Datums for 1770000, Pago Pago, American Samoa


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 1770000, Pago Pago, American Samoa
Status: Superseded (Apr 17 2003) (Accepted Sep 23 1998)
Units: Feet
Control Station:
T.M.: 0
Epoch: 1960-1978
Datum: MLLW
DatumValueDescription
MHHW2.75Mean Higher-High Water
MHW2.61Mean High Water
MTL1.34Mean Tide Level
MSL1.34Mean Sea Level
DTL1.37Mean Diurnal Tide Level
MLW0.06Mean Low Water
MLLW0.00Mean Lower-Low Water
ASVD02
STND-2.49Station Datum
GT2.75Great Diurnal Range
MN2.55Mean Range of Tide
DHQ0.14Mean Diurnal High Water Inequality
DLQ0.06Mean Diurnal Low Water Inequality
HWI6.32Greenwich High Water Interval (in hours)
LWI12.42Greenwich Low Water Interval (in hours)
Max Tide4.87Highest Observed Tide
Max Tide Date & Time02/19/2019 05:42Highest Observed Tide Date & Time
Min Tide-0.28Lowest Observed Tide
Min Tide Date & Time05/06/2016 11:18Lowest Observed Tide Date & Time
HAT3.56Highest Astronomical Tide
HAT Date & Time11/26/2034 06:00HAT Date and Time
LAT-0.71Lowest Astronomical Tide
LAT Date & Time03/02/2037 12:24LAT Date and Time
Tidal Datum Analysis Periods
01/01/1960 - 05/31/1976
07/01/1976 - 07/31/1976
09/01/1976 - 12/31/1977




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