ExtraHeaders-FDSN-v1.0.schema
Extra headers in miniSEED 3 data format
- type
object- Schema
http://json-schema.org/draft-07/schema#- id
http://www.fdsn.org/schemas/ExtraHeaders-FDSN-v1.0.schema.json
definitions
Equipment
- type
object- Additional properties allowed
No
Model
Model of equipment
- type
string
Serial
Serial number of equipment
- type
string
Properties: FDSN
FDSN
Reserved extra headers defined by the FDSN
- type
object- Additional properties allowed
No
Properties: Calibration, Clock, DataQuality, Event, Flags, Logger, ProvenanceURI, Recenter, Sensor, Sequence, Time
Calibration
Headers related to calibrations
- type
object- Additional properties allowed
No
Properties: Sequence
Sequence
List of calibration sequences
- type
array
Every element of Sequence is:
List of calibrations
- type
object- Additional properties allowed
No
Properties: Amplitude, AmplitudeRange, BeginTime, Continued, Coupling, Duration, EndTime, InputChannel, InputUnits, Noise, ReferenceAmplitude, Rolloff, SinePeriod, StepAlternateSign, StepBetween, StepFirstPulsePositive, Steps, Trigger, Type
Amplitude
Amplitude of calibration signal. For pseudo-random calibrations, this should be the peak-to-peak amplitude of the steps. [same as SEED 2.4 Blockettes 300,310, field 8 and Blockettes 320,390, field 7]
- type
number
AmplitudeRange
Amplitude range of calibration, use values of PEAKTOPEAK, ZEROTOPEAK, RMS OR RANDOM. [same as SEED 2.4 Blockette 310, field 5, bits 4,5,6 and Blockette 320, field 5, bit 4]
- type
string
BeginTime
Calibration begin time. [similar to SEED 2.4 Blockettes 300,310,320,390, field 3]
- type
string- format
date-time
Continued
Calibration is continued from previous records. [same as SEED 2.4 Blockettes 300,310,320,390, field 5, bit 3]
- type
boolean
Coupling
Coupling of the calibration signal, such as RESISTIVE or CAPACITIVE. [same as SEED 2.4 Blockettes 300,310, field 12 and Blockette 320, field 11]
- type
string
Duration
Duration of calibration in seconds. For step calibrations this is the duration of the step. [same as SEED 2.4 Blockettes 300,310,320,390, field 6]
- type
number
EndTime
Calibration end time. [same as SEED 2.4 Blockette 395, field 3]
- type
string- format
date-time
InputChannel
Channel containing the calibration input. [same as SEED 2.4 Blockettes 300,310, field 9 and Blockettes 320,390, field 8]
- type
string
InputUnits
Units of calibration input, usually volts or amps. [same as SEED 2.4 Blockette 52, field 9]
- type
string
Noise
Noise characteristics for pseudo-random calibrations, such as WHITE or RED. [same as SEED 2.4 Blockette 320, field 13]
- type
string
ReferenceAmplitude
Reference amplitude. This is a user-defined value that indicates either the voltage or amperage of the calibration signal when the calibrator is set to 0dB. [same as SEED 2.4 Blockettes 300,310, field 11 and Blockette 320, field 10]
- type
number
Rolloff
Rolloff characteristics for any filters used on the calibrator, such as 3dB@10Hz. [same as SEED 2.4 Blockettes 300,310, field 13 and Blockette 320, field 12]
- type
string
SinePeriod
Period of sine calibrations in seconds. [same as SEED 2.4 Blockette 310, field 7]
- type
number
StepAlternateSign
Step calibration alternate sign. [same as SEED 2.4 Blockettes 300, field 5, bit 1]
- type
boolean
StepBetween
Interval between times a step calibration is on in seconds. [same as SEED 2.4 Blockette 300, field 7]
- type
number
StepFirstPulsePositive
Step calibration, first pulse is positive. [same as SEED 2.4 Blockette 300, field 5, bit 0]
- type
boolean
Steps
Number of step calibrations in sequence. [same as SEED 2.4 Blockette 300, field 4]
- type
number
Trigger
Calibration trigger, use AUTOMATIC or MANUAL. [same as SEED 2.4 Blockettes 300,310,320,390, field 5, bit 2]
- type
string
Type
Type of calibration: STEP, SINE, PSEUDORANDOM, GENERIC.
- type
string
Clock
Description of clock system
- Reference
Equipment#/
DataQuality
Data quality indicator, use D, R, Q or M. [same as SEED 2.4 FSDH, field 2]
- type
string
Event
Headers related to event detection and progression
- type
object- Additional properties allowed
No
Properties: Begin, Detection, End, InProgress
Begin
An event starts in this record. [same as SEED 2.4 FSDH, field 12, bit 2]
- type
boolean
Detection
List of event detections
- type
array
Every element of Detection is:
- type
object- Additional properties allowed
No
Properties: BackgroundEstimate, Detector, MEDLookback, MEDPickAlgorithm, MEDSNR, OnsetTime, SignalAmplitude, SignalPeriod, Type, Units, Wave
BackgroundEstimate
Event background estimate in counts. [same as SEED 2.4 Blockettews 200 and 201, field 5]
- type
number
Detector
Name of the event detector. [same as SEED 2.4 Blockette 200, field 9 and Blockette 201, field 12]
- type
string
MEDLookback
Murdock event detction lookback value: 0, 1 or 2. [same as SEED 2.4 Blockette 201, field 10]
- type
integer
MEDPickAlgorithm
Murdock event detection pick algorithm: 0 or 1. [same as SEED 2.4 Blockette 201, field 11]
- type
integer
MEDSNR
Murdock event detection signal-to-noise ratios. [same as SEED 2.4 Blockette 201, field 9]
- type
array
Every element of MEDSNR is:
- type
number
OnsetTime
Event signal onset time. [same as SEED 2.4 Blockettews 200 and 201, field 8]
- type
string- format
date-time
SignalAmplitude
Event amplitude of signal in counts. [same as SEED 2.4 Blockettews 200 and 201, field 3]
- type
number
SignalPeriod
Event period of signal in seconds. [same as SEED 2.4 Blockettews 200 and 201, field 4]
- type
number
Type
Type of event detection, e.g. MURDOCK
- type
string
Units
Units of amplitude band background estimate, use COUNTS for unprocessed signal. [similar to SEED 2.4 Blockettews 200, field 6, bit 1]
- type
string
Wave
Event detection wave, use values of DILATATION or COMPRESSION if determined. [same as SEED 2.4 Blockettews 200 and 201, field 6, bit 0]
- type
string
End
An in-progress event ends in this record, i.e. the detection algorithm de-triggers. [same as SEED 2.4 FSDH, field 12, bit 3]
- type
boolean
InProgress
An event is in progress. [same as SEED 2.4 FSDH, field 12, bit 6]
- type
boolean
Flags
- type
object- Additional properties allowed
No
Properties: AmplifierSaturation, DigitizerClipping, EndOfTimeSeries, FilterCharging, Glitches, LongRecordRead, MassPositionOffscale, MissingData, ShortRecordRead, Spikes, StartOfTimeSeries, StationVolumeParityError, TelemetrySyncError
AmplifierSaturation
Amplifier saturation detected. [same as SEED 2.4 FSDH, field 14, bit 0]
- type
boolean
DigitizerClipping
Digitizer clipping detected. [same as SEED 2.4 FSDH, field 14, bit 1]
- type
boolean
EndOfTimeSeries
DEPRECATED End of time series. [same as SEED 2.4 FDSH, field 13, bit 4]
- type
boolean
FilterCharging
A digital filter may be charging. [same as SEED 2.4 FDSH, field 14, bit 6]
- type
boolean
Glitches
Glitches detected. [same as SEED 2.4 FSDH, field 14, bit 3]
- type
boolean
LongRecordRead
DEPRECATED Long record read (possibly no problem). [same as SEED 2.4 FDSH, field 13, bit 1]
- type
boolean
MassPositionOffscale
Sensor mass position is offscale as defined by the vendor or operator.
- type
boolean
MissingData
DEPRECATED Missing data. [same as SEED 2.4 FDSH, field 14, bit 4]
- type
boolean
ShortRecordRead
DEPRECATED Short record read (record padded). [same as SEED 2.4 FDSH, field 13, bit 2]
- type
boolean
Spikes
Spikes detected. [same as SEED 2.4 FSDH, field 14, bit 2]
- type
boolean
StartOfTimeSeries
DEPRECATED Start of time series. [same as SEED 2.4 FDSH, field 13, bit 3]
- type
boolean
StationVolumeParityError
DEPRECATED Station volume parity error possibly present. [same as SEED 2.4 FDSH, field 13, bit 0]
- type
boolean
TelemetrySyncError
DEPRECATED Telemetry synchronization error. [same as SEED 2.4 FDSH, field 14, bit 5]
- type
boolean
Logger
Description of data logger
- Reference
Equipment#/
ProvenanceURI
An identifier for a provenance description
- type
string
Recenter
Headers related to sensor recentering (mass, gimble, etc.)
- type
object- Additional properties allowed
No
Properties: Sequence
Sequence
List of recentering sequences
- type
array
Every element of Sequence is:
List of recenterings
- type
object- Additional properties allowed
No
Properties: BeginTime, EndTime, Trigger, Type
BeginTime
Recenter begin time.
- type
string- format
date-time
EndTime
Estimate of recenter end time.
- type
string- format
date-time
Trigger
Calibration trigger, use AUTOMATIC or MANUAL.
- type
string
Type
Type of recenter: Mass, Gimbal, etc. If omitted a mass recenter may be assumed.
- type
string
Sensor
Description of sensor
- Reference
Equipment#/
Sequence
Data record sequence number. [same as SEED 2.4 FSDH, field 1]
- type
integer
Time
Headers related to data timing and recording system clock
- type
object- Additional properties allowed
No
Properties: Correction, Exception, LeapSecond, MaxEstimatedError, Quality
Correction
Time correction applied to record start time in seconds. [same as SEED 2.4 FSDH, field 16]
- type
number
Exception
List of timing exceptions
- type
array
Every element of Exception is:
- type
object- Additional properties allowed
No
Properties: ClockStatus, Count, ReceptionQuality, Time, Type, VCOCorrection
ClockStatus
Description of clock status, clock specific parameters such as the station for an Omega clock or satellite signal to noise ratios for GPS clocks. [same as SEED 2.4 Blockette 500, field 10]
- type
string
Count
Exception count, with meaning based on type of exception, such as 15 missing time marks. [same as SEED 2.4 Blockette 500, field 7]
- type
integer
ReceptionQuality
Reception quality as a percent of maximum clock accuracy based only on information from the clock. [same as SEED 2.4 Blockette 500, field 6]
- type
integer
Time
Time of timing exeption. [same as SEED 2.4 Blockette 500, field 4]
- type
string- format
date-time
Type
Description of clock exception, such as MISSING TIMEMARK. [same as SEED 2.4 Blockette 500, field 8]
- type
string
VCOCorrection
VCO correction, a percentage from 0 to 100% of VCO control value, where 0 is the slowest and 100 is the fastest. [same as SEED 204 Blockette 500, field 3]
- type
number
LeapSecond
If present, one or more leap seconds occuring during this record. The value specifies the number of leap seconds and direction. For example, use 1 to specify a single positive leap second and -1 to specify a single negative leap second. [incorporates SEED 2.4 FSDH, field 12, bits 4 and 5]
- type
integer
MaxEstimatedError
Maximum estimated timing error in seconds.
- type
number
Quality
Timing quality. A vendor specific value from 0 to 100% of maximum accuracy. [same as SEED 2.4 Blockette 1001, field 3]
- type
number