Hi all,
At one point, LabSat had published recordings of raw GNSS signals taken
during the 2015 leap second. I think these recordings have a lot of value
for understanding the behavior of the various GNSS systems during a leap
second.
However, LabSat's website has since been scrubbed of all mention of this.
The fact that it was once available is only visible on the Internet Archive:
I have one of these recordings (GLONASS), but I'm interested in all four of
them (GPS, GLONASS, BeiDou, merged). If anyone has these, please contact me
(on- or off-list). If I manage to find any more, I plan to host them for
the public.
Thank you,
Forrest Voight
Have you tried the WAYBACK Machine?
Just Google wayback.
cheers,
Neville Michie
On 30 Oct 2021, at 04:03, Forrest Voight forrest.voight@gmail.com wrote:
Hi all,
At one point, LabSat had published recordings of raw GNSS signals taken
during the 2015 leap second. I think these recordings have a lot of value
for understanding the behavior of the various GNSS systems during a leap
second.
However, LabSat's website has since been scrubbed of all mention of this.
The fact that it was once available is only visible on the Internet Archive:
I have one of these recordings (GLONASS), but I'm interested in all four of
them (GPS, GLONASS, BeiDou, merged). If anyone has these, please contact me
(on- or off-list). If I manage to find any more, I plan to host them for
the public.
Thank you,
Forrest Voight
time-nuts mailing list -- time-nuts@lists.febo.com -- To unsubscribe send an email to time-nuts-leave@lists.febo.com
To unsubscribe, go to and follow the instructions there.
The Wayback Machine wouldn't have archive these files, Labsat's recordings are huge, even compressed.
I can't promise, but I can check for these files. I recently cleaned up some Labsat playback files, but I may still have them on my work Labsat's SD card or HDD.
Now, what I'm not sure about is whether these captures were actual live captures, or were generated by their sim software - in which case they can be generated again. For basic testing it's as good as the real thing, but it's good to have a mix of SVs from different blocks, namely to have a mix of both 10-bit and 13-bit week counters.
Thanks,
Wojciech
--
Wojciech Owczarek
Original Message
From: namichie@gmail.com
Sent: 30 October 2021 01:37
To: time-nuts@lists.febo.com
Reply to: time-nuts@lists.febo.com
Cc: namichie2@gmail.com
Subject: [time-nuts] Re: Does anyone have LabSat's raw GNSS recordings of the 2015 leap second?
Have you tried the WAYBACK Machine?
Just Google wayback.
cheers,
Neville Michie
On 30 Oct 2021, at 04:03, Forrest Voight forrest.voight@gmail.com wrote:
Hi all,
At one point, LabSat had published recordings of raw GNSS signals taken
during the 2015 leap second. I think these recordings have a lot of value
for understanding the behavior of the various GNSS systems during a leap
second.
However, LabSat's website has since been scrubbed of all mention of this.
The fact that it was once available is only visible on the Internet Archive:
-
https://web.archive.org/web/20160308210938/https://www.labsat.co.uk/index.php/en/updates/news/135-the-2015-leap-second-labsat-scenarios-now-available
-
https://web.archive.org/web/20160403102309/http://labsat.co.uk/index.php/en/labsat-leap-second-recordings
I have one of these recordings (GLONASS), but I'm interested in all four of
them (GPS, GLONASS, BeiDou, merged). If anyone has these, please contact me
(on- or off-list). If I manage to find any more, I plan to host them for
the public.
Thank you,
Forrest Voight
time-nuts mailing list -- time-nuts@lists.febo.com -- To unsubscribe send an email to time-nuts-leave@lists.febo.com
To unsubscribe, go to and follow the instructions there.
time-nuts mailing list -- time-nuts@lists.febo.com -- To unsubscribe send an email to time-nuts-leave@lists.febo.com
To unsubscribe, go to and follow the instructions there.