Error about Celestrak 'Connection to celestrak.org timed out. (connect timeout=5)'))

[spanzetta]

This problem has been occurring regularly since yesterday.

2026-04-07T10:31:50.088691+02:00 allsky allskperiodic[318616]:
   ERROR in /home/admin/allsky/config/myFiles/modules/allsky_solarsystem.py:
      _fetch_tle_from_celestrak failed on line 957 - HTTPSConnectionPool(host='celestrak.org', port=443):
         Max retries exceeded with url: /NORAD/elements/gp.php?CATNR=25544
         (Caused by ConnectTimeoutError(<urllib3.connection.HTTPSConnection object at 0x7fff5a926710>,
         'Connection to celestrak.org timed out. (connect timeout=5)'))
2026-04-07T10:31:50.088914+02:00 allsky allskperiodic[318616]:
   ERROR in /home/admin/allsky/config/myFiles/modules/allsky_solarsystem.py:
      _calcSatellites failed on line 1053 - 0

[spanzetta]

anyone else with the same problem?

[Alex-developer]

It does this from time to time. Also make sure you are not requesting data too fast from them as they have a very strict rate limit.

Tru browsing to celestrak.org from another machine on the same network. If they have limited you you will see a message, if not its probably an issue at their end

[spanzetta]

Thanks for the reply..
You are right.. I can't browse even celestrak.org from the same network.
But consider that I was using the module (solar system) from at least 2 weeks.. and I didn't change anything (periodic timer is default 60) .. but 2 days ago it did stop to get data about ISS..
I now stopped that specific info (about ISS).. so I assume it will be "unblocked" at one point... and then will check again..

But I see another problem that I don't know if it could be related to the above..

I can't load satellite list (same module)..
Any idea?

[Alex-developer]

Thats the same issue as that uses data from celestrak.

I would remove iss from the module for at least 24 hours then re add it and see if it starts up again.

[spanzetta]

yes.. thanks..

and what can you tell me about satellite loading issue.. is it related to celestrak or is it something different?

[spanzetta]

.. and about the frequency of polling.. what is the suggested value ?
Apparently the default of 60 sec (periodic timer) is not appropriate..
Any suggestions?

[spanzetta]

It did start to work again only after a forced modem restart.. that caused an IP change..

Apparently Celestrak does block IP forever.. so you need to change IP to solve the problem

But now I am using 180 sec as frequency.. to avoid the same problem in the future (I hope)

[Alex-developer]

Thanks for the update. I might set a limit of 12 or 24 hours in the module to prevent this, the elements dont change that often anyway

Alex

[Apennine2]

Hi,

Unrelated to the OP's issue, but related to celestrak, I've been getting this error for about four days, and it won't pull data:

ERROR: _initSatellites failed on line 1354 - HTTPSConnectionPool(host='www.celestrak.com', port=443): Max retries exceeded with url: /NORAD/elements/gp.php?CATNR=25544 (Caused by SSLError(SSLCertVerificationError(1, '[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: certificate has expired (_ssl.c:992)'))) (April 21, 11:46:29 AM)

If I manually go to https://celestrak.org/NORAD/elements/gp.php?CATNR=25544 vs ".com", it works on my PC.

Is there any way to update the code to .org?

Thank you!

Chris

UPDATE: I changed line 1318 of allsky_overlay.py from "https://www.celestrak.com/..." to "https://celestrak.org/..." (removed www, and switched to .org) and that fixed the issue.

[lkomage]

Thanks for this; I was having the same issue.

[Alex-developer]

Hi,

Unrelated to the OP's issue, but related to celestrak, I've been getting this error for about four days, and it won't pull data:

ERROR: _initSatellites failed on line 1354 - HTTPSConnectionPool(host='www.celestrak.com', port=443): Max retries exceeded with url: /NORAD/elements/gp.php?CATNR=25544 (Caused by SSLError(SSLCertVerificationError(1, '[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: certificate has expired (_ssl.c:992)'))) (April 21, 11:46:29 AM)

If I manually go to https://celestrak.org/NORAD/elements/gp.php?CATNR=25544 vs ".com", it works on my PC.

Is there any way to update the code to .org?

Thank you!

Chris

UPDATE: I changed line 1318 of allsky_overlay.py from "https://www.celestrak.com/..." to "https://celestrak.org/..." (removed www, and switched to .org) and that fixed the issue.

Thanks for that.

I have already change this for the next release but not in the current release.

I will make the change in the current release over the weekend

Alex

[spanzetta]

@Alex-developer what about 2025.xx.xx?

I see that allsky_overlay.py for 2025.xx.xx is completelly different.. it's 709 line (so line 1318 doesn't exists) and I can't find any celestrak link there to change

[Alex-developer]

@Alex-developer what about 2025.xx.xx?

I see that allsky_overlay.py for 2025.xx.xx is completelly different.. it's 709 line (so line 1318 doesn't exists) and I can't find any celestrak link there to change

It was changed in v2025.xx.xx a long time ago. The code moved from the overlay to the solar system module

[spanzetta]

... and I see this new error... which I assume is related to the above