ASTROSAT CZTI

Data Quality Report

Orbit 13622

Creation date: 2024-06-27T16:43:35.008309
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/AS1G08_038T01_9000002018_13622cztM0_level2.evt modeM0/AS1G08_038T01_9000002018_13622cztM0_level2_quad_clean.evt
Size (bytes)207,014,40027,737,280
Size197.4 MB 26.5 MB
Events in quadrant A1,228,852159,108
Events in quadrant B1,473,606165,003
Events in quadrant C1,253,798178,805
Events in quadrant D2,151,655167,177

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050452
B057931
C050891
D080451

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0480
B0480
C0480
D0480

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A23521124.761905%
B23521456.164966%
C2352923.911565%
D23522038.630952%

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 3353 2354 0 0 0.00% 0.00%
B 3353 2354 10 10 0.30% 0.42%
C 3353 2354 1 1 0.03% 0.04%
D 3353 2354 95 95 2.83% 4.04%

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 1 162 11523 171.19 314 306 65.5
A 1 178 3963 55.81 314 306 65.5
A 1 161 3607 50.38 314 306 65.5
B 0 219 206007 3316.02 310 301 62.0
B 3 64 19360 307.23 310 301 62.0
B 0 214 14223 224.43 310 301 62.0
C 3 233 49779 690.07 306 308 71.7
C 14 234 6347 84.24 306 308 71.7
C 12 4 3742 47.9 306 308 71.7
D 5 222 628502 8559.9 303 293 73.4
D 13 122 198962 2707.04 303 293 73.4
D 8 195 134889 1833.99 303 293 73.4

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