PHASMA Mission (PHASMA-LAMARR & PHASMA-DIRAC)

TLE update based on space-track.org analyst catalog (88118 for PHASMA-LAMARR, 88126 for PHASMA-DIRAC):

PHASMA-LAMARR
1 98530U          25349.18511803 +.00010842 +00000+0 +55243-3 0 00273
2 98530  97.4378  60.8828 0005905 301.6390  58.4267 15.16937313002494
PHASMA-DIRAC
1 98529U          25349.18243569 +.00011121 +00000+0 +56203-3 0 00236
2 98529  97.4349  60.8815 0005143 308.5257  51.5515 15.17222209002490
2 Likes

Updated TLE sets based on space-track.org analyst catalog (88118 for PHASMA-LAMARR, 88126 for PHASMA-DIRAC):

PHASMA-LAMARR
1 98530U          25349.44897407 +.00010869 +00000+0 +55370-3 0 00280
2 98530  97.4374  61.1420 0005958 300.4643  59.6001 15.16943841002535
PHASMA-DIRAC
1 98529U          25349.71004885 +.00010797 +00000+0 +54559-3 0 00242
2 98529  97.4349  61.3991 0005145 306.1021  53.9736 15.17233595002576
1 Like

Daily Report 2025-12-14,15,16:

PHASMA-DIRAC:
We continued gathering telemetry, everything looks good.
During the morning pass, we changed the UHF downlink of the satellite to MSK for getting better communication.
Next steps, we continue getting more telemetry data in the next passes and verify that the change to MSK works as it should.
TLE have been updated following object 88126 from space-track.org analyst catalog, still seems the one that fits best.

PHASMA-LAMARR:
On Saturday and Sunday pass, we didn’t have any good passes. We still got in S-band signals and with the changed interval (35s instead the initial 1min), Yesterday we took the decision to move the S-band signal from 400k data rate to 50k. The change wasn’t saved in order to get also the information if the satellite reboots or not. The command was sent and acknowledged through UHF and we’ve seen immediately the change in S-band.
The signals in S-band are now at 50k and with better SNR. Unfortunately the IQ we got from the yesterday’s high elevation pass had some issues, it shows the signals with good SNR but they are chopped.
The cause could be either in satellite side or in the station side, the most possible scenarios some lost samples due to network issues or some sdr overflows. Fortunately on both today’s passes the S-band signals were intact and specifically on the second pass we got very good SNR and some responds. We are now in the process of uploading the IQ file and analyze it. Also we verified that the satellite hasn’t reboot.
On the other hand, on UHF it seems that there is an issue but difficult to say what’s exactly going on, as we need more telemetry data.
Next steps, there are some thoughts for actions but we are going to play it safe and wait to decode some more telemetry to get a better understanding what’s going on and then take decisions.
TLE have been updated following object 88118 from space-track.org analyst catalog, still the object fits best.

Ground Segment:
Both phasma stations looks good in condition. Calibration of hsgr station looks good and the bypass of relays works perfectly.
In SatNOGS side we continue to get good observations and use them to produce new TLE or compare the different TLE from space-track.org analyst list.

4 Likes

Updated TLE for PHASMA-LAMARR:

PHASMA-LAMARR
1 98530U          25350.10860943 +.00011925 +00000+0 +60678-3 0 00292
2 98530  97.4375  61.7892 0005940 297.4493  62.6136 15.16961925002631

Updated TLE sets based on space-track.org analyst catalog (88118 for PHASMA-LAMARR, 88126 for PHASMA-DIRAC):

PHASMA-LAMARR
1 98530U          25351.16401264 +.00013256 +00000+0 +67347-3 0 00307
2 98530  97.4377  62.8249 0006096 292.8579  67.2011 15.16987841002793
PHASMA-DIRAC
1 98529U          25351.16096049 +.00014013 +00000+0 +70601-3 0 00259
2 98529  97.4349  62.8230 0005144 299.8205  60.2517 15.17274080002795
3 Likes

Updated TLE sets based on space-track.org analyst catalog (88118 for PHASMA-LAMARR, 88126 for PHASMA-DIRAC):

PHASMA-LAMARR
1 98530U          25352.15343325 +.00014079 +00000+0 +71437-3 0 00321
2 98530  97.4378  63.7958 0006101 288.8939  71.1633 15.17017874002945
PHASMA-DIRAC
1 98529U          25352.15019594 +.00013881 +00000+0 +69882-3 0 00272
2 98529  97.4349  63.7939 0005080 295.5411  64.5297 15.17302311002940
1 Like

With the published TLE from space-track.org we have:

PHASMA-LAMARR
66673 with another possible candidate 66680

PHASMA-DIRAC
66681 with another possible candidate 66684

These are not identifications since the NORAD IDs are not yet assigned to the objects and may be swapped.

3 Likes

The last days it seems that the object 66673 follows a strange path. I’m currently checking what’s going on. after completing it I’ll post a detailed analysis, until then and temporarily I’m going to change PHASMA-LAMARR entry in DB to follow object 66669.

2 Likes

We have verified that PHASMA-LAMARR is not 66673 object any more through the latest observation on which we received it by following 66669 when 66673 wasn’t on the field of view for at least 3-4min. We are performing further analysis to try and locate the new object we should follow.

2 Likes

On the latest TLE sets from space-track.org, 66673 seems to have returned to the expected/right position and fits very good that latest PHASMA-LAMARR observations.

It looks like that this was something temporary, maybe a miscalculation in some objects on space-track side and things are back to normal.

I’m going for now to change back following 66673 for PHASMA-LAMARR, however I’ll keep an eye on it. If 66673 stays consistent I’m going to proceed and finalize the identification in the next days.

2 Likes

Object 66673 stays consistent and giving us a lot of good PHASMA-LAMARR observations on both UHF and S-band. However, based on some other cases similar to what happened to PHASMA-LAMARR, I’m going to wait for 4-5 days before finalizing the identification, just to be sure that nothing else will change dramatically.

2 Likes

@tammojan and I just observed PHASMA-LAMARR with the Dwingeloo telescope on UHF (vertical and horizontal polarization) and we think we have good detections.

Observations are below.

SatNOGS Doppler corrected IQ is at SatNOGS IQ data and raw 1Msps IQ is at SatNOGS IQ data in SigMF format.

8 Likes

PHASMA satellites are now identified, we are in communication with space-track.org in order to show up identified in their catalog.

PHASMA-LAMARR is OBJECT H(66673) based on Network and 3rd party observations. There are also ikhnos analysis results that verify the identification.

PHASMA-DIRAC is OBJECT R(66681) based on Network and 3rd party observations. There are also ikhnos analysis results that verify the identification.

9 Likes