Also referred to as the “Solar Geophysical Activity Report and Forecast”, this report provides a summary and analysis of solar and geomagnetic activity during the previous 24 hours as well as the most recent solar indices. It also provides a forecast of activity and indices for the next 3 days. (This is a joint USAF/NOAA bulletin.)
This is a legacy USAF/NOAA bulletin, with a daily Ap geomagnetic focus rather than a focus on the updated NOAA Kp indice for geomagnetic activity (which can be found in the 3-Day and Forecast Discussion products). This product remains an active report for continuity purposes, and is issued daily at 2200, with no out of cycle updates.
A description of the report and the indices is available here.