ESDIS Weekly Metrics: May 13, 2024

Note:
1. The volume distributed to end users per day, as a running average over the last 4 weeks, is 1.899 times the volume added to the archive per day.

LANCE Data Latency

Note:
Higher product latencies for:

• VIIRS-SNPP-Land on May 8, 2024, due to a SNPP anomaly that caused both a delay in data as well as a data gap that was unrecoverable
• OMI-AURA on May 9, 2024, due to an issue with an import of Level 0 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 on-line 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 four weeks, over 95% of NRT data requests for all instruments except for seven instruments (AMSR2-GCOM-W1, OMI-AURA, SMAP L-BAND RADIOMETER-SMAP, VIIRS-NOAA-20-Land, VIIRS-SNPP-Land, VIIRS-SNPP-Atmosphere, and VIIRS-NOAA-20-Atmosphere) were satisfied within 3 hours. For AMSR2-GCOM-W1, OMI-AURA, SMAP L-BAND RADIOMETER-SMAP, VIIRS-NOAA-20-Land, VIIRS-SNPP-Land, VIIRS-SNPP-Atmosphere, and VIIRS-NOAA-20-Atmosphere, over 89%, 94%, 82%, 93%, 78%, 94%, and 92% of the NRT data requests were satisfied within 3 hours, respectively.

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