Apollo-X User Manual Version 0.9
13
ASCII Position (Type AG)
In ASCII position format, only the most recent fix is sent at each interval, therefore it is most
efficient to have GPS and Iridium intervals equal.
AG, 9.67, 7.78, 0, 1686915004, 44.7466032, -63.3840900, 40.0, 38, 4,
332.9, 21.38, 3, 3.0
ASCII Position
AG
Specifies the message type
9.67
Voltage measurement taken before powering the Iridium modem
7.78
Loaded voltage of the power supply; minimum battery voltage
observed during the previous Iridium task
0
The timer in the scheduler used when the message was transmitted
1686915004
Unix time of the GPS position
44.7466032
Latitude, decimal degrees
-63.3840900
Longitude, decimal degrees
40.0
Altitude (m)
38
Max SNR recorded
4
Number of Satellites used during the fix
332.9
Bearing to the nearest 22.5°
21.38
Speed measurement in (m/s)
3
Time to fix (seconds)
3.0
Highest HDOP used during the fix
Default Message (Type DM)
The default message is transmitted at times when the device has no other data available to
send other than its internal sensor states, where applicable. This could be because the GPS is
not scheduled to run, or another factor has prevented a fix from being acquired.
Timestamp: 2023-06-21T11:02:05.000Z, Voltage Unloaded: 9.59, BatteryV:
7.94, Mode: Low Battery, isAlarm: true, Device Temperature (°C): 0,
Message Type: DM, Status: 33, No GNSS Position Stored: true, Daylight:
true
Default Message
Timestamp
Date and time in UTC of the latest position reading
Voltage Unloaded
Voltage measurement taken before powering the Iridium modem
BatteryV
Loaded voltage of the power supply; minimum battery voltage
observed during the previous Iridium task
Mode
The timer in the scheduler used when the message was transmitted
isAlarm
Displays if this is a state warranting an Alarm forward, if applicable
Device Temperature
Temperature read before transmission (not used)
Message Type
Displays the message format being transmitted
Status
A hex readout of the status bits that are enabled. The information
