ASTROSAT CZTI

Data Quality Report

Orbit 13413

Creation date: 2024-06-27T16:40:25.404104
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1A04_103T01_9000001988_13413cztM0_level2.evt modeM0/AS1A04_103T01_9000001988_13413cztM0_level2_quad_clean.evt
Size (bytes)825,189,120121,109,760
Size787.0 MB 115.5 MB
Events in quadrant A5,302,463745,201
Events in quadrant B7,704,277688,177
Events in quadrant C5,289,213746,238
Events in quadrant D5,933,931710,256

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0231993
B0302702
C0230992
D0249452

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02300
B02300
C02300
D02300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A112301040.926091%
B11230116510.373998%
C11230920.819234%
D112301050.934996%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 13161 11231 0 0 0.00% 0.00%
B 13161 11231 889 889 6.75% 7.92%
C 13161 11231 0 0 0.00% 0.00%
D 13161 11231 24 24 0.18% 0.21%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 15 69 50547 179.79 1354 1323 273.8
A 1 162 19232 65.41 1354 1323 273.8
A 2 250 15271 50.94 1354 1323 273.8
B 3 64 2634714 10940.83 1267 1236 240.7
B 0 230 46279 187.13 1267 1236 240.7
B 0 214 35616 142.83 1267 1236 240.7
C 3 233 125074 406.8 1322 1327 304.2
C 13 61 9325 26.29 1322 1327 304.2
C 14 220 9315 26.26 1322 1327 304.2
D 8 195 511984 1615.27 1312 1271 316.2
D 1 52 319602 1006.81 1312 1271 316.2
D 2 225 61225 189.62 1312 1271 316.2

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter