A Minimal LRIT GOES Receiver
pietern.github.io
A Minimal LRIT GOES Receiver
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Re: A Minimal LRIT GOES Receiver
#2Is it possible to receive Solar Ultraviolet Imager (SUVI) images? Didn't find it in the documentation.
Re: A Minimal LRIT GOES Receiver
#3Is it possible to receive Solar Ultraviolet Imager (SUVI) images? Didn't find it in the documentation.
It's not. The SUVI data is not broadcast on the HRIT feed, only on the GRB (GOES ReBroadcast) feed. Receiving GRB requires more effort: minimum 10ft dish, dual circular polarized feed, DVB-S2 demodulator, and different software. Never tried this, but would make for a fun project.
Re: A Minimal LRIT GOES Receiver
#4Hi everybody, cool to see this submitted on HN. I'm around for questions so ask away.
Also beware that the guide is a little out of date:
1) the listed antenna is no longer available, but there are comparable ones for comparable or lower price, and
2) the SAWBird has been generally available for a couple of weeks.
Re: A Minimal LRIT GOES Receiver
#5So GOES looks to be an imagery satellite, right? And LRIT is some aspect of it's method of communication?
A few explanatory words in the title here, at the beginning of the article would really help. I'm surprised it made first page without them. The author's work is rather cool, though!
Re: A Minimal LRIT GOES Receiver
#6So GOES looks to be an imagery satellite, right? And LRIT is some aspect of it's method of communication? A few explanatory words in the title here, at the beginning of the article would really help. I'm surprised it made first page without them. The author's work is rather cool, though!
[GOES-R/GOES-16](https://en.wikipedia.org/wiki/GOES-16) as well as [GOES-S/GOES-17](https://en.wikipedia.org/wiki/GOES-17) are geostationary weather satellites operated by the NOAA.
They broadcast some of their imagery using a format they call LRIT or HRIT (High Rate Information Transmission). You can follow this guide to build a receiver using inexpensive components to tap into that stream.
Re: A Minimal LRIT GOES Receiver
#7So GOES looks to be an imagery satellite, right? And LRIT is some aspect of it's method of communication? A few explanatory words in the title here, at the beginning of the article would really help. I'm surprised it made first page without them. The author's work is rather cool, though!
Sorry, I deeplinked to a part of the docs that doesn't necessarily put everything in context. Mostly I thought the library and hardware setup are really cool, and that Earth imagery is spectacular
Re: A Minimal LRIT GOES Receiver
#8How many photos do these satellites take/send per day?
Re: A Minimal LRIT GOES Receiver
#9This guide is what got me diving into the world of software defined radio and telecommunications in general. Building this thing has been one of the most rewarding side projects. It really makes you appreciate how many interesting technologies and ideas are there between "the electromagnetic spectrum" and "bits per second".
Re: A Minimal LRIT GOES Receiver
#10How many photos do these satellites take/send per day?
Depends on the mode the satellite is operating in. Typically: a full disk image every 15 minutes, the continental USA every 5 minutes, and two selected "mesoscale" regions (they will move around based on interesting events) every minute or even 30 seconds. Not all these products are relayed through this downlink though. On HRIT you'll find a full disk image across 7 different spectral bands every 30 minutes, and mesoscale images across 3 different spectral bands every 15 minutes.
Next to this data, it also contains relayed images from GOES-15 (GOES-West), Himawari-8, EMWIN data, and NWS forecasts and plots.