26 May 2023 (JY)

Upgraded to MDAS Acquisition System.

System: MDAS v1.0
Sensor: Bartington Mag03
Data Acquisition System: MDAS v1.0 
Logging software: BECA v1.0
Operator: Bureau of Meteorology
Station: Learmonth
Station Code: LMD
IUWDS Station Code:	81202
Sensor Orientation: HDZ
Data type identifier: K
Coordinates: -22.21925, 114.10322
Sampling Frequency: 5 Hz

Initial tests were run between 2022-11-17 and 2023-02-20. 

The new system is currently offline for modification and additional testing. 

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23 Jun 2023 (JY)

Updated IGRF and geomagnetic coordinates.

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02 Aug 2023 (JY)

Data flow started.

Data File Header
----------------
System:	MDASv1.0
Sensor:	Bartington Mag03
Data Acquisition System:	MDASv1.0
Software:	BECA_1.0
Source of Data:	Bureau of Meteorolgy
Station:	Learmonth
Station Code:	LSO
IUWDS Station Code:	81202
Coordinates:	Lat -22.21925, Long 114.10322
GPS Fix:	True
Sensor Orientation:	HDZ
Number of Channel:	3
Voltage Offset:	[0.000000, 0.000000, 0.000000]
Scaling Factor:	[7000.000000 nT/V, 7000.000000 nT/V, 7000.000000 nT/V]
Descriptors:	Date	Time	H_nT	D_nt	Z_nT	Temp_degC
Additional Information:
Temp is measured at the data acquisition system.
Sensor range +/- 70,000nT, 7000nT/Volt.
Scaling factor and voltage offset have already been applied.
Coordinates reference the GPS reciever of the acquisition unit 
not the sensor.

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01 May 2024 (JY)

The control unit for the Learmonth MDAS was upgraded on 30 Apr 2024 around 03:12 UT.  
There is a gap in the data as the GPS unit took overnight to achieve the 3D lock 
required for the PTP time service.  Data resumed at 2024-04-30 22:25:22.20 UT.