D-SAT telemetry and images

… not bad but not particularly good 😉

—- General tm:

TM_UTC = 1502741701 UnitID = 2
OBC temp= -1 ÂșC
panel_temp 1+= -22 ÂșC
panel_temp_2- = -17 ÂșC
panel_temp 3 = 22 ÂșC
panel_temp 4 = -29 ÂșC
—- ADCS tm:
ADC_tm_mode = 3
ADC_tm_sens_mag_1 = 0.000000
ADC_tm_sens_mag_2 = 0.000000
ADC_tm_sens_mag_3 = 0.000000
ADC_tm_sens_gyr_1 = 0.000000
ADC_tm_sens_gyr_2 = 0.000000
ADC_tm_sens_gyr_3 = 0.000000
ADC_tm_sens_sun_1 ( +X)= 0.000000
ADC_tm_sens_sun_2 ( -X)= 0.000000
ADC_tm_sens_sun_3 ( +Y)= 0.000000
ADC_tm_sens_sun_4 ( -Y)= 0.000000
ADC_tm_sens_sun_5 ( +Z)= 0.000000
ADC_tm_sens_sun_6 ( -Z)= 0.000000
—- ODS tm:
ODS_tm_mode = 0
ODS_tm_position_1 = 0.000000
ODS_tm_position_2 = 0.000000
ODS_tm_position_3 = 0.000000
ODS_tm_velocity_1 = 0.000000
ODS_tm_velocity_2 = 0.000000
ODS_tm_velocity_3 = 0.000000

—- EPS tm:
EPS_vboost_PV1 = 0.000000
EPS_vboost_PV2 = 0.000000
EPS_vboost_PV3 = 0.000000
EPS_V_bat = 7972.548828
EPS_cursun = 7972.548828
EPS_cursys = 7972.548828
EPS_output = {0, 0, 0, 0, 1, 0, 0, 1}
EPS_temp_TEMP = 5
—- COM tm:
bit_corr_tot = 0
byte_corr_tot = 2996
rx = 9145
rx_err = 266
tx = 3428
last_temp_a = 1
last_temp_b = 2
last_rssi = -99.000000
last_rferr = -2976
last_batt_volt = 800.980408
last_txcurrent = 1094.117676
sense_status = 255 {1, 1, 1, 1, 1, 1, 1, 1}
| Pole +X= OPEN
| Pole -Y= OPEN
| Pole +Y= OPEN
| Pole -X= OPEN
| RBF-3= REMOVED
| RBF-2= REMOVED

D-SAT realtime telemetry

frame_num:2615
---- General tm:

TM_UTC = 1502570896 UnitID = 1
OBC temp= -2 ÂșC
panel_temp 1+= -13 ÂșC
panel_temp_2- = -24 ÂșC
panel_temp 3 = -15 ÂșC
panel_temp 4 = -12 ÂșC
---- ADCS tm:
ADC_tm_mode = 1
ADC_tm_sens_mag_1 = 0.000000
ADC_tm_sens_mag_2 = 0.000000
ADC_tm_sens_mag_3 = 0.000000
ADC_tm_sens_gyr_1 = 0.000000
ADC_tm_sens_gyr_2 = 0.000000
ADC_tm_sens_gyr_3 = 0.000000
ADC_tm_sens_sun_1 ( +X)= 0.000000
ADC_tm_sens_sun_2 ( -X)= 0.000000
ADC_tm_sens_sun_3 ( +Y)= 0.000000
ADC_tm_sens_sun_4 ( -Y)= 0.000000
ADC_tm_sens_sun_5 ( +Z)= 0.000000
ADC_tm_sens_sun_6 ( -Z)= 0.000000
---- ODS tm:
ODS_tm_mode = 0
ODS_tm_position_1 = 0.000000
ODS_tm_position_2 = 0.000000
ODS_tm_position_3 = 0.000000
ODS_tm_velocity_1 = 0.000000
ODS_tm_velocity_2 = 0.000000
ODS_tm_velocity_3 = 0.000000

---- EPS tm:
EPS_vboost_PV1 = 0.000000
EPS_vboost_PV2 = 0.000000
EPS_vboost_PV3 = 0.000000
EPS_V_bat = 7935.293945
EPS_cursun = 7935.293945
EPS_cursys = 7935.293945
EPS_output = {0, 0, 0, 0, 1, 0, 0, 1}
EPS_temp_TEMP = 0
---- COM tm:
bit_corr_tot = 0
byte_corr_tot = 230
rx = 488
rx_err = 34
tx = 868
last_temp_a = -2
last_temp_b = -1
last_rssi = -76.000000
last_rferr = -5352
last_batt_volt = 800.980408
last_txcurrent = 929.411743
sense_status = 255 {1, 1, 1, 1, 1, 1, 1, 1}
| Pole +X= OPEN
| Pole -Y= OPEN
| Pole +Y= OPEN
| Pole -X= OPEN
| RBF-3= REMOVED
| RBF-2= REMOVED

D-SAT telemetry decoder

D-SAT was launched on June 23th, 2017 into a 500 km sun-synchronous orbit; before performing the final decommissioning maneuver it will host a few communication experiments in collaboration with an Italian university, high-level schools and a local hamradio community.
For more information on D-SAT, you can visit the mission’s website https://www.dsat.space. There is also a dedicated page for radiohams https://www.dsat.space/radiohams.

During this week they performed a SatAlert experiment that consist in the transmission of a “dummy” alert of a debris reentry.

Sae message saved to file Sae_msg_rcvd/sae_msg_rcvd_EPOCH_1500559064.sae
Message_type = 4
Protocol_version = 1
Print SAE MAMES
MessageID = 7
Alert ProviderId = 1
Notification Area Latitude, Nord-Sud = 0
Notification Area Latitude, deg = 45
Notification Area Latitude, min. = 37
Notification Area Latitude, sec. = 36
Notification Area Longitude, East-West = 0
Notification Area Longitude, deg = 36
Notification Area Longitude, min = 140
Notification Area Longitude, sec = 20
Notification Area Longitude, radius = 0
Message Priority = 15
NHT 1 = 4
Issuer = 3
Category = 0
NHT 2 = 1
Message Validity starts from 17/7/17 at 19:39:19
Message Validity ends at = 17/7/17 19:42:39
NHT 3 = 3
Language Id = 43
Message Length = 321

The ALERT MESSAGE is:
AT 2:54 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
A SEVERE THUNDERSTORM OVER SOUTH CENTRAL ALPINE COUNTY...OR ABOUT 18 MILES SOUTHEAST OF
KIRKWOOD...MOVING SOUTHWEST AT 5 MPH. HAIL...INTENSE RAIN AND STRONG DAMAGING WINDS ARE LIKELY WITH THIS STORM

… and finally I could decode a nice image 🙂


a stunning view of the Aegean Sea, Turkey on the bottom right corner, Crete in the bottom left and the Greek peninsula above