ASTROSAT CZTI

Data Quality Report

Orbit 37032

Creation date: 2024-06-27T21:34:32.797985
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/AS1T05_046T01_9000005266_37032cztM0_level2.evt modeM0/AS1T05_046T01_9000005266_37032cztM0_level2_quad_clean.evt
Size (bytes)409,815,36053,982,720
Size390.8 MB 51.5 MB
Events in quadrant A2,757,780320,919
Events in quadrant B2,873,544321,238
Events in quadrant C3,288,790308,983
Events in quadrant D3,120,474301,392

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0115167
B01207424
C01308028
D0130636

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01120
B01120
C01110
D01120

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0300
C0300
D0310

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5455150.274977%
B5450601.100917%
C54491192.183887%
D54551102.016499%

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 7041 5458 9 9 0.13% 0.16%
B 7041 5456 32 32 0.45% 0.59%
C 7041 5455 104 104 1.48% 1.91%
D 7041 5458 90 90 1.28% 1.65%

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 10 83 236439 1848.65 629 617 127.6
A 9 143 55271 428.44 629 617 127.6
A 13 6 19118 145.03 629 617 127.6
B 5 172 175261 1466.47 619 602 119.1
B 0 213 73079 608.53 619 602 119.1
B 5 184 60912 506.37 619 602 119.1
C 14 254 326501 2337.13 600 604 139.4
C 15 214 234199 1675.2 600 604 139.4
C 0 10 234163 1674.94 600 604 139.4
D 2 250 229380 1534.05 604 584 149.1
D 2 153 202271 1352.29 604 584 149.1
D 12 235 136019 908.08 604 584 149.1

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