TRISAT-R is still active!

EU1SAT · April 24, 2025, 3:09pm

TRISAT-R RAW Telemetry

302 Frames uploaded.

Huge thanks UZ7HO for new SoundModem!!! :
http://uz7.ho.ua/trisatr.zip

![изображение|560x426]

(upload://kgvVABbIHmIvbw9KtL54HR6Tuck.jpeg)

PE0SAT · April 24, 2025, 4:00pm

Thanks Vlad, yes it is, the last one of the satellites in MEO.

I need to give it some attention because it has a TLE lost status and need to correct them with some observations.

Jan | PE0SAT

EU1SAT · April 24, 2025, 4:08pm

It flies about 5 minutes earlier than predicts old TLE.

PE0SAT · April 24, 2025, 4:33pm

yo4dft · April 24, 2025, 6:52pm

Observation #11473184

Cristian - YO4DFT

PE0SAT · April 24, 2025, 7:14pm

Using three passes with signals to get the following TLE set.

This satellite also seems to suffer some issue’s, the LO keeps jumping making the data point selection a bit difficult.

TRISAT-R
1 53108U          25114.60467797  .00000000  00000-0  00000-0 0    09
2 53108  70.1728  85.8053 0013113  84.6879 326.3229  6.42348779    01

I need more obs to get a better match and also correct possible errors.

Jan | PE0SAT

EU1SAT · April 24, 2025, 10:39pm

New TLE very good now!

PE0SAT · April 25, 2025, 7:13am

We have some frequency drift

obs: https://network.satnogs.org/observations/10830902/ 2024-12-28 12:19:14

obs: https://network.satnogs.org/observations/11474475/ 2025-04-24 22:29:44

pu4elt · April 25, 2025, 8:01pm

Good TLE

EU1SAT · June 13, 2025, 11:47am

TRISAT-R New Old TLE

Very old TLE is very suitable now:

TRISAT-R
1 53108U 22080D   22364.59820797 -.00000003  00000-0  00000-0 0  9997
2 53108  70.1723  18.3848 0013109 224.7552 135.2050  6.42152596 10829

PE0SAT · June 13, 2025, 2:35pm

Using the TLE you shared and updated the epoch:

TRISAT-R
1 53108U 22080D   25164.43750000  .00000000  00000-0  00000-0 0    09
2 53108  70.1723  68.0769 0013203  29.9127  11.4181  6.42152585    08

New epoch:

# Satellite ID = 53108
# Satellite designation = 22080D  
# Epoch year = 2025 day = 164.43750000
# Eccentricity = 0.0013203
# Equatorial inclination = 70.1723 deg
# Argument of perigee = 29.9127 deg
# Mean anomaly = 11.4181 deg
# Right Ascension of Ascending Node = 68.0769 deg
# Mean Motion (number of rev/day) = 6.42152585
# First derivative of mean motion = 0.000000e+00
# Second derivative of mean motion = 0.000000e+00
# BSTAR drag = 0.0000e+00
# Orbit number = 0

EU1SAT · June 13, 2025, 3:15pm

TRISAT-R Now

PE0SAT · June 13, 2025, 6:40pm

Checking this morning pass with these TLE and they are looking pretty good.

@fredy can you change the TRISAT-R TLE with the following data.

TRISAT-R
1 53108U 22080D   25164.43750000  .00000000  00000-0  00000-0 0    09
2 53108  70.1723  68.0769 0013203  29.9127  11.4181  6.42152585    08

fredy · June 13, 2025, 8:09pm

The new TLE has been added in DB and Network. Thank you!