ESDIS Weekly Metrics: September 29, 2025

Note:

1. The volume distributed to end users per day, as a running average over the last 4 weeks, is 3.525 times the volume added to the archive per day.

LANCE Data Latency

Note:

Higher product latencies for:

• VIIRS-SNPP-Atmosphere, on September 17, 2025, due to delay in receiving L0 data.
• OMPS-SNPP, on September 24 and 25, 2025, due to delay in receiving L0 data.
• VIIRS-SNPP-Land, on September 24 and 25, 2025, due to delay in receiving L0 data.
• VIIRS-SNPP-Atmosphere, on September 24 and 25, 2025, due to delay in receiving L0 data.
• VIIRS-NOAA-20-Atmosphere, on September 24, 2025, due to delay in receiving 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 6 instruments (OMPS-SNPP, SMAP L-BAND RADIOMETER-SMAP, VIIRS-SNPP-Land, VIIRS-SNPP-Atmosphere, VIIRS-NOAA-21-Land, VIIRS-NOAA-20-Atmosphere) were satisfied within 3 hours. OMPS-SNPP, SMAP L-BAND RADIOMETER-SMAP, VIIRS-SNPP-Land, VIIRS-SNPP-Atmosphere, and VIIRS-NOAA-21-Land, and VIIRS-NOAA-20-Atmosphere over 88%, 86%, 76%, 93%, 77%, and 83% of the NRT data requests were satisfied within 3 hours, respectively.

    

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