ASTROSAT CZTI

Data Quality Report

Orbit 41993

Creation date: 2024-06-27T22:35:28.363597
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_132T01_9000005730_41993cztM0_level2.fits modeM0/AS1T05_132T01_9000005730_41993cztM0_level2_quad_clean.evt
Size (bytes)413,827,20078,163,200
Size394.7 MB 74.5 MB
Events in quadrant A2,480,641536,749
Events in quadrant B2,293,627549,936
Events in quadrant C2,215,487537,292
Events in quadrant D7,943,352395,301

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01000
B01000
C01000
D01000

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0105061
B0104891
C099491
D0270601

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4958130.262203%
B4958290.584913%
C495810.020169%
D4958115923.376361%

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 6690 4959 6 6 0.09% 0.12%
B 6690 4959 23 23 0.34% 0.46%
C 6690 4959 0 0 0.00% 0.00%
D 6690 4959 1182 1182 17.67% 23.84%

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 416548 3870.31 522 510 107.5
A 15 223 32565 298.2 522 510 107.5
A 13 6 8074 70.37 522 510 107.5
B 5 255 133192 1315.79 520 504 100.8
B 0 156 54748 537.91 520 504 100.8
B 0 190 45923 450.39 520 504 100.8
C 15 214 202664 1664.7 514 517 121.4
C 8 229 6197 46.78 514 517 121.4
C 13 61 3367 23.47 514 517 121.4
D 1 52 3901991 33703.86 464 450 115.8
D 2 249 1546794 13358.25 464 450 115.8
D 13 249 401966 3468.54 464 450 115.8

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