sessions.csv

subject,date,session,setting,surface,event,location,sensor_count,placements,channels,sampling_rate_hz,samples_per_packet,transport,dongle_firmware,sensor_firmware,app_version,phone_model,bluetooth_devices,time_sync,phone_carry,calibration,gps,barometer,steps,h10_hr,h10_ecg,h10_acc,watch,duration_min,run_duration_min,run_duration_source,distance_source,distance_km,pace_min_km,hr_mean_bpm,hr_max_bpm,hr_source,cadence_mean_spm,cadence_source,loss_pct,effective_rate_hz,max_gap_s,long_gaps_per_hour,data_ends_early_s,terminated_early,time_sync_verdict,unreliable_sensors,phone_battery_start_pct,phone_battery_end_pct,phone_temp_start_c,phone_temp_end_c,sensor_voltage_start_v,sensor_voltage_end_v,sensor_temp_start_c,sensor_temp_end_c,n_files,size_mb,notes
S01,2026-09-07,R01,outdoor,pavement,,,4,Arm;Back;Left Foot;Right Foot,accel+gyro,100.0,5,DONGLE,0.98.0,0.100.0,0.1.11-exp,samsung Galaxy S24,headphones;watch,,pack,pre,True,True,True,False,False,False,True,61.4,61.4,phone_gps,phone_gps,7.21,8.52,156.0,170.0,fit3,151.0,fit3,0.59,99.31,0.31,31.3,4.2,False,,arm,,,,,4.17,4.17,,,12,109.2,"The wrist sensor (0000, labelled arm) came off mid-run when its tape failed and rode in a pocket or hand for most of the run: its stream is not wrist motion and its accelerometer clipping is handling. The right foot (3333) clipped 47 times (peak 23 g), the left foot (2222) never, possibly a mounting difference. Barometer at 24 Hz (later builds cap it at 1 Hz)"
S01,2026-09-12,R02,outdoor,pavement,parkrun,"Victoria Park parkrun, Kitchener",4,Back;Left Foot;Left Wrist;Right Foot,accel+gyro,100.0,5,DONGLE,0.98.0,0.100.0,0.1.12-exp,samsung Galaxy S24,headphones;watch,,pack,pre,True,True,True,True,True,True,True,44.3,44.3,phone_gps,reported,5.0,8.86,159.0,178.0,polar_h10,153.0,fit3,10.4,89.52,0.66,766.5,123.1,False,,,90.0,79.0,30.9,35.6,4.11,4.03,25.0,25.0,11,110.3,Foot clips re-mounted after R01 (bottom lace plus two more). Three sensors dropped in the last ~2 min and reconnected at session end (not battery). Phone GPS read 5.29 km on the 5.00 km course (+5.8 %); the watch read 5.00 km
S01,2026-09-14,R03,outdoor,pavement,,,4,Back;Left Foot;Left Wrist;Right Foot,accel+gyro,100.0,5,DONGLE,0.98.0,0.100.0,0.1.12-exp,samsung Galaxy S24,headphones;watch,,pack,pre,True,True,True,True,True,True,True,32.1,32.1,phone_gps,phone_gps,3.47,9.24,146.0,161.0,polar_h10,147.0,fit3,4.03,95.88,0.51,316.1,40.2,False,,,,,,,,,,,11,84.2,"The two foot sensors are about 0.3 s apart although time sync was on: timing between sensors is unreliable in this session, each sensor's own signal is fine"
S01,2026-09-14,R04,outdoor,pavement,,,4,Back;Left Foot;Left Wrist;Right Foot,accel+gyro,100.0,5,DONGLE,0.98.0,0.100.0,0.1.12-exp,samsung Galaxy S24,headphones;watch,,pack,pre,True,True,True,False,False,False,True,27.9,28.7,phone_gps,phone_gps,2.91,9.85,148.0,160.0,fit3,145.0,fit3,4.13,95.78,1.51,296.3,18.8,False,,,,,,,,,,,8,49.9,
S01,2026-09-17,R05,indoor,track,,,4,Back;Left Foot;Left Wrist;Right Foot,accel+gyro,100.0,5,DONGLE,0.98.0,0.100.0,0.1.12-exp,samsung Galaxy S24,none,BEACON_TIMESYNC,pack,pre,True,True,True,True,True,True,False,7.8,7.8,recording,,,,158.0,183.0,polar_h10,148.0,phone_steps,0.32,99.59,0.31,61.5,1.2,False,MISALIGNED,,73.0,72.0,32.3,27.4,4.15,4.13,30.5,29.0,11,21.0,
S01,2026-09-19,R06,outdoor,pavement,race,,4,Back;Left Foot;Left Wrist;Right Foot,accel+gyro,100.0,5,DONGLE,0.98.0,0.100.0,0.1.12-exp,samsung Galaxy S24,headphones,BEACON_TIMESYNC,pack,pre,True,True,True,True,True,True,False,15.2,,,,,,,,,154.0,phone_steps,6.61,93.31,0.71,410.3,237.8,True,MISALIGNED,,84.0,80.0,26.3,32.2,4.07,4.05,28.6,27.5,11,21.3,The recording ended about 15 min into the event
S01,2026-09-28,R07,outdoor,pavement,,,4,Back;Left Foot;Left Wrist;Right Foot,accel+gyro,100.0,5,DONGLE,0.98.0,0.100.0,0.1.12-exp,samsung SM-S926W,none,BEACON_TIMESYNC,pack,pre,True,True,True,False,False,False,False,37.4,37.4,phone_gps,phone_gps,4.24,8.83,,,,152.0,phone_steps,3.63,96.28,0.41,229.2,42.1,False,ALIGNED,,100.0,95.0,23.6,25.3,4.1,4.03,25.4,24.1,8,73.4,The second phone (streaming to Bluetooth headphones) was in the same waist pack for the first ~23 min: IMU packet loss was 3-8 % while it was there and ~0 % after it was taken out. Three of the four IMU files end ~40 s before the session
S01,2026-09-30,R08,outdoor,pavement,,,4,Back;Left Foot;Right Foot;Wrist,accel+gyro,100.0,5,DONGLE,0.102.0,0.102.0,0.1.13-exp,samsung SM-S926W,none,BEACON_TIMESYNC,hand,post,False,True,True,False,False,False,False,44.8,44.8,recording,,,,,,,151.0,phone_steps,0.71,99.21,0.31,40.2,7.4,False,ALIGNED,back,100.0,98.0,24.5,19.5,4.14,4.08,28.4,25.7,7,92.2,"Phone carried in the hand. GPS off, so no pace profile; the barometer and step counter were still logged. The back sensor was loose and re-seated several times: trunk measures such as vertical oscillation are unreliable, the feet are unaffected. The pre-run calibration walk did not register on the feet, so the post-run calibration is used"
S01,2026-10-03,R09,outdoor,pavement,parkrun,"Victoria Park parkrun, Kitchener",4,Back;Left Foot;Right Foot;Wrist,accel+gyro,100.0,5,DONGLE,0.102.0,0.102.0,0.1.13-exp,samsung SM-S926W,none,BEACON_TIMESYNC,pack,pre,False,False,False,False,False,False,True,20.2,41.0,reported,reported,5.0,8.2,160.0,178.0,fit3,151.0,fit3,0.0,99.91,0.01,0.0,108.6,True,ALIGNED,,90.0,88.0,23.8,23.5,4.08,4.05,28.6,26.2,5,37.4,"Dongle on a short USB cable; the second phone was in the same pack, powered off. The recording covers the first ~18 min of a ~41 min event: the sensor data then stopped with no error while sensors and dongle still reported connected; The watch was in airplane mode with no GPS, so its distance is an estimate and reads well above the 5.00 km course"
S01,2026-10-05,R10,outdoor,pavement,,,4,Back;Left Foot;Right Foot;Wrist,accel+gyro,100.0,5,DONGLE,0.102.0,0.102.0,0.1.13-exp,samsung SM-S926W,none,BEACON_TIMESYNC,pack,pre,False,False,False,False,False,False,True,33.1,33.0,fit3,fit3,4.46,7.39,157.0,171.0,fit3,149.0,fit3,1.87,98.05,0.36,103.6,8.9,False,ALIGNED,,81.0,80.0,25.0,22.1,4.06,4.02,25.9,28.6,5,66.5,"Phone carried in the waist pack, with a second phone in the pack powered off. GPS off, so no pace profile. IMU data loss was 1.7-2.1 % per sensor (effective rate 97.8-98.2 Hz of 100 Hz): 428-539 gaps per sensor, every one a whole number of 50 ms packets; 58-67 % of gaps were a single packet (50 ms), 98-99 % were 4 packets (200 ms) or fewer, and the longest was 0.3-0.4 s. The gaps cluster in about seven short episodes (rate dipping to ~70 Hz, each lasting up to ~1.5 min) that hit all four sensors at once, with full rate in between. Three of the four IMU files end 5-9 s before the session end."
S01,2026-10-08,R11,indoor,track,,,4,Back;Left Foot;Right Foot;Wrist,accel+gyro,100.0,5,DONGLE,0.102.0,0.102.0,0.1.13-exp,samsung SM-S926W,none,BEACON_TIMESYNC,hand,pre,False,False,False,False,False,False,True,13.5,14.0,fit3,fit3,2.03,6.9,,,,,,0.01,99.9,0.06,0.0,1.3,,MISALIGNED,,91.0,90.0,25.0,25.4,3.67,3.67,25.8,28.0,5,27.3,"Indoor track, training intervals alternating walking, jogging and running; phone carried in the hand. Phone GPS off, so no pace profile. IMU data loss was negligible (0.00-0.02 % per sensor). The beacon time sync did not take on three of the four sensors (stable offsets of roughly 0.2, 0.3 and 0.8 s against the wrist beacon for the whole session), so cross-sensor and bilateral timing metrics are withheld; per-sensor metrics are unaffected. The watch workout was started about half a minute after the recording and is a cross-check only."