ESDIS Weekly Metrics: September 15, 2025

Note:

1. The volume distributed to end users per day, as a running average over the last 4 weeks, is 3.682 times the volume added to the archive per day.

LANCE Data Latency

Note:

Higher product latencies for:

• OMPS-SNPP, on September 8, 2025, due to an issue with a lookup table.
• OMI-AURA, on September 10, 2025, due to reboots.

Note:

1. 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 online for users to download.
2. 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).
3. Over the last 4 weeks, over 95% of NRT data requests for all instruments except for 6 instruments (OMPS-SNPP, SMAP L-BAND RADIOMETER-SMAP, TROPOMI-SENTINEL-5P, VIIRS-SNPP-Land, VIIRS-NOAA20-Atmosphere, and VIIRS-NOAA-21-Land) were satisfied within 3 hours. OMPS-SNPP, SMAP L-BAND RADIOMETER-SMAP, TROPOMI-SENTINEL-5P, VIIRS-SNPP-Land, VIIRS-NOAA20-Atmosphere, and VIIRS-NOAA-21-Land over 93%, 88%, 81%, 75%, 81%, and 86% of the NRT data requests were satisfied within 3 hours, respectively.

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