  The Malaysian satellite RazakSAT-1 was designed to operate in a
near-equatorial orbit (NEqO) and low earth orbit (LEO). However, after one year
of operation in 2010, communication to the satellite was lost. This study
attempted to identify whether space radiation sources could have caused the
communication loss by comparing RazakSAT-1 with two functional satellites. Data
on galactic cosmic rays (GCR), trapped protons, trapped electrons, and solar
energetic particles (SEPs) obtained from Space Environment Information System
(SPENVIS) was analyzed.
