Topic: S-NPP/OMPS special DIAG SCIENCE measurements

Date/Time Issued: July 31, 2026 1825z

Product(s) or Data Impacted: Routine NomOps dayside measurement (CBM) activities will be replaced with DIAG SCIENCE

activities on eight (8) full orbits spread across 2 days, that is, specifically, 4 orbits per day.

Date/Time of Initial Impact: Aug. 13, 2026, 0137Z

Date/Time of Expected End: Aug. 14, 2026, 1813Z

Length of Outage/Event: 40 Hours 37 Minutes

Details/Specifics: Eight (8) special orbits of S-NPP/OMPS DIAG SCIENCE data will occur on the dates/times listed below. These special orbits will result in no NOM APID science data on those orbits.

Specific dates of special (CBM) measurement executions:

2026-Aug-13: CBM Block ID 30: CBM to be started at approximately 01:37:27Z

2026-Aug-13: CBM Block ID 30: CBM to be started at approximately 03:18:57Z

2026-Aug-13: CBM Block ID 32: CBM to be started at approximately 15:09:24Z

2026-Aug-13: CBM Block ID 32: CBM to be started at approximately 16:50:54Z

2026-Aug-14: CBM Block ID 33: CBM to be started at approximately 01:18:22Z

2026-Aug-14: CBM Block ID 33: CBM to be started at approximately 02:59:51Z

2026-Aug-14: CBM Block ID 30: CBM to be started at approximately 14:50:18Z

2026-Aug-14: CBM Block ID 30: CBM to be started at approximately 16:31:48Z

This information has been provided by OMPS SIPS. Please contact Jonathan Stacey (jonathan.m.stacey@nasa.gov) or Thomas Kelly (thomas.j.kelly-1@nasa.gov) if you have questions or concerns.