4. Project IDA:  [ ID ]

DATES OF OPERATION:     Dec 1975 to Dec 1995.

SEISMOMETER TYPE AND DATA ACQUISITION SYSTEM:
Project IDA modified La Coste gravimeter with electrostatic sensing and 
feedback, recorded on IDA MK1 datalogger.

DIGITAL FORMAT:
Files correspond to original data tapes, with EBCDIC headers and 16 bit
integer words.

CHANNEL DATA:
Caution: These sensitivities correspond only to the most recent calibration.
A complete set of instrument responses is available in the programs IDANUM and
IDARES, available on anonymous ftp to cahuilla.ucsd.edu.
 
Channel         Sampling Rate           Sensitivities
UHZ             0.1 sps continuous      4.550e+09 C/(m/s2) @ 0.01 Hz