# Space Weather Effects from Observations by Moscow University Cubesat Constellation
## 6 Conclusions  
During the implementation of the Moscow State University project of elaboration of a multi-satellite constellation for real-time space radiation monitoring, a number of spacecraft of the CubeSat format were launched. To date, there are four such satellites operating in near-Earth orbits that regularly transmit scientific and telemetric data. These are the AmurSat and VDNKh-80 satellites of the 3U dimension, as well as the 6U DECART and Norbi CubeSats (together with Novosibirsk State University). Thus, for the first time, a unique multi-satellite constellation has been implemented, which makes it possible to simultaneously measure the particle and quantum fluxes at different areas in near-Earth space using the same type of instruments. A special compact detector of gamma quanta and energetic charged particles (electrons and protons) called DeCoR has been developed to carry out radiation monitoring on CubeSat satellites. With its help, observations of various effects of space weather have been made. During geomagnetic disturbances from late November to early December 2021, a significant increase in the sub-relativistic electron fluxes in the outer radiation belt was observed. At the same time, a significant expansion of its boundaries took place; in particular, the polar edge shifted to \(L\sim 10\), and such a change persisted for quite a long time, i.e., for several days. In late October-early November 2021, several fairly powerful solar flares occurred, as a result of which protons and electrons were accelerated and solar cosmic ray fluxes were produced. Observations of charged particle fluxes in the polar caps have been made, which have shown that they are effectively filled by solar energetic particles. The existence of stable streams of sub-relativistic energies in the region of the geomagnetic equator-on drift shells \(L<1.2\) has been confirmed. Presumably, such fluxes can be caused by electrons accelerated in high-altitude electromagnetic discharges. S.I.S.--The main author of the article, developed the concept of multi-satellite measurements of cosmic radiation, carried out scientific supervision of experiments on satellites of Moscow State University (principal investigator). A.V.B.--Participation in data analysis and writing a section on electrons near the geomagnetic equator, editing the text as a whole. V.V.B.--The chief designer of the electronics of the DeCoR instrument, carried out its adjustment and calibration, developed a data processing technique, prepared initial graphical information--time dependences of count rates. A.F.I.--Developed the concept of the DeCoR device, took part in editing the final version of the article. V.E.E.--Carried out primary data processing and provided database replenishment. V.V.K.--Developed the software for the data center of operational space monitoring. I.N.M.--Analysis of the geomagnetic situation during the experiment, selection of time intervals for studying the effects associated with space weather, participation in writing a section on space weather, drawing figures in the relevant sections. V.I.O.--Provided organizational and technical support conducting a multisatellite experiment. V.L.P.--Participated in writing the section on near-equatorial electrons, developed the concept of a multi-satellite constellation, developed technical requirements for spacecraft and recording instruments. O.Y.P.--Carried out organizational and technical support for the creation of DEKART, AmurSat, VDNKh-80 satellites in CubeSat format. M.L.P.--Developed a methodology for analyzing data from the DeCoR-2 device in parts of searching and studying time variations. Y.K.Z.--Chief designer of DEKART, \"AmurSat\", VDNKh-80 satellites. I.Y.Y.--Organized and carried out the manufacture of the DeCoR-2 device, pre-flight tests of satellites DEKART, \"AmurSat\", VDNKh-80. V.Y.P.--Chief designer of the Norby satellite. A.S.S.--Developed the methodology and received data from the satellite \"Norby\".