Lev Dorman passed away in his 94th year. From the first detection of the ever largest GLE 65 years ago till last months he was very active not only in space research and education but also in the endeavor of accumulation of the whole geospace knowledge in his valuable books.
The University of Surrey in the UK has developed a new model for nowcasting the radiation environment for the aviation sector. A version of this model, called MAIRE-S, which uses NMDB data in its algorithms can be viewed online.
One defective counter tube has been replaced on TERA 9NM64 on 19/11/2021. The count rate is slightly higher since then, with a difference smaller than 1% however. The corrected_for_efficiency value will take this change into account when we have enough hindsight to evaluate more precisely the bias.
A X1.0 class X-ray flare occurred on 2021/10/28. Solar Energetic Particles have been recorded by GOES and Stereo. The polar stations of the Global Neutron Monitor Network have seen a sudden, but moderate, increase in cosmic ray count rates.
Evgenia Eroshenko from IZMIRAN, Russia, passed away at the age of 80 years on June 3, 2021. Evgenia Eroshenko had a long-standing career with research on all aspects of cosmic ray observations with neutron monitors.
Roger Pyle passed away at the age of 78 years on May21, 2020. He had been a long-standing member of the cosmic ray group at the University of Delaware, Newark, and continued working for the operation of the ‘Spaceship Earth’ network after his retirement in 2007.