@misc{The HMI Consortium: Stanford University (USA)_NASA Goddard Space Flight Center (USA)_Lockheed Martin Solar and Astrophysics Laboratory (USA)_National Center for Atmospheric Research (USA)_2024, title={Space-weather HMI Active Region Patch (SHARP)}, url={https://hpde.io/NASA/NumericalData/SDO/HMI/SHARP/PT720S.html}, DOI={10.48322/M86T-BH26}, abstractNote={SHARP stands for Space-weather HMI Active Region Patch. A SHARP is a DRMS series that contains (1) various space-weather quantities calculated from the photospheric vector magnetogram data and stored as FITS header keywords, and (2) 31 data segments (described in detail below), including each component of the vector magnetic field, the line-of-sight magnetic field, continuum intensity, doppler velocity, error maps and bitmaps. The data segments are not full-disk; rather, they are partial-disk, automatically-identified active region patches. SHARPs are calculated every 12 minutes. Often, there is more than one active region on the solar disk at any given time. Thus, SHARPs are indexed by two prime keys: time, T_REC, and HMI Active Region Patch Number, HARPNUM.

}, publisher={Joint Science Operations Center (JSOC), Stanford University}, author={The HMI Consortium: Stanford University (USA) and NASA Goddard Space Flight Center (USA) and Lockheed Martin Solar and Astrophysics Laboratory (USA) and National Center for Atmospheric Research (USA)}, year={2024} }