ESDIS Weekly Metrics: April 22, 2024

Note:
1. The volume distributed to end users per day, as a running average over the last 4 weeks, is 2.629 times the volume added to the archive per day.

LANCE Data Latency

Note:

Higher product latencies for:

• VIIRS-SNPP (Land) on April 14, 2024, due to missing ancillary data
• VIIRS-SNPP (Atmosphere) and VIIRS-NOAA-20 on April 17, 2024, due to missing ancillary data
• AMSR2-GCOM-W1 on April 18, 2024, due to a delay in L1R input data
• SMAP L-BAND RADIOMETER-SMAP on April 19, 2024, which is being looked into
• MOPITT-TERRA on April 20, 2024, due to an upstream delay of the 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 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 four instruments (SMAP L-BAND RADIOMETER-SMAP, VIIRS-JPSS1(Land), VIIRS-SNPP (Land), and VIIRS-SNPP (Atmosphere)) were satisfied within 3 hours. For SMAP L-BAND RADIOMETER-SMAP, VIIRS-JPSS1(Land), VIIRS-SNPP (Land), and VIIRS-SNPP (Atmosphere), over 82%, 93%, 82%, and 94% of the NRT data requests were satisfied within 3 hours, respectively.

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