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Have you ever pondered about the effects of solar flares and coronal mass ejections (CMEs) on our planet? These #solarstorms have the ability to disrupt radio communications and create breathtaking auroras, showcasing their immense power! Discover how scientists, such as those at ISRO working on the Aditya-L1 mission, are actively monitoring these impactful events to safeguard our #technologyandinfrastructure. Immerse yourself in the captivating realm of solar storms and observe India's significant contributions to this vital research. Read More: https://bit.ly/4dg3RSs34

I'm thrilled to share my latest article on a topic that has truly captured my interest: solar storms and their impact on satellite systems! 🛰️ In this piece, I delve into the fascinating realm of solar activity and its potential to disrupt our space infrastructure, impact communication systems, and even damage satellites. Drawing from recent solar phenomena visible in our skies, I explore how these events occur and their implications for satellite operations. Additionally, I discuss cutting-edge research in state-of-the-art technology that aims to mitigate these disruptions, ensuring the reliability and longevity of satellite systems. Read the full article here and let me know your thoughts: https://lnkd.in/ev_FieqN

#SolarWind alert TY #Spaceweather.com for the data BigDataMined SOLAR RADIATION STORM--NOW: For the second time in less than a week, energetic solar protons are raining down on Earth's upper atmosphere. Forecasters call this a "solar radiation storm." Today's storm (near category S2) is rich in "hard protons" wiith energies greater than 50 MeV. It is causing a shortwave radio blackout inside the Arctic Circle and speckling the cameras of some Earth-orbiting satellites.

#Satellites Japanese satellite will beam solar power to Earth in 2025: Japan will test solar power transmission from space in 2025 with a miniature space-based photoelectric plant that will wirelessly transmit energy from low Earth orbit to Earth.

【The Dependence between Solar Flare Emergence and the Average Background Solar X-Ray Flux Emission】 Full article: https://lnkd.in/g7Hgmq9a (Authored by Yael Peleg, et al., from Ben Gurion University of the Negev, Israel.) The correlation between the Sun's activity, active areas (such as #sunspots), background flux, and the intensity of #solar_flares is a complex and dynamic relationship. Understanding this correlation helps scientists and researchers predict #solar_activity during different phases of the #solar_cycle. This study investigates the potential of the Sun's background X-ray flux as a tool for predicting solar flares, and analyzes data collected by solar telescopes and satellites between the years 2013 and 2023, focusing on the duration, frequency, and intensity of solar flares. #Space_Weather 

Satellites don't last forever. Most are retired as planned. Like some of us, others are pressed to continue working many more years. An unfortunate few, less than 1 in 10 (see https://lnkd.in/e2cf-Qm3 ), fail before their time. #Space is a harsh environment in many ways. Fixing a satellite in orbit is tough today. So, when a failure happens, the satellite is usually taken out of service as gracefully as possible. Depending on the age of the satellite, the reasons for the failures changes. Some things are likely to fail when the satellite is first brought to life. Others dominate as the satellite ages. An older paper by Castet and Saleh has a nice breakdown of how failures progress as a satellite ages. The graphs tell the story that early in a satellite's life, the primary reasons for failure are related to bringing it to life. When the #solar arrays, thrusters and gyros first start operation after being shaken in launch and #thermal cycles by 100's of degrees, things go wrong. Towards planned retirement, #batteries, telemetry, tracking, #control dominate the failures. Because space based solar power (#SBSP) satellite are huge, there is concern about reliability. However, satellites tend to become more reliable size. Furthermore, there are huge opportunities to improve reliability significantly over historical patterns. Significant differences from existing satellites include massive system parallelization, different ratios of subsystems, and manufacturing assembly hardware that can act as service equipment for in-orbit repair. All of this should make SBSP satellites one of the most reliable and durable satellites every built. Virtus Solis Technologies #deeptech #spacetech #climatetech #reliabilityengineering Sources: Castet, J., & Saleh, J.H. (2009). Satellite Reliability: Statistical Data Analysis and Modeling.

PRL built SWIS/ASPEX on board ADITYA-L1 starts measurements. December 01, 2023 The Aditya Solar Wind Particle Experiment (ASPEX) payload onboard India's Aditya-L1 satellite has commenced its operations and is performing normally. ASPEX comprises two cutting-edge instruments – the Solar wind Ion Spectrometer (SWIS) and STEPS (SupraThermal and Energetic Particle Spectrometer). The STEPS instrument was operational on September 10, 2023. The SWIS instrument was activated on November 2, 2023, and has exhibited optimal performance. SWIS, utilizing two sensor units with a remarkable 360° field of view each, operates in planes perpendicular to one another. The instrument has successfully measured solar wind ions, primarily protons and alpha particles. A sample energy histogram acquired from one of the sensors over two days in November 2023 illustrates variations in proton (H+) and alpha particle (doubly ionized helium, He2+) counts. These variations were recorded with nominal integration time, providing a comprehensive snapshot of solar wind behaviour. The directional capabilities of SWIS enable precise measurements of solar wind protons and alphas, contributing significantly to addressing longstanding questions about solar wind properties, underlying processes, and their impact on Earth. The change in the proton and alpha particle number ratio, as observed by SWIS, holds the potential to provide indirect information about the arrival of Coronal Mass Ejections (CMEs) at the Sun-Earth Lagrange Point L1. The enhanced alpha-to-proton ratio is often regarded as one of the sensitive markers of the passage of interplanetary coronal mass ejections (ICMEs) at the L1 and hence considered crucial for space weather studies. As researchers delve deeper into the collected data, the international scientific community eagerly awaits the wealth of knowledge that Aditya-L1's ASPEX is set to unveil about the enigmatic solar wind and its implications for our planet. https://lnkd.in/dwjYRhCs https://lnkd.in/dq3Taftg https://lnkd.in/dg3XukEe

End of life failures make sense, but did you know a significant number of newly launched orbital devices never come on-line? Even in this article from 15 years ago - on-orbit deployment of solar arrays and mechanisms accounted for a third of all failures at start of life. Think hard about your mechanisms....

Need of Safeguarding the Non-Terrestrial Networks(NTN), Sattelite/GPS communication from Geomagnetic Solar Storms On May 11th, 2024, Earth was hit by a massive G5(Level 5) geomagnetic solar storm, the highest on the scale, raising significant concerns for Non-Terrestrial Networks (NTN), including satellite and GPS communications. The intense storm, charged with particles, poses a real threat to satellite electronics and can severely disrupt communication signals. The impact of a G5 storm goes beyond that of a G4, which might cause widespread glitches in power systems. A G5 storm can lead to complete blackouts and even collapses of power grids.  Elon Musk shared the data showing Geomagnetic Solar Storm faced by Starlink Satellites(see below). Moreover, these strong storms are responsible for the spectacular auroras at Earth's poles, often known as the Northern Lights. As we face these celestial challenges, it's crucial to focus on strategies to protect our critical satellite and communication infrastructures.  Understanding and preparing for these events will ensure stability and continuity in our increasingly technology-dependent world. #NTN #SolarStorm #SatelliteCommunication #GPS #GeomagneticStorms #NorthernLights https://lnkd.in/gCMZPQcv

We’re currently in the early stages of Solar Cycle 25, a significant increase of activity on the sun’s surface which can result in solar flares that can impact everything from radio communications to the GNSS signals. Learn how EGNOS helps us during these anomalies: