File describing the reference data!
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REF_1_LAN_THAI
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ENVISAT L2 data over Thailand. The columns in the file are
Col 1: Orbit No
Col 2: Latitude
Col 3: Longitude
Col 4: Time (Seconds since January 2000)
Col 5: Surface elevation in m relative to WGS 84 based on ICE1
Col 6: Surface elevation in m relative to WGS 84 based on ICE2

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REF_2_LAN_THAI
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SARAL/ALTIKA L2 data over Thailand

Col 1: Cycle No
Col 2: Orbit No
Col 3: Year
Col 4: Month
Col 5: Day
Col 6: DecYear, decimal years
Col 7: Latitude
Col 8: Longitude
Col 9: Surface elevation in m relative to Topex/Poseidon based on ICE1
Col 10: Surface elevation in m relative to Topex/Poseidon based on ICE2
Col 11 Geoid