Table T2. Mapping between sensor channels and stream identification in Guralp Compressed Format.

Sensor channels
Stream ID
Upper seismometer CMG1T T1036:
Vertical (20 Hz) d415z4
Vertical (100 Hz) d415z2
Horizontal N-S (20 Hz) d415n4
Horizontal N-S (100 Hz) d415n2
Horizontal E-W (20 Hz) d415e4
Horizontal E-W (100 Hz) d415e2
Vertical mass position d415m8
Horizontal N-S mass position d415m9
Horizontal E-W mass position d415ma
Temperature d415me
Lower seismometer CMG1T T1037:
Vertical (20 Hz) d416z4
Vertical (100 Hz) d416z2
Horizontal N-S (20 Hz) d416n4
Horizontal N-S (100 Hz) d416n2
Horizontal E-W (20 Hz) d416e4
Horizontal E-W (100 Hz) d416e2
Vertical mass position d416m8
Horizontal N-S mass position d416m9
Horizontal E-W mass position d416ma
Temperature d416me