ESDIS Weekly Metrics: December 15, 2025

Note:

1. The volume distributed to end users per day, as a running average over the last 4 weeks, is 13.039 times the volume added to the archive per day.
2. On November 18, 2025, LPDAACCLOUD had a noticeable increase in distributed data.
3. On November 21, 2025, NSIDCCLOUD had a noticeable increase in distributed data.
4. From November 26-29, 2025, ASFCLOUD had a noticeable increase in distributed data.
5. On November 30, 2025, NSIDCCLOUD had a noticeable increase in distributed data.

LANCE Data Latency

Note:

Higher product latencies for:

• TROPOMI-SENTINEL-5P, on December 3, 2025, was due to overnight failure.
• MLS-AQUA, on December 8 and 13, 2025, were due to system issues.
• OMPS-SNPP, on December 10, 2025, was due to a ground station problem.
• TROPOMI-SENTINEL-5P, on December 10, 2025, is under investigation.

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 6 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 (MLS-AURA, SMAP L-BAND RADIOMETER-SMAP, VIIRS-NOAA-20-Land,VIIRS-SNPP-Land, VIIRS-NOAA-20-Atmosphere, and VIIRS-NOAA-21-Land) were satisfied within 3 hours. MLS-AURA, SMAP L-BAND RADIOMETER-SMAP, VIIRS-NOAA-20-Land, VIIRS-SNPP-Land, VIIRS-NOAA-20-Atmosphere, and VIIRS-NOAA-21-Land over 93%, 54%, 94%, 76%, 73%, and 44% of the NRT data requests were satisfied within 3 hours, respectively.

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