ESDIS Weekly Metrics: May 4, 2026

Notes:

1. The volume distributed to end users per day, as a running average over the past four weeks, is 2.531 times the volume added to the archive per day.
2. The spike in distribution was caused by the download of the product SENTINEL-1A_SLC from ASFCLOUD.

Note: Higher product latencies for:

• VIIRS-SNPP-Atmosphere, on April 28, 2026, were due to an ongoing outage for SNPP data.
• VIIRS-SNPP-Land, on April 28-29 and May 2, 2026, were due to an ongoing outage for SNPP data and the late arrival of data, respectively. 
• OMPS-SNPP, on May 2, 2026, is under investigation.

Notes:

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 to the granule being ready on-line for users to download.  
2. Duration covered by the data for a granule is defined differently for four different instruments (e.g., MODIS granules are 5 minutes long, while OMI NRT granules are 13 to 136 minutes long).
3. Over the past four weeks, more than 95% of near-real time (NRT) data requests for nearly all instruments were satisfied within 3 hours. The exceptions were OMPS-NOAA-21 and VIIRS-SNPP-Land, which had rates of 55% and 79%, respectively, of NRT data requests being satisfied within 3 hours.

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