USAFR C-130 'J' data files
The United States Air Force Reserve 53rd WRS records flight
level parameters at one second intervals during reconnaissance
missions into tropical disturbances. Each month an Air Force
Quality Control officer will review all of the data collected
during the previous month, and produce reduced ten second files
for each flight. However, sometimes this data is retained at
the one second interval.
These files are in ASCII. They consist of several header lines
identifying the mission ID, start time and date for the data,
software and file version numbers, and tail number of the aircraft
in use. This is followed by a text line conatining headers identifying
the parameter recorded in each column. Below is listing of those
headers along with a full parameter name and the units that the
data was recorded in.
USAF data headers
| Header
| Description
| Units
|
| GMT Time
| Time of Day (UTC)
| Hours:Minutes:Seconds
|
| AOA
| Angle of Attack
| degrees
|
| BSP
| Baroset Pressure
| millibars
|
| CAS
| Calibrated Air Speed
| knots
|
| CC
| Course Correction
| degrees
|
| CSP
| Corrected Static Pressure
| millibars
|
| DPR
| Dynamic Pressure
| millibars
|
| DVAL
| Deviation Value
| meters
|
| GA
| Geopotential Altitude
| meters
|
| GPSA
| GPS Altitude
| meters
|
| GS
| Ground Speed
| knots
|
| HSS
| Height of Standard Surface
| meters
|
| LAT
| Latitude
| degrees
|
| LON
| Longitude
| degrees
|
| PA
| Pressure Altitude
| meters
|
| PITCH
| Pitch angle
| degrees
|
| RA
| Radar Altitude
| meters
|
| ROLL
| Roll angle
| degrees
|
| RR
| Rain Rate (SFMR)
| mm/hr
|
| SLP
| Sea Level Pressure
| millibars
|
| SS
| Side Slip
| degrees
|
| SWS
| Surface Wind Speed (SFMR)
| kts
|
| TA
| Static Air Temperature
| °C
|
| TAS
| True Air Speed
| knots
|
| TDA
| Dew Point Temperature - Analog
| °C
|
| TDD
| Dew Point Temperature - Digital
| °C
|
| THD
| True Heading
| degrees
|
| TRK
| Track
| degrees
|
| TT
| Total Temperature
| °C
|
| V V
| Vertical Velocity
| knots
|
| WD
| Wind Direction
| degrees
|
| WS
| Wind Speed
| knots
|
| Valid Flags
| Parameter validity flags
| binary
|
| Source Tags
| Data Source Tags
| hexidecimal
|
| SATCOM
| Satellite Communications status
| binary
|
| ARC210
| Motorola ARC-210 Radio status
| binary
|
| AD
| Analog/Digital Card status
| binary
|
| DDPH
| Digital Dew Point Hygrometer status
| binary
|
| 1553
| Main aircraft data bus
| digital
|
| SFMR
| Stepped Frequency Microwave Radiometer output
| hexidecimal
|
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