-
Notifications
You must be signed in to change notification settings - Fork 16
New issue
Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.
By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.
Already on GitHub? Sign in to your account
METEOR M2 images #102
Comments
Please post your config for M2, are you using the right ppm for your RTL-SDR? Best |
@SA7BNT Wow, what a quick response! There are are few config file for M2:
|
OK, you may just use M2-1-72k.cgf. M2-2* is already dead :( Here can you get the some more information |
Ah shoot! Ok, I will try with your config. Many thanks! The next fly-over is at 8pm (BST), so I will wait to see how that works out. |
You welcome!! ;) |
BTW @ThomasBartleet my minElev = 30 |
Hi @SA7BNT , I tried with your config file, but I still got some the following picture: I have my min elavation at 50 degrees. What is the main cause for so much data loss? Do I need an amplifier between my antenna and my SDR? Increase the gain? Or is it just my antenna that is just pants? My next fly-over is now not until tomorrow morning. |
It looks like there might be some insight over on Reddit. I'll have a look at this at some point, but it seems to be hardware-related issues on the receiving end. In other words, my equipment is lacking. Thoughts? [EDIT] This other user also suggests that receiving hardware is a potential cause for the black lines. In his case, his machine couldn't run the VM and decode the signal, so it was missing frames. I think I am having the same issue. |
@ThomasBartleet i´m just running an SDR-RTL.com 50m 50 Ohm Coax (Aircell7) and the antenna is a homemade turnstile on hardware side. Is the RTL-SDR a known like SDR-COM or Nooelec?? Is the RTL-SDR running in idle time?? Asking because if not the RTL-SDR getting cold and then the ppm will drift away. Hope you understand. [EDIT] i´m running mlrpt on a Optiplex I5 NOT on a PI ;) Best |
Hi @SA7BNT ! I've got another pass later this morning, which should get me a better day-time picture. From this, it looks like that the MLRPT that AutoWX2 uses is too heavy for the RaspberryPi. I ended up using Just to answer your questions: I am using a NooElec dongle, and the program does not run anything while waiting for passes (maybe the PPM does drift a bit?). |
Just to show the effectiveness of the changes I made, below is the image from this morning: This beats the original images I was getting (example in the initial comments way above) using the current MLRPT. @filipsPL , is this worth looking into, or is it too much of an isolated case? |
@ThomasBartleet Could you share your meteor script & config ? Also running on Rpi and would like to give meteor another try. |
@0nnyx Sure! You can find the actual processing code on my fork over at GlassesToCSharp#1. You'll find I've retained a similar structure as the NOAA processing files. For additional features, I've had to modify the actual
Just a note, I'm not storing the images for each individual channel. The script only gets the image from combining the channels. |
Thanks, finally got my first acceptable meteor image. Definitely an improvement over mlrpt for Pi users |
@ThomasBartleet The default RGB values for medet on your repo systematically generate very red images. I guess you found a way to improve that. Just in case, I altered a bit the meteor_process.sh to have false colored during daylight (64 & 65 only) and infrared (68 only) when sun is down:
Added 180 degrees rotation for evening images: the brighter part (sunlit) should be west and not east. I don't find a sunrise/set very useful as you can generate both visible & infrared images. |
@0nnyx Yes, I realised they were a bit red-ish, and I was going to look into it, but never got around it. Your bit of code looks promising! It'll definitely help get night images as well as day images. I've got a pass tomorrow morning, so I will see how that works out. Ultimately, maybe we can use some open-source sunrise/sunset API (for example, this one) to determine when a user will be in the dark when the M2 satellite is overhead ( |
We may use a self hosted solution, such as astral: |
maybe an offline-solution for that would be better: predict can do that
regards peter
--
Disclaimer: May be opened and read by the NSA, CIA, GCHQ, KGB, BND, and
whoever else it may NOT concern.
Am Di., 16. März 2021 um 08:52 Uhr schrieb filips ***@***.***
…:
Ultimately, maybe we can use some open-source sunrise/sunset API (for
example, this one <https://sunrise-sunset.org/api>) to determine when a
user will be in the dark when the M2 satellite is overhead (#TODO).
We may use a self hosted solution, such as astral:
https://pypi.org/project/astral/1.2/
https://astral.readthedocs.io/en/latest/#sun
—
You are receiving this because you are subscribed to this thread.
Reply to this email directly, view it on GitHub
<#102 (comment)>,
or unsubscribe
<https://github.com/notifications/unsubscribe-auth/AAQ6LUOQTOFRYX23Y3O3NV3TD4E5TANCNFSM4PZD5O2Q>
.
|
Meteor will only show visible channels until September - see http://happysat.nl/Meteor/html/Meteor_Status.html - so best to keep medet with the default RGB values 66 65 64 and expect all evening images to be useless for the next 5 months. |
@0nnyx Good shout! That should make things much easier (and better coloured) for now. |
In case anyone still has Meteor in their wanted passes, only the new N2-3 satellite is active - see happysat.nl page for details. In terms of decoding, mlrpt software is outdated, extremely slow (taking ~1hour on Pi3) and doesn't produce the best results. Satdump produces the best results but isn't suited for automated gallery processing.
Meteor_demod & decode is easy to integrate for automated gallery.
|
Does anyone have the best current settings on Meteor? |
HI Onnyx, |
@OK1SLM I got a bad image (but still and image) from M2-3 on Friday 26 Jan. However, don't expect great images from that satellite. If you google it, you'll read that the satellite lrpt antenna failed to deploy completely. |
I have a QFH antenna with a preamplifier, but the program keeps restarting when I receive Meteor, I have no idea if I should edit something in the script. |
Here are my scripts, requiring meteor_demod + meteor_decode from https://github.com/dbdexter-dev modules/meteor-m2/meteor_record.sh
modules/meteor-m2/meteor_process.sh
|
For anyone interested, a new meteor satellite METEOR-M2-4 has been launched and is currently in testing phase. |
Hey 0nnyx, did you get img with this setup and autowx2 ? Best |
I'm sad that this project is dead. I switched to the https://github.com/jekhokie/raspberry-noaa-v2 project |
The project is not dead. The issue with recording and interpreting METEOR (or any other signal) is out of the scope of this project and the developer. |
Hi all,
I'm getting NOAA images absolutely fine, but I'm getting METEOR images like so:
Does anyone have any suggestions as to why this is happening and how I can improve this? This reddit post suggest removing
lna4all
, but I can't find any usage of it.I'm using this TA-1 cross-dipole antenna to receive my signals, which is connected to my RTL-SDR, which is connected to my RaspberryPi.
TIA!
The text was updated successfully, but these errors were encountered: