Shot Sequence and time in headers do not match up with the shot/time entries in the ts.n files

Dates/times are zero for lines 01 (all), 03, 19, 19a, 23, 24, 29

LDEO has no additional information that would allow matching navigation with shots

LDEO has no information about source-receiver offset

There are no msecs in the headers. It is possible that the time is from the original SEGD general header which may differ from the true time

For some lines shot number is reset to 1 in the middle of the line

Lines 01, 03, 19, 19a, 21-24 were flagged as IBM Floating Point

Lines 20b, 25-49 were flagged as IEEE Floating Point

Receiver Type: Hydrophone_Streamer

Source Type: SeismicSource_Gun_Air

Acquisition System Name: Reftek recorders<br>Kinematrics K2 recorders

Acquisition System Type: digital

Seismic Nav System: differential GPS using data received simultaneously onboard the R/V <i>Ewing</i> and at a base station at the National Taiwan University

Survey Datum: WGS84

Source to Near Channel (m): null

Antenna to Source (m): null

Number of Channels Recorded: 160

Channel Length (m): 25

Cable Receiver Depth (m): null

Source Volume (cubicInches): 8425

Source Pressure (bars): null

Source Number: 20

Source Depth (m): null

Shot Control: time

Shot Interval (s or m): 20

Compass Birds: no

Tail Buoy Positioning: no