ESDIS Weekly Metrics: August 18, 2025

Note:

1. The volume distributed to end users per day, as a running average over the last 4 weeks, is 3.473 times the volume added to the archive per day.

LANCE Data Latency

Note:

Higher product latencies for:

• TROPOMI-SENTINEL-5P, on August 10 and 14, 2025, due to maintenance and connection issues, respectively.
• VIIRS-NOAA-20-Atmosphere and VIIRS-SNPP-Atmosphere, on August 10, 2025, due to an issue with faulty hardware.
• OMPS-SNPP, on August 12, 2025, due to receiving data late from EDOS.
• VIIRS-NOAA-20-Land and VIIRS-SNPP-Land, on August 12, 2025, due to experiencing data delays and some data gaps in NRT L0 data.

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 8 instruments (OMPS-SNPP, SMAP L-BAND RADIOMETER-SMAP, TROPOMI-SENTINEL-5P, VIIRS-NOAA-20-Land, VIIRS-SNPP-Land, VIIRS-SNPP-Atmosphere, VIIRS-NOAA20-Atmosphere, and VIIRS-NOAA-21-Land) were satisfied within 3 hours. OMPS-SNPP, SMAP L-BAND RADIOMETER-SMAP, TROPOMI-SENTINEL-5P, VIIRS-NOAA-20-Land, VIIRS-SNPP-Land, VIIRS-SNPP-Atmosphere, VIIRS-NOAA20-Atmosphere, and VIIRS-NOAA-21-Land over 91%, 86%, 68%, 93%, 72%, 88%, 88%, and 80% of the NRT data requests were satisfied within 3 hours, respectively.
4. MOPITT in Safe Mode: On February 1, 2025, the Terra Measurement of Pollution in The Troposphere (MOPITT) instrument went into safe mode. While in safe mode, there will be no MOPITT science data collected. On March 31, 2025, the MOPITT Subsetter was decommissioned.

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