument suite for use in a Direct Readout environment. These JPSS-1 algorithms, in Science Processing Algorithm (SPA) form, are available for free download via the DRL Web Portal. The IPOPP data processing framework is available for free download via the DRL Web Portal.

JPSS-1 Direct Readout Data, Technologies, and Services

• JPSS-1 Data
  Data for pre-launch testing and validation is available here.
• Technologies
  Software and Algorithms to process JPSS-1 data will be available here.
• Recent JPSS-1 Data Products
  JPSS-1 data products generated with IPOPP technologies will be displayed here.
• Latest VIIRS Image
  Quicklook Images from the VIIRS Instrument created with Simulcast will be displayed here.
• Latest Ephemeris
  Latest JPSS-1 Two-Line Element (TLE) File will be available here.

Click here for the DRL JPSS-1 HRD Commissioning Report (October 2018).

JPSS-1 Mission Documentation

• JPSS Common Data Format Control Book - External Volume II – RDR Formats.
• JPSS Common Data Format Control Book - External Volume III – SDR/TDR Formats. 
• JPSS Common Data Format Control Book - External Volume V – Metadata.
• JPSS Common Data Format Control Book – External Volume VII – Part I – JPSS Downlink Data Formats.
• JPSS Field Terminal Support Segment (FTS) to Services Interface Description Document.  474-00380-B0200.   February 2, 2016.
• JPSS-1 Spacecraft High Rate Data (HRD) to Direct Broadcast Stations (DBS) Radio Frequency (RF)  Interface Control Document (ICD).  470-REF-00184.  February 9, 2015.
• Mission Data Format Control Book Joint Polar Satellite System-1 (JPSS-1) (MDFCB). 472-00251. Revision C.  Effective Date: August 4, 2016. (PDF)