From the Sensor Data Table, click on the icon below to view the participant's GPS data:
The table lists samples in reverse chronological order, i.e. starting with the most recent. Only the first 100 samples are displayed. To download the complete data file for the participant, click on the "Download CSV" link.
Notes:
- If your account is set up to only collect GPS at the time of survey completion then the GPS coordinates will be in the Flat Data File along with the survey data.
- You may see more columns than are outlined in this guide. Different phones and services provide additional GPS data types. Here we cover the main ones.
Data Type | Definition |
Date/Time | Timestamp in local time (according to the phone) in milliseconds |
Event | |
| mEMA turns location service on/off as app goes into background/foreground. This is usually only active when the phone is only recording location data at the time of survey to conserve battery. |
| The phone is attempting to get the location services to run |
| When the app is engaged in periodic geotracking the location services are turned on/off |
| End user has turned off location services on phone |
| Satellite connection lost momentarily |
| GPS coordinates changed since last recording |
Enabled | The location tracking is turned on |
Type | Which types of location services were available at this time. Network = cell or wifi GPS = satellite |
Source | Which type was the source |
Accuracy | In meters. As supplied by source |
Latitude / Longitude | Location coordinates |
Timezone offset | Seconds from GMT |
Secs On / Off | Current settings (If Periodic Geotracking is enabled) |
Interval | In seconds. Minimum time interval between updates |
Distance | In meters. Minimum distance between updates |
Geofences | Number of Geofences active at time |