orid

Base Entity | assocaro
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

arid

Base Entity | assocaro
Attribute Name | arid
Logical Rolename | arid
ColumnName | arid
RoleName | arid
Definition | Arrival identifier. Each arrival is assigned a unique positive integer identifying it. This number is used in the AssocArO relation along with the origin identifier to link Arrival and Origin
Note | Range: arid > 0

commid

Base Entity | assocaro
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 | assocaro
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 | assocaro
Attribute Name | subsource
Logical Rolename | subsource
ColumnName | subsource
RoleName | subsource
Definition | A second identifier to specify a unique source within the domain specified by auth
Note | Range: Any free-format string up to 8 characters

iphase

Base Entity | assocaro
Attribute Name | iphase
Logical Rolename | iphase
ColumnName | iphase
RoleName | iphase
Definition | Reported phase. This eight-character field holds the name initially given to a seismic phase. Standard seismological labels for the types of signals (or phases) are used (e.g., P, PKP, PcP, pP). Both upper and lower case letters are available and should be used when appropriate, for example, pP or PcP
Note | Range: Any free-format string up to 8 characters

importance

Base Entity | assocaro
Attribute Name | importance
Logical Rolename | importance
ColumnName | importance
RoleName | importance
Definition | This attribute denotes the importance of a phase/amplitude reading towards an origin/magnitude. 0.0 means no importance, 1.0 implies extremely important
Note | Range: 0.0 < importance <= 1.0

delta

Base Entity | assocaro
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 | assocaro
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

in_wgt

Base Entity | assocaro
Attribute Name | in_wgt
Logical Rolename | in_wgt
ColumnName | in_wgt
RoleName | in_wgt
Definition | Input weight
Note | Range: 0.0 < in_wgt <= 1.0 0.0 = no weight (not used)

wgt

Base Entity | assocaro
Attribute Name | wgt
Logical Rolename | wgt
ColumnName | wgt
RoleName | wgt
Definition | Location weight. This attribute gives the final weight assigned to the allied arrival by the location program. It is used primarily for location programs that adaptively weight data by their residuals
Note | Range: 0.0 <= wgt < 1.0

timeres

Base Entity | assocaro
Attribute Name | timeres
Logical Rolename | timeres
ColumnName | timeres
RoleName | timeres
Definition | Time residual. This attribute is a travel time residual, measured in seconds. The residual is found by taking the observed arrival time (saved in the Arrival relation) of a seismic phase and substracting the expected arrival time. The expected arrival time is calculated by a formula based on earth velocity model, an event location and origin time, the distance to the station, and the particular seismic phase
Note | Range: timeres >= 0.0 Units: Seconds

azres

Base Entity | assocaro
Attribute Name | azres
Logical Rolename | azres
ColumnName | azres
RoleName | azres
Definition | Azimuth residual. This is the difference between the measured station-to-event azimuth for an arrival and the true azimuth. The “true” azimuth is the bearing to the inferred event origin
Note | Range: -180.0 <= azres <= 180.0 Units: Degrees

emares

Base Entity | assocaro
Attribute Name | emares
Logical Rolename | emares
ColumnName | emares
RoleName | emares
Definition | Emergence angle residual. This attribute is the difference between an observed emergence angle and the theorical prediction for the same phase, assuming an event location as specified by the accompanying orid
Note | Range: -90.0 <= emares <= 90.0 Units: Degrees

slores

Base Entity | assocaro
Attribute Name | slores
Logical Rolename | slores
ColumnName | slores
RoleName | slores
Definition | Slowness residual. This attribute gives the difference between an observed slowness (saved in the Arrival relation) and a theorical prediction. The prediction is calculated for the related phase and event origin described in the record
Note | Range: slores >= 0.0 Units: Seconds/kilometer

vmodelid

Base Entity | assocaro
Attribute Name | vmodelid
Logical Rolename | vmodelid
ColumnName | vmodelid
RoleName | vmodelid
Definition | Velocity model identification
Note | Range: vmodelid > 0

scorr

Base Entity | assocaro
Attribute Name | scorr
Logical Rolename | scorr
ColumnName | scorr
RoleName | scorr
Definition | Station correction
Note | Range: Any valid float Units: Seconds

sdelay

Base Entity | assocaro
Attribute Name | sdelay
Logical Rolename | sdelay
ColumnName | sdelay
RoleName | sdelay
Definition | Station delay
Note | Range: Any valid float Units: Seconds

rflag

Base Entity | assocaro
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

ccset

Base Entity | assocaro
Attribute Name | ccset
Logical Rolename | ccset
ColumnName | ccset
RoleName | ccset
Definition | This field describes whether the clock correction has been added or applied to the arrivals in computing a hypocenter solution
Note | Range: ccset in {0 | 1} 0 = no 1 = yes

lddate

Base Entity | assocaro
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