SaVi satellite constellation visualization software. Free to use on Linux, Mac, Windows and more. Starlink, Leo, OneWeb, Iridium, O3b... created in Minneapolis.
@anirudh_kabi@MaarginResearch As the SaVi maintainer, I'm interested in your simulation script. If it's associated with public documentation (a regulatory filing, say) then I could add it to SaVi...
Visual validation of our communication satellite LEO constellation design @MaarginResearch - preliminary. We used SaVi tool for this. 324 sats about 1000-1200km altitude.
A 36 degree shell coverage map - Indian latitude coverage prioritised - 12 x 12 sats - walker delta configuration.
A 53 degree shell coverage map - for rest of land mass with most population - 12 x 12 sats - walker delta configuration (exploring Waves design too).
A 82 degree polar shell - completing coverage - 6 x 6 sats - walker star configuration.
Full constellation coverage in the last figure.
Happy to share more thoughts to anybody interested in the work.
#constellation #satcom #space #ntn
Great news for allied governments globally! Telesat Lightspeed will deliver military Ka-band (Mil-Ka) services in addition to commercial Ka-band services.
Learn more: https://t.co/hCxNENILOn
#LEO#satellite#SATCOM#COMSATCOM
SpaceX needs a "new story" for its IPO, according to @tmfassociates.
"Everyone was saying… Starlink is going to generate enough revenue to take Elon Musk to Mars, and now we're suddenly talking about data centers instead...
“I think that's indicative of the fact that SpaceX has missed its forecast for the last three years… they need a new story. And I think that's what data centers in space do for them."
Full episode: https://t.co/OwyHZMVIjy
After the ’smallsat revolution’ that never happened, the new fad is called VLEO. The problem is that lowering the orbit decreases the productivity of each satellite and adds inefficiencies to global constellations: the lowervthe orbit the more wasted capacity is deployed in orbit
As @SpaceX seeks fresh capital its service distribution entity @Starlink Satellite Services Corp. files 2023/24 report, says it expanded from 91 to 118 markets, grew revenue from $1.4bn to $2.7bn (+93%), breaks down regional rev. distribution, posts 1st net profit of $72.7m🧵1/4
OTD in 1965, Intelsat I went into service after being activated by COMSAT. That April, it became the 1st commercial communications satellite to be placed in geosynchronous orbit. That may explain why it was nicknamed "Early Bird" (as in, "The early bird catches the worm").
Kepler Communications reports it has demonstrated space-to-ground optical data relay between its satellite in orbit and a Cailabs optical ground station. https://t.co/9aAYwF314O
@LionnetPierre@TMFAssociates@SpaceNews_Inc 2.6 billion people unconnected?
I seem to recall that that was the stated rationale behind O3b - serving the disconnected other three billion.
I believe O3b has since pivoted to serve customers who have money, such as cruise ships.
"Viasat plans to develop a partner-funded satellite constellation specifically designed to connect directly with everyday smartphones and Internet of Things (IoT) devices, without requiring cell towers or ground infrastructure"
@TMFAssociates 2/2 ...really good. "Oh," said the student proudly, "I know, right? I just made the calls while standing at the top of a multi-storey car park!"
(I was given a copy of Eccentric Orbits. I've never been able to suspend my disbelief and read more than a few pages.)
@TMFAssociates Eh, when I was at Surrey a guy at ICO funded a masters project, which was partly to evaluate Iridium phone performance in urban and rural settings; call quality, ease of calling, and the like.
The urban street canyon results were unexpected. They were really good... 1/2
I looked into the state of Tcl/Tk use and development on the Mac, to try and support SaVi better there. It's... messy.
(January 2025 tcl-mac list archives.)
https://t.co/dWcyXacHbh