SN1987A
The nascent core-collapse supernova remnant SN1987A presents a unique opportunity to observe the rapid time evolution of a non-equilibrium ionization (NEI) collisional plasma at early evolutionary timescales. During the XRISM mission life
obsid = 300021010 / Unique Observation/Sequence Number object = SN1987A / Object name pi_name = Collaboration XRISM / Proposal Principal Investigator Name ra = 83.8667436601168 / Right Ascension (Pointing Position) (deg) dec = -69.268637168912 / Declination (Pointing Position) (deg) roll_angle = 31.0129306823298 / Roll Angle (deg) start_time = 2024-06-17T18:20:04 / Start Time of the Observation stop_time = 2024-06-22T14:01:04 / Stop Time of the Observation exposure = 348866.1557571 / Effective Total Observation Exposure (s) public_date= 2099-12-31 / Public Date