EOSDIS Science Data Metrics
1. The volume distributed to end users per day, as a running average over the last 4 weeks, is 4.1 times the volume added to the archive per day.
LANCE Data Latency
- Higher product latencies for:
- VIIRS-JPSS-1 (Atmosphere) and VIIRS-Suomi NPP (Atmosphere) on 08 January 2022 were due to a FTPPRD server at NCEP being down, and a new ingest method for L0 files.
- MODIS-AQUA on 06 January 2022 were due to a FTPPRD server at NCEP being down. The files were ingested from GDAAC instead as a work around.
- MODIS-AQUA and MODIS-TERRA on 08 January 2022 were due a delay of L0 files.
- Latency for a data granule is defined as the time taken from the midpoint between the start and end of acquisition of the data for that granule to the granule’s being ready on-line for users to download.
- Duration covered by the data for a granule is defined differently for different instruments (e.g., MODIS granules are 5 minutes long while OMI NRT granules are 13 to 136 minutes long).
- Over the last four weeks, over 95% of NRT data requests for all instruments except for four instruments (LIS-ISS, MODIS-AQUA, OMPS-Suomi NPP, and VIIRS-Suomi NPP (Atmosphere)) were satisfied within 3 hours. For LIS-ISS, MODIS-AQUA, OMPS-Suomi NPP, and VIIRS-Suomi NPP (Atmosphere) over 79%, 92%, 95%, and 79% of the NRT data requests were satisfied within 3 hours, respectively.