newsensor [ parameter=value ]
Parameters are: satellite, sensor, channels, gamma, omega, psi, phi, degrees/sec, samps/sec, lines/sec, samps/line.
newsensor creates a new sensor file. Sensor files are in the form of a TeraScan dataset (see datasets(7)). It contains the necessary parameters to define the sensor name and satellite, and the geometrical orientation and scanning parameters. Every sensor must have a corresponding sensor file, i.e. there must be an avhrr sensor file for each of the NOAA spacecraft. The sensor files are created and located under the directory $SATDATA/satellite/sensor, e.g. $SATDATA/noaa-11/avhrr.
In most cases of the launch of a new satellite, old sensor files can be copied into the new satellite directories. However, the avhrr sensor files contain satellite/sensor specific calibration information and cannot be copied. Also, OLS sensors have one of two orientations on the spacecraft, i.e. f-10 and f-11 scan in the opposite direction as f-8 and f-9.
Description Valid responses are []. The default is yes.
The following shows an example of the contents of an OLS sensor file after creation by newsensor.
temp_63_% contents ols printout : char( 3) ? [no] Contents of File: ols Page 1 Dimension Size Coord Scale Offset dim_1 0 ? 1 0 Attribute Type Units Value channels long 2 omega double degrees 0 gamma double degrees 0 psi double degrees 45 phi double degrees -57.85 57.85 degrees/sec double degrees/sec 0 samps/sec double 102400 lines/sec double 11.88 samps/line double 7410
The following shows the contents of the noaa-12 sensor file after creation by newsensor and after calibration information has been added by newavcal3.
temp[8]% contents avhrr Contents of File: avhrr Page 1 Dimension Size Coord Scale Offset dim_1 0 ? 1 0 dim_2 3 ? 1 0 dim_3 60 ? 1 0 dim_4 150 ? 1 0 Attribute Type Units Value channels long 5 omega double degrees 0 gamma double degrees 0 psi double degrees 45 phi double degrees 55.3 -55.3 degrees/sec double degrees/sec 2160 samps/sec double 40000 lines/sec double 6 samps/line double 2048 cal_slope float 0.104223 0.10144 cal_intcp float -4.44908 -3.99256 cal_basenu float 2439.02 847.458 787.401 cal_delnu float 9.41466 2.80419 2.09809 cal_numnu long 60 60 60 prt_coefs float 276.597 276.597 276.597 276.597 0.051275 0.051275 0.051275 0.051275 1.363e-06 1.363e-06 1.363e-06 1.363e-06 0 0 0 0 0 0 0 0 prt_weights float 0.25 0.25 0.25 0.25 space_rad float 0 0 0 nonlin_err float 0.0006852 -0.06466 0.1011 0.0002064 -0.01782 -0.4325 Variable Type Units cal_response float temp->rad float Variable Dimension Size cal_response dim_2 3 cal_response dim_3 60 temp->rad dim_2 3 temp->rad dim_4 150 Variable BadValue Minimum Maximum Scale Offset cal_response -3.4028e+38 -3.4028e+38 3.4028e+38 1 0 temp->rad -3.4028e+38 -3.4028e+38 3.4028e+38 1 0
$SATDATA/satellite/sensor
avcalnl, orbdata, newoes, fixoes, etx, datasets, ols, avhrr.
This documentation is meant for internal SeaSpace use only. After creating a sensor file for AVHRR, the calibration information must be added by newavcal3.
Last Update: $Date: 2002/02/09 02:46:08 $