SEA LEVEL STATION MONITORING FACILITY
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Station metadata
Code lank
Country Malaysia
Location Langkawi
Status Operational
Status description Changed to iridium 8/28/2024
Added to the system 2007-11-27 12:55:00
Local Contact Department of Surveying and Mapping ( Malaysia )
Other Contact University of Hawaii Sea Level Center ( USA )
Long-term MSL data
Latitude 6.416
Longitude 99.7667
Connection GTS message
GTS message type SZXX01
GTS station code 301434061600080
Transmit interval (min) 6
Transmit lag UTC (sec) 0
Ave. transmit delay (min) 5
Messages received (24h) 695
Messages expected (24h) 240
Sensor 1
Type of sensorprs (pressure)
Sampling rate (min)1
    GTS format
Units of measurem
First value4
Samples5
Reversed orderyes
    Performance statistics
Last data measured at2024-11-23 14:20:00
Last data received at2024-11-23 14:24:01
Measurements received in 24h1185
Measurements expected1440
Performance ratio82%
Sensor 2
Type of sensorrad (radar)
Sampling rate (min)1
    GTS format
Units of measurem
First value4
Samples5
Reversed orderyes
    Performance statistics
Last data measured at2024-11-23 14:20:00
Last data received at2024-11-23 14:24:01
Measurements received in 24h1185
Measurements expected1440
Performance ratio82%
Sensor 3
Type of sensorra2 (2nd radar)
Sampling rate (min)1
    GTS format
Units of measurem
First value4
Samples5
Reversed orderyes
    Performance statistics
Last data measured at2024-11-23 14:20:00
Last data received at2024-11-23 14:24:01
Measurements received in 24h1185
Measurements expected1440
Performance ratio82%
Sensor 4
Type of sensorras (radar in stilling well)
Sampling rate (min)1
    GTS format
Units of measurem
First value4
Samples5
Reversed orderyes
    Performance statistics
Last data measured at2024-11-23 14:19:00
Last data received at2024-11-23 14:24:01
Measurements received in 24h1182
Measurements expected1440
Performance ratio82%
Sensor 5
Type of sensorbat (battery)
Sampling rate (min)5
    GTS format
Units of measureV
First value4
Samples1
Reversed orderyes
    Performance statistics
Last data measured at2024-11-23 14:16:00
Last data received at2024-11-23 14:24:01
Measurements received in 24h237
Measurements expected288
Performance ratio82%
Sensor 6
Type of sensorsw1 (1st switch)
Sampling rate (min)60
    GTS format
Units of measuremin
First value4
Samples1
Reversed orderyes
    Performance statistics
Last data measured at2023-05-22 06:08:00
Last data received at2023-05-22 06:13:07
Measurements received in 24h0
Measurements expected24
Performance ratio0%
Period SignalsData

12h
day
7 days
30 days
 prs (pressure)
rad (radar)
ra2 (2nd radar)
ras (radar in stilling well)
Remove outliers
Remove spikes 		Relative levels = signal - median over selected period
Absolute levels = as received
Offset signals = relative levels + offset
Show battery voltage
Show switch data
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