One more update after the pass over Indonesia:
TUBIN
1 48900U 21059X 25349.97047764 .00000000 00000-0 43499-3 0 00
2 48900 97.6607 179.0930 0004381 263.7643 91.8919 16.45028811 07
tubin_349_v14.dat (2.3 KB)
sites.txt (12.1 KB)
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From the pass over US and India:
TUBIN
1 48900U 21059X 25350.03435642 .00000000 00000-0 44442-3 0 04
2 48900 97.6607 179.1700 0006171 263.7643 110.0614 16.47123671 00
sites.txt (12.1 KB)
tubin_349_v16.dat (3.3 KB)
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Very nice fit, -0.28 seconds offset to GNSS in our Svalbard pass just now 
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6 frames to @satnogs from em12jw. There seemed to be another sat 10 kHz down band which I thought at first were tle artifact. but still going
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TLE update from the pass over US:
TUBIN
1 48900U 21059X 25350.05725568 .00000000 00000-0 41490-3 0 05
2 48900 97.6607 179.2160 0008360 263.7643 245.7997 16.48506193 08
tubin_350_v1.dat (1.8 KB)
sites.txt (12.1 KB)
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TUBIN. Max. Elev. 2°, Alt. ~152 km according current TLE. QRM.
13 Frames uploaded.
Good TLE now! TNX!!!
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TLE update from passes over Europe and US:
TUBIN
1 48900U 21059X 25350.11675761 .00000000 00000-0 12999-2 0 02
2 48900 97.6607 179.1250 0008252 263.7643 238.8326 16.53034865 04
sites.txt (12.1 KB)
tubin_350_v3.dat (1.2 KB)
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One more update:
TUBIN
1 48900U 21059X 25350.16027120 .00000000 00000-0 28834-3 0 03
2 48900 97.6607 179.3154 0007001 263.7643 137.5895 16.55483315 06
tubin_350_v5.dat (1.7 KB)
sites.txt (12.1 KB)
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A little more accurate TLE:
TUBIN
1 48900U 21059X 25350.16296893 .00000000 00000-0 40705-3 0 09
2 48900 97.6607 179.4516 0008360 263.7643 153.6845 16.58493193 00
sites.txt (12.1 KB)
tubin_350_v6.dat (2.3 KB)
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At this pass, around 05:20 UTC this morning, I wasn’t able to receive a signal from the bird.
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Indeed, none of the stations during the last pass over Europe has received any signal.
The last successful observation is SatNOGS Network - Observation 12981014 by 2937 - WH6GVF UHF station.
The last observations with decoded beacons are:
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Thank you all and specifically @fredy for all your support! The last frames we were able to decode were in Berlin at 2025-12-16 03:52:49 and in Svalbard at 2025-12-16 04:01:47.
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superb tle from @fredy. wondering what parameter used to generate tle for decayed sat. how to fit b* drag, etc. congratz for TUBIN team. great sat.
save link here. for archieved . last decode beacon over my station 8 hours ago. is the decode data valid?
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And thank you @julianharbeck and the Tubin team for engaging this worldwide community in watching and helping contribute data as Tubin completed the mission. Best Wishes foe future missions.
Bob
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Sorry about the 10:40:59 UTC entries on the SatNogs upload list… no marks on the waterfall so they’re obviously trash. I’m monitoring way ahead of when the TLE would have placed TUBIN here since it of course would speed up dramatically if this was the last orbit. With no AX.25 address to filter against, can’t say that there won’t be more ‘K4KDR’ entries this morning. Unless something changes visually, please purge my uploads.
Congrats to everyone who got the last several decodes and of course to the Team for all that this satellite accomplished!
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We are preparing the TUBIN Re-Entry QSL cards, for those that have received TUBIN and want one and we did not had direct contact yet, please sent me a message with an email address, time of reception and callsign 
@pu4elt @bali @EU1SAT @N6RFM @K4KDR @PE0SAT and of course also all others that haven’t written in this topic yet
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I’m not sure if my last report reached your SiDS server, can I get the QSL?
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Hi!
Thank you! 73 W6MSU@ARRL.net
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