| Attribute/Logical Rolename |
Domain |
Datatype |
NULL |
Definition |
net |
|
VARCHAR(8) |
NO |
Unique network identifier. This character string is the name of a seismic network |
| sta |
|
VARCHAR(6) |
NO |
Station code. This is the common code-name of a seismic observatory. Generally only three or four characters are used |
| seedchan |
|
VARCHAR(3) |
NO |
SEED channel name. The first character denotes the band code, the second for the instrument code and the third represents the component code |
| location |
|
VARCHAR(2) |
NO |
Describes the individual sites on an array station, operated by the same network operator |
| ondate |
|
DATE |
NO |
This attribute denotes the start date |
| channel |
|
VARCHAR(8) |
YES |
Channel name |
| channelsrc |
|
VARCHAR(8) |
YES |
Domain for channel. This specifies what naming convention is used for the channel name (i.e. SEED, USGS, etc.) |
| natural_frequency |
|
FLOAT |
YES |
Natural frequency |
| damping_constant |
|
FLOAT |
YES |
This attribute denotes the damping constant of the system |
| gain |
|
FLOAT |
YES |
This attribute denotes the gain of the system. The units of the gain are given by the gain_units attribute |
| gain_units |
|
VARCHAR(20) |
NO |
This attribute denotes the units of the gain of the system, as given by the gain attribute |
| low_freq_corner |
|
FLOAT |
YES |
Low frequency corner |
| high_freq_corner |
|
FLOAT |
YES |
High frequency corner |
| offdate |
|
DATE |
YES |
This attribute denotes the end date |
| dlogsens |
|
NUMERIC(8, 0) |
YES |
Digitizer sensitivity |
| lddate |
|
DATE |
YES |
Load date. Date and time that the record was created or last modified, in Oracle date datatype |