SEA LEVEL STATION MONITORING FACILITY
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Station metadata
Code kapi
Country Micronesia
Location Kapingamarangi_FM
Status Operational
Status description UPDATED TO IRIDIUM 3/20/2026
Added to the system 2008-06-19 10:52:00
Local Contact Yap Weather Service Office ( Federated States of Micronesia )
Other Contact University of Hawaii Sea Level Center ( USA )
GLOSS core ID 117   [goto handbook]
Long-term MSL data
Latitude 1.0779583
Longitude 154.8066861
Connection GTS message
GTS message type SZXX01
GTS station code 300434064787540
Transmit interval (min) 5
Transmit lag UTC (sec) 0
Ave. transmit delay (min) 298
Messages received (24h) 424
Messages expected (24h) 288
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 at2026-03-22 06:15:00
Last data received at2026-03-22 06:20:28
Measurements received in 24h1078
Measurements expected1440
Performance ratio75%
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 at2026-03-22 06:15:00
Last data received at2026-03-22 06:20:28
Measurements received in 24h1078
Measurements expected1440
Performance ratio75%
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 at2026-03-22 06:15:00
Last data received at2026-03-22 06:20:28
Measurements received in 24h1078
Measurements expected1440
Performance ratio75%
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 at2026-03-22 06:15:00
Last data received at2026-03-22 06:20:28
Measurements received in 24h1073
Measurements expected1440
Performance ratio75%
Sensor 5
Type of sensorenc (float sensor with encoder)
Sampling rate (min)1
    GTS format
Units of measurem
First value4
Samples5
Reversed orderyes
    Performance statistics
Last data measured at2026-03-22 06:14:00
Last data received at2026-03-22 06:20:28
Measurements received in 24h1077
Measurements expected1440
Performance ratio75%
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 at2026-03-22 06:00:00
Last data received at2026-03-22 06:11:23
Measurements received in 24h19
Measurements expected24
Performance ratio79%
Sensor 7
Type of sensorsw2 (2nd switch)
Sampling rate (min)60
    GTS format
Units of measuremin
First value4
Samples1
Reversed orderyes
    Performance statistics
Last data measured at2026-03-22 00:30:00
Last data received at2026-03-22 05:40:28
Measurements received in 24h20
Measurements expected24
Performance ratio83%
Sensor 8
Type of sensorbat (battery)
Sampling rate (min)5
    GTS format
Units of measureV
First value54
Samples1
Reversed orderyes
    Performance statistics
Last data measured at2026-03-19 05:09:00
Last data received at2026-03-19 05:12:05
Measurements received in 24h0
Measurements expected288
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 switch data
Show battery voltage
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