orid 
Base Entity  assoccoo 
Attribute Name  orid 
Logical Rolename  orid 
ColumnName  orid 
RoleName  orid 
Definition  Origin identification. Each origin is assigned a unique positive integer which identifies it in the database. The orid is used to identify one of the many hypotheses of the actual location of the event 
Note  Range: orid > 0 

coid 
Base Entity  assoccoo 
Attribute Name  coid 
Logical Rolename  coid 
ColumnName  coid 
RoleName  coid 
Definition  Coda identification. Each coda is assigned a unique positive integer which identifies it in the database 
Note  Range: coid > 0 

commid 
Base Entity  assoccoo 
Attribute Name  commid 
Logical Rolename  commid 
ColumnName  commid 
RoleName  commid 
Definition  Comment identification. This is a key used to point to free-form comments entered in the Remark relation. These comments store additional information about a tuple in another relation. Within the Remark relation, there may be many tuples with the same commid and different lineno, but the same commid will appear in only one other tuple among the rest of the relations in the database 
Note  Range: commid > 0 

auth 
Base Entity  assoccoo 
Attribute Name  auth 
Logical Rolename  auth 
ColumnName  auth 
RoleName  auth 
Definition  The auth field specifies the source of the information. This may be a network identifier (FDSN or otherwise), or any other string indicating the source of the information in the record 
Note  Range: Any free-format string up to 15 characters 

subsource 
Base Entity  assoccoo 
Attribute Name  subsource 
Logical Rolename  subsource 
ColumnName  subsource 
RoleName  subsource 
Definition  A second identifier to specify the system or process that derived the data. e.g., the origin's AUTH is CI, but the subsource (the solution) was computed by JIGGLE 
Note  Range: Any free-format string up to 8 characters 

delta 
Base Entity  assoccoo 
Attribute Name  delta 
Logical Rolename  delta 
ColumnName  delta 
RoleName  delta 
Definition  Source-receiver distance. This attribute is the arc length, over the earth’s surface, of the path the seismic phase follows from source to receiver. The location of the origin is specified in the origin record referenced by the attribute orid. The attribute arid points to the record in the Arrival relation that identifies the receiver. The value of the attribute can exceed 180 degrees, it can even exceed 360 degrees, the geographic distance between source and receiver is delta mod(180) 
Note  Range: delta >= 0.0 Units: Degrees 

seaz 
Base Entity  assoccoo 
Attribute Name  seaz 
Logical Rolename  seaz 
ColumnName  seaz 
RoleName  seaz 
Definition  Station to event azimuth. This attribute is calculated from the station and event locations. It is measured clockwise from North 
Note  Range: 0.0 <= seaz <= 360.0 Units: Degrees 

rflag 
Base Entity  assoccoo 
Attribute Name  rflag 
Logical Rolename  rflag 
ColumnName  rflag 
RoleName  rflag 
Definition  This flag describes whether an observation was generated automatically, by a human, or has been finalized 
Note  Range: rflag = {A | H | F} A = automatic H = reviewed by human F = finalized 

lddate 
Base Entity  assoccoo 
Attribute Name  lddate 
Logical Rolename  lddate 
ColumnName  lddate 
RoleName  lddate 
Definition  Load date. Date and time that the record was created or last modified, in Oracle date datatype 
Note  Range: Any valid date between January 01, 4712 BC and January 01, 4712 AD Units: YYYY/MM/DD HH24:MI:SS