78272201 2024 019 12:00 1 4.01 Implemented aberration correction by active optics 
78272201 2023 319 12:00 1 10.01 moved normal point processing to new computer 
78272201 2023 310 16:48 1 6.01.02 raised bias voltage of detector 
78272201 2023 283 12:00 1 6.01.02 Repair of event timer power supply 
78272201 2023 158 17:00 2 99.99.99 replaced detector signal cable, system delay changed 
78272201 2020 115 09:00 1 6.01.02 replaced event timer input and readout electronics 
78272201 2019 148 18:15 1 12.01.02 Replacement of pressure sensor due to -0.25hPa offset 
78272201 2016 132 15:00 1 06.01.02 Replacement of detector due to degradation 
78272201 2014 121 12:00 3 99.99.99 System put into operation