Tagged: satellites

Possible inter-satellite collision on Friday - Out of Space

Duncan Steel Oct 14, 2020

Two objects in low-Earth orbit may collide with each other on Friday, in a hyper-velocity impact which would lead to millions of fragments being left on-orbit, each potentially-lethal to functioning satellites. Fingers crossed (not that I am superstitious) that it is a miss, rather than a hit. One local media article is available here. Above I wrote ‘objects’ because … Read More

New launch of 60 SpaceX satellites crossing NZ - Out of Space

Duncan Steel Feb 22, 2020

Last Monday SpaceX launched another clutch of Starlink satellites into low-Earth orbit, bringing up to 300 the number of these units intended to bring 5G internet to the whole globe. In this post I present a movie showing how all 300 such satellites will be zipping around our planet over the next eight days (until the end of the month), … Read More

Update on how to see the Space-X satellite chains from NZ - Out of Space

Duncan Steel Feb 08, 2020

In a previous post I described briefly when and how the Starlink satellite chains – recent launches by Space-X in a scheme to bring 5G internet connectivity to the whole globe – could be seen from New Zealand with the naked eye. Here I provide an update and predictions for the next several days.  My preceding post included … Read More

Seeing the Space-X satellite chains from NZ - Out of Space

Duncan Steel Feb 04, 2020

Space-X has started launching its Starlink satellites into low-Earth orbit with a plan to use some tens of thousands of these to deliver 5G wifi to the whole globe. Chains of these satellites can be seen in the evening or before-dawn skies, through the sunlight they scatter. Here I provide a movie showing opportunities for spotting such satellites over the … Read More

Earth’s artificial rings - Out of Space

Duncan Steel Nov 20, 2019

Satellites pass over NZ all the time (literally). Here I focus on the 187 Planet Labs ‘Dove’ Earth-imaging satellites, and I show that one can determine in advance where they will be, enabling scientists on the ground to correlate their environmental and other data collection with opportunities to get imaging from space. That is, we can get ‘space-truth’ (rather than … Read More

India a major player in Earth observation satellites - Out of Space

Duncan Steel Oct 15, 2019

While many imagine that countries like the USA and Europe dominate space activities, in fact India is now a major player on this stage. It launches satellites for its own purposes and also commercially, and has constellations orbiting our planet and returning data of vital importance to that nation in many ways.  Yesterday I was really pleased to give a … Read More

The fires in Brazil in satellite imagery: Part 1 - Out of Space

Duncan Steel Aug 31, 2019

The numerous fires now burning in Brazil have been much-discussed of late, with world leaders complaining that the nation’s authorities allowing such clearing of land is highly detrimental to international efforts to limit the release of more carbon dioxide into the atmosphere, with the potential to exacerbate anthropogenic global warming/climate change. In this post I illustrate how such fires may … Read More

Orbits of the satellites launched by Rocket Lab three days ago - Out of Space

Duncan Steel Jul 02, 2019

On Saturday June 29th Rocket Lab launched another cluster of seven satellites into low-Earth orbit from the Mahia Peninsula in New Zealand’s North Island. In this blog post I illustrate the orbital paths of the ten resultant tracked items now in orbit.  In a blog post last week (June 27th) I showed the orbits of the various satellites launched … Read More

Tracking satellites launched from NZ - Out of Space

Duncan Steel Jun 27, 2019

With so many thousand satellites now in orbit, and tens of thousands of other tracked items, one might think that it is difficult keeping tabs on them, simply as an interested person. In fact it is quite straightforward, with long lists of orbital elements freely available for all except the few satellites deemed by the US Government to require secrecy, … Read More