Drop second_phone column; phone_model for R01-R06 (Galaxy S24, reported); trim notes; new card blurb

README.md

@@ -31,9 +31,8 @@ platform, which runs on Android phones and Windows PCs, across deliberately vari
 tracked run over run for open research on running performance, fatigue and injury prevention.
 
 > In 2025, my doctor gave me "the talk." You know the one. The one where I need to exercise more and
-> eat better. So I picked up running to stay fit, and somewhere along the way I thought: I'm a
-> biomechanics engineer, and I work for a company that makes IMU motion sensors. Why not take some
-> measurements? And here we are.
+> eat better. So I picked up running, and somewhere along the way I thought: I'm a biomechanics
+> engineer, and I work for a company that makes IMU motion sensors. Why not take some measurements?
 
 ## Two purposes
 

data/context/session_context.csv

@@ -1,10 +1,10 @@
-subject,session,date,setting,surface,event,location,other_bluetooth_reported,sensor_firmware_reported,dongle_firmware_reported,phone_carry,second_phone,calibration,terminated_early,unreliable_sensors,clock,gps,time_method,time_sync_mode,time_sync_verdict,samples_per_packet,phone_model,bluetooth_devices,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,notes
-S01,R01,2026-09-07,outdoor,pavement,,,headphones;watch,0.100.0,0.98.0,pack,none,pre,False,arm,synthetic,profile,first_sample_anchor,,,,,,,,,,4.17,4.17,,,"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,R02,2026-09-12,outdoor,pavement,parkrun,"Victoria Park parkrun, Kitchener",headphones;watch,0.100.0,0.98.0,pack,none,pre,False,,synthetic,profile,first_sample_anchor,,,,,,90,79,30.9,35.6,4.11,4.03,25.0,25.0,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,R03,2026-09-14,outdoor,pavement,,,headphones;watch,0.100.0,0.98.0,pack,none,pre,False,,synthetic,profile,first_sample_anchor,,,,,,,,,,,,,,"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,R04,2026-09-14,outdoor,pavement,,,headphones;watch,0.100.0,0.98.0,pack,none,pre,False,,synthetic,profile,first_sample_anchor,,,,,,,,,,,,,,
-S01,R05,2026-09-17,indoor,track,,,none,0.100.0,0.98.0,pack,none,pre,False,,synthetic,profile,first_sample_anchor,HARDWARE_TS_TB,MISALIGNED,,,,73,72,32.3,27.4,4.15,4.13,30.5,29.0,
-S01,R06,2026-09-19,outdoor,pavement,race,,headphones,0.100.0,0.98.0,pack,none,pre,True,,synthetic,profile,first_sample_anchor,HARDWARE_TS_TB,MISALIGNED,,,,84,80,26.3,32.2,4.07,4.05,28.6,27.5,The recording ended about 15 min into the event
-S01,R07,2026-09-28,outdoor,pavement,,,,0.100.0,0.98.0,pack,on,pre,False,,synthetic,profile,first_sample_anchor,HARDWARE_TS_TB,ALIGNED,,samsung SM-S926W,none,100,95,23.6,25.3,4.1,4.03,25.4,24.1,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 (under investigation)
-S01,R08,2026-09-30,outdoor,pavement,,,,,,hand,none,post,False,back,synthetic,profile,first_sample_anchor,HARDWARE_TS_TB,ALIGNED,5,samsung SM-S926W,none,100,98,24.5,19.5,4.14,4.08,28.4,25.7,"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,R09,2026-10-03,outdoor,pavement,parkrun,"Victoria Park parkrun, Kitchener",,,,pack,off,pre,True,,synthetic,profile,first_sample_anchor,HARDWARE_TS_TB,ALIGNED,5,samsung SM-S926W,none,90,88,23.8,23.5,4.08,4.05,28.6,26.2,"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 (under investigation)"
+subject,session,date,setting,surface,event,location,other_bluetooth_reported,sensor_firmware_reported,dongle_firmware_reported,phone_model_reported,phone_carry,calibration,terminated_early,unreliable_sensors,clock,gps,time_method,time_sync_mode,time_sync_verdict,samples_per_packet,phone_model,bluetooth_devices,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,notes
+S01,R01,2026-09-07,outdoor,pavement,,,headphones;watch,0.100.0,0.98.0,samsung Galaxy S24,pack,pre,False,arm,synthetic,profile,first_sample_anchor,,,,,,,,,,4.17,4.17,,,"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,R02,2026-09-12,outdoor,pavement,parkrun,"Victoria Park parkrun, Kitchener",headphones;watch,0.100.0,0.98.0,samsung Galaxy S24,pack,pre,False,,synthetic,profile,first_sample_anchor,,,,,,90,79,30.9,35.6,4.11,4.03,25.0,25.0,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,R03,2026-09-14,outdoor,pavement,,,headphones;watch,0.100.0,0.98.0,samsung Galaxy S24,pack,pre,False,,synthetic,profile,first_sample_anchor,,,,,,,,,,,,,,"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,R04,2026-09-14,outdoor,pavement,,,headphones;watch,0.100.0,0.98.0,samsung Galaxy S24,pack,pre,False,,synthetic,profile,first_sample_anchor,,,,,,,,,,,,,,
+S01,R05,2026-09-17,indoor,track,,,none,0.100.0,0.98.0,samsung Galaxy S24,pack,pre,False,,synthetic,profile,first_sample_anchor,HARDWARE_TS_TB,MISALIGNED,,,,73,72,32.3,27.4,4.15,4.13,30.5,29.0,
+S01,R06,2026-09-19,outdoor,pavement,race,,headphones,0.100.0,0.98.0,samsung Galaxy S24,pack,pre,True,,synthetic,profile,first_sample_anchor,HARDWARE_TS_TB,MISALIGNED,,,,84,80,26.3,32.2,4.07,4.05,28.6,27.5,The recording ended about 15 min into the event
+S01,R07,2026-09-28,outdoor,pavement,,,,0.100.0,0.98.0,,pack,pre,False,,synthetic,profile,first_sample_anchor,HARDWARE_TS_TB,ALIGNED,,samsung SM-S926W,none,100,95,23.6,25.3,4.1,4.03,25.4,24.1,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,R08,2026-09-30,outdoor,pavement,,,,,,,hand,post,False,back,synthetic,profile,first_sample_anchor,HARDWARE_TS_TB,ALIGNED,5,samsung SM-S926W,none,100,98,24.5,19.5,4.14,4.08,28.4,25.7,"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,R09,2026-10-03,outdoor,pavement,parkrun,"Victoria Park parkrun, Kitchener",,,,,pack,pre,True,,synthetic,profile,first_sample_anchor,HARDWARE_TS_TB,ALIGNED,5,samsung SM-S926W,none,90,88,23.8,23.5,4.08,4.05,28.6,26.2,"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"

data/data_dictionary.md

@@ -156,7 +156,6 @@ them, so the folders are anonymous on their own and this file sets the release's
 | `other_bluetooth_reported` | other Bluetooth devices on the phone as the participant remembers them (`none`, `headphones`, `watch`, `other`; `;`-separated), for sessions recorded before the app logged them; otherwise `null` |
 | `sensor_firmware_reported`, `dongle_firmware_reported` | firmware versions for sessions whose app build did not record them (`x.y.z`); otherwise `null`. `sessions.csv` uses the recorded value where there is one |
 | `phone_carry` | where the recording phone was: `pack` (waist pack) or `hand` |
-| `second_phone` | another phone carried with it: `none`, `off` (powered off) or `on` |
 | `calibration` | which calibration recording the metrics used: `pre` (before the run) or `post` (after it; when the pre-run one was unusable). Calibration recordings are not released |
 | `terminated_early` | `true` when the recording did not cover the whole run or event |
 | `unreliable_sensors` | `;`-list of placements whose data should not be used in that session (e.g. a sensor that came loose); `null` when all are usable |
@@ -165,7 +164,7 @@ them, so the folders are anonymous on their own and this file sets the release's
 | `time_method` | how `time` was placed on the host clock (1.2.1): `first_sample_anchor` |
 | `time_sync_mode`, `time_sync_verdict` | the sensor time-sync mode (e.g. `HARDWARE_TS_TB`) and its result: `ALIGNED` when every sensor's clock agreed with the reference sensor's within 50 ms at the end of the session, else `MISALIGNED`. `MISALIGNED` means timing *between* sensors (e.g. left vs right foot) is unreliable in that session; each sensor's own signal is unaffected. `null` when that app build did not record it |
 | `samples_per_packet` | samples per radio packet, for recordings whose `meta-summary.json` (schema 2) does not carry it |
-| `phone_model` | the recording phone (manufacturer and model) |
+| `phone_model` | the recording phone (manufacturer and model; for sessions before 2026-09-28, as reported by the participant) |
 | `bluetooth_devices` | other Bluetooth devices connected to the phone during the session, as recorded by the app: `;`-list of `headphones` / `watch` / `other`, or `none`; `null` for app builds before 2026-09-21 |
 | `phone_battery_start_pct`, `phone_battery_end_pct`, `phone_temp_start_c`, `phone_temp_end_c` | the recording phone's battery level and temperature at the start and end |
 | `sensor_voltage_start_v`, `sensor_voltage_end_v` | the LEVEL sensors' battery voltage at the start and end of the session: the lowest across the sensors (V) |
@@ -214,7 +213,7 @@ One row per session; columns in groups, read left to right.
 | | `transport`, `dongle_firmware`, `sensor_firmware`, `app_version` | how the data travelled, and versions |
 | | `phone_model`, `bluetooth_devices` | host phone, and the other Bluetooth devices sharing its radio as a `;`-list of `none` / `headphones` / `watch` / `other` (from the app's record; for sessions before 2026-09-21, from the participant's report); blank = unknown |
 | | `time_sync` | time-sync mode (blank = not recorded by that app build) |
-| | `phone_carry`, `second_phone`, `calibration` | from `context/session_context.csv` |
+| | `phone_carry`, `calibration` | from `context/session_context.csv` |
 | Data available | `gps`, `barometer`, `steps` | `true` when the session has that phone file (`gps` = the coordinate-free `pace_profile.csv`) |
 | | `h10_hr`, `h10_ecg`, `h10_acc` | `true` when the session has that Polar H10 file |
 | | `watch` | `true` when the session has the Fit3 files (`fit3/`) |

scripts/lvl_running/catalog.py

@@ -211,13 +211,13 @@ def session_row(run_dir: str, data_root: str) -> dict:
                             or info.get("dongle_firmware_reported") or None),
         "sensor_firmware": _join(s.get("firmwareVersion") for s in sensors) or info.get("sensor_firmware_reported") or None,
         "app_version": app.get("versionName"),
-        "phone_model": info.get("phone_model"),
+        "phone_model": info.get("phone_model") or info.get("phone_model_reported"),   # app record, else reported
         # recorded by the app (builds from 2026-09-21), else the participant's report; blank = unknown
         "bluetooth_devices": info.get("bluetooth_devices") or info.get("other_bluetooth_reported"),
         # blank = not recorded (app builds before 2026-09-16 did not log it), not "off"
         "time_sync": info.get("time_sync_mode") or ({True: "on", False: "off"}.get(settings.get("time_sync"))),
         # how it was carried / calibrated (from context)
-        "phone_carry": info.get("phone_carry"), "second_phone": info.get("second_phone"),
+        "phone_carry": info.get("phone_carry"),
         "calibration": info.get("calibration"),
         # data available: one column per optional file type (the LEVEL sensors are sensor_count)
         **_available(run_dir),

sessions.csv

@@ -1,10 +1,10 @@
-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,second_phone,calibration,gps,barometer,steps,h10_hr,h10_ecg,h10_acc,watch,duration_min,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,,headphones;watch,,pack,none,pre,True,True,True,False,False,False,True,61.4,7.21,8.52,156.0,170.0,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,,headphones;watch,,pack,none,pre,True,True,True,True,True,True,True,44.3,5.29,8.38,159.0,178.0,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,,headphones;watch,,pack,none,pre,True,True,True,True,True,True,True,32.1,3.47,9.24,146.0,161.0,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,,headphones;watch,,pack,none,pre,True,True,True,False,False,False,True,27.9,2.91,9.85,148.0,160.0,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,,none,HARDWARE_TS_TB,pack,none,pre,True,True,True,True,True,True,False,7.8,,,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,,headphones,HARDWARE_TS_TB,pack,none,pre,True,True,True,True,True,True,False,15.2,1.94,7.85,,,,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,HARDWARE_TS_TB,pack,on,pre,True,True,True,False,False,False,False,37.4,4.24,8.83,,,,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 (under investigation)
-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,HARDWARE_TS_TB,hand,none,post,False,True,True,False,False,False,False,44.8,,,,,,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,HARDWARE_TS_TB,pack,off,pre,False,False,False,False,False,False,False,20.2,,,,,,,,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 (under investigation)"
+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,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,61.4,7.21,8.52,156.0,170.0,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,44.3,5.29,8.38,159.0,178.0,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,32.1,3.47,9.24,146.0,161.0,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,27.9,2.91,9.85,148.0,160.0,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,HARDWARE_TS_TB,pack,pre,True,True,True,True,True,True,False,7.8,,,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,HARDWARE_TS_TB,pack,pre,True,True,True,True,True,True,False,15.2,1.94,7.85,,,,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,HARDWARE_TS_TB,pack,pre,True,True,True,False,False,False,False,37.4,4.24,8.83,,,,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,HARDWARE_TS_TB,hand,post,False,True,True,False,False,False,False,44.8,,,,,,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,HARDWARE_TS_TB,pack,pre,False,False,False,False,False,False,False,20.2,,,,,,,,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"