DORADE Housekeeping Evaluation, VORTEX-2 Radar Data

TTUKa_log.0906052206.txt

Highlighted items require attention.
General Comments:
I have no way of evaluating the accuracy of the information in the radar descriptor block. However, the noise power seems in error. Also, the receiver gain is often not equal to the system gain.

Contents of the volume descriptor len: 72
Param name Current value Recommended value
volume_des[4] VOLD
volume_des_length 72
format_version 1
volume_num 37
maximum_bytes 65500
proj_name[20] TTUKa1 VORTEX2
year 2009
month 6
day 5
data_set_hour 22
data_set_minute 6
data_set_second 3
flight_num[8]
gen_facility[8] NCAR/ATD Texas Tech ?
gen_year 2009
gen_month 8
gen_day 19
number_sensor_des 1

Contents of the radar descriptor len: 300
Param name Current value Recommended value
radar_des[4] RADD
radar_des_length 144
radar_name[8] TTUKa-1
radar_const 45.500000
peak_power 49.000000
noise_power 47.000000 Noise power is generally on the order of -100 dBm.
receiver_gain 48.000000
antenna_gain 50.000000
system_gain 48.000000
horz_beam_width 0.484375
vert_beam_width 0.484375
radar_type 0
scan_mode 1
req_rotat_vel 24.000000
scan_mode_pram0 -32768.000000
scan_mode_pram1 -32768.000000
num_parameter_des 5
total_num_des 7
data_compress 1
data_reduction 0
data_red_parm0 -32768.000000
data_red_parm1 -32768.000000
radar_longitude -97.438332
radar_latitude 35.181107
radar_altitude 0.102000 Not correct, based on lat/lon (alt is in km)
eff_unamb_vel 16.153666
eff_unamb_range 19.936201
num_freq_trans 1
num_ipps_trans 1
freq1 34.884945
freq2 0.000000
freq3 0.000000
freq4 0.000000
freq5 0.000000
interpulse_per1 0.000133 should be in ms; try 0.133
interpulse_per2 0.000000
interpulse_per3 0.000000
interpulse_per4 0.000000
interpulse_per5 0.000000

Contents of the parameter descriptor len: 216
Param name Current value Recommended value
parameter_des[4] PARM
parameter_des_length 104
parameter_name[8] ZT
param_description[40]
param_units[8]
interpulse_time 1
xmitted_freq 1
recvr_bandwidth 0.005996 Does not seem correct.
pulse_width 5995 units are meters; value does not seem correct
polarization 0
num_samples 64
binary_format 2
threshold_field NONE
threshold_value 0.000000
parameter_scale 100.000000
parameter_bias 0.000000
bad_data -32768

Contents of the parameter descriptor len: 216
Param name Current value Recommended value
parameter_des[4] PARM
parameter_des_length 104
parameter_name[8] DZ
param_description[40] Require a long description.
param_units[8] Units are required.
interpulse_time 1
xmitted_freq 1
recvr_bandwidth 0.005996 Does not seem correct.
pulse_width 5995 units are meters
polarization 0
num_samples 64
binary_format 2
threshold_field NONE
threshold_value 0.000000
parameter_scale 100.000000
parameter_bias 0.000000
bad_data -32768

Contents of the parameter descriptor len: 216
Param name Current value Recommended value
parameter_des[4] PARM
parameter_des_length 104
parameter_name[8] VR
param_description[40] Require a long description.
param_units[8] Units are required.
interpulse_time 1
xmitted_freq 1
recvr_bandwidth 0.005996 Does not seem correct.
pulse_width 5995 units are meters
polarization 0
num_samples 64
binary_format 2
threshold_field NONE
threshold_value 0.000000
parameter_scale 100.000000
parameter_bias 0.000000
bad_data -32768

Contents of the parameter descriptor len: 216
Param name Current value Recommended value
parameter_des[4] PARM
parameter_des_length 104
parameter_name[8] SW
param_description[40] Require a long description.
param_units[8] Units are required.
interpulse_time 1
xmitted_freq 1
recvr_bandwidth 0.005996 Does not seem correct.
pulse_width 5995 units are meters
polarization 0
num_samples 64
binary_format 2
threshold_field NONE
threshold_value 0.000000
parameter_scale 100.000000
parameter_bias 0.000000
bad_data -32768

Contents of the parameter descriptor len: 216
Param name Current value Recommended value
parameter_des[4] PARM
parameter_des_length 104
parameter_name[8] VR
param_description[40] Require a long description.
param_units[8] Units are required.
interpulse_time 1
xmitted_freq 1
recvr_bandwidth 0.005996 Does not seem correct.
pulse_width 5995 units are meters
polarization 0
num_samples 64
binary_format 2
threshold_field NONE
threshold_value 0.000000
parameter_scale 100.000000
parameter_bias 0.000000
bad_data -32768

Contents of the correction descriptor len: 72
Param name Current value Recommended value
correction_des CFAC
correction_des_length 72
azimuth_corr 0.000000
elevation_corr 0.000000
range_delay_corr 0.000000
longitude_corr 0.000000
latitude_corr 0.000000
pressure_alt_corr 0.000000
radar_alt_corr 0.000000
ew_gndspd_corr 0.000000
ns_gndspd_corr 0.000000
vert_vel_corr 0.000000
heading_corr 0.000000
roll_corr 0.000000
pitch_corr 0.000000
drift_corr 0.000000
rot_angle_corr 0.000000
tilt_corr 0.000000

Contents of the cell vector descriptor len: 6012
Param name Current value Recommended value
cell_spacing_des CELV
cell_des_len 6012
number_cells 591
dist_cells[0] 992.000000
dist_cells[1] 1024.000000
dist_cells[590] 19872.000000

Contents of the sweep descriptor len: 40
Param name Current value Recommended value
sweep_des[4] SWIB
sweep_des_length 40
radar_name[8] TTUKa-1
sweep_num 36
num_rays 257
start_angle 90.093750
stop_angle 180.140625
fixed_angle 1.000000
filter_flag 0

Contents of the ray descriptor len: 44
Param name Current value Recommended value
ray_info[4] RYIB
ray_info_length 44
sweep_num 36
julian_day 156
hour 22
minute 6
second 3
millisecond 0
azimuth 91.500000
elevation 0.984375
peak_power 49.000000
true_scan_rate 24.000000
ray_status 0

Contents of the platform descriptor len: 80
Param name Current value Recommended value
platform_info[4] ASIB
platform_info_lengtth 80
longitude -97.438332
latitude 35.181107
altitude_msl 0.102000
altitude_agl 0.102000
ew_velocity 0.000000
ns_velocity 0.000000
vert_velocity 0.000000
heading 0.000000
roll 0.000000
pitch 0.000000
drift_angle 0.000000
rotation_angle 91.500000
tilt 0.984375
ew_horiz_wind 0.000000
ns_horiz_wind 0.000000
vert_wind 0.000000
heading_change -32768.000000
pitch_change -32768.000000

Contents of the super sweepinfo descriptor len: 196
Param name Current value Recommended value
name_struct SSWB
sizeof_struct 196
last_used 1250714310 08/19/2009 20:38:30.000
start_time 1244239563 06/05/2009 22:06:03.000
stop_time 1244239559 06/05/2009 22:05:59.000
sizeof_file 1432348
compression_flag 0
volume_time_stamp 1244239563
num_params 5
radar_name
d_start_time 0.000 01/01/1970 00:00:00.000
d_stop_time 0.000 01/01/1970 00:00:00.000
version_num 0
status 0

Contents of the rotation angle table len: 28
Param name Current value Recommended value
name_struct[4] RKTB
sizeof_struct 7712
angle2ndx 1.333
ndx_que_size 480
first_key_offset 1952
angle_table_offset 32