ESDIS Weekly Metrics: September 23, 2024

Note:
1. The volume distributed to end users per day, as a running average over the last 4 weeks, is 2.338 times the volume added to the archive per day.
2. The spike in volume distribution on September 5, 2024 was from the distribution of 527.84 TB of SENTINEL-1A_SLC data by a user from the U.S.

LANCE Data Latency

Note:
Higher product latencies for:

• AMSR2-GCOM-W1 on September 17, 2024, due to L1R input data from JAXA being delayed
• SMAP L-BAND RADIOMETER-SMAP on September 17, 2024; this is still being investigated

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 five instruments (OMPS-SNPP, SMAP L-BAND RADIOMETER-SMAP, VIIRS-NOAA-20-Land, VIIRS-SNPP-Land, and VIIRS-SNPP-Atmosphere) were satisfied within 3 hours. For OMPS-SNPP, SMAP L-BAND RADIOMETER-SMAP, VIIRS-NOAA-20-Land, VIIRS-SNPP-Land, and VIIRS-SNPP-Atmosphere, over 94%, 83%, 89%, 79%, and 80% of the NRT data requests were satisfied within 3 hours, respectively.

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