ASTROSAT CZTI

Data Quality Report

Orbit 36604

Creation date: 2024-06-27T21:29:02.796213
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/AS1A11_097T24_9000005224_36604cztM0_level2.evt modeM0/AS1A11_097T24_9000005224_36604cztM0_level2_quad_clean.evt
Size (bytes)417,778,56064,422,720
Size398.4 MB 61.4 MB
Events in quadrant A2,669,097403,317
Events in quadrant B2,621,390411,065
Events in quadrant C3,212,151379,041
Events in quadrant D3,780,969377,006

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0113003
B0112792
C0128092
D0149082

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0320
B0320
C0320
D0320

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5417100.184604%
B5417120.221525%
C54171562.879823%
D5417891.642976%

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 8733 5419 1 1 0.01% 0.02%
B 8733 5419 0 0 0.00% 0.00%
C 8733 5419 112 112 1.28% 2.07%
D 8733 5419 72 72 0.82% 1.33%

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 201939 1592.85 629 616 126.4
A 9 143 21957 168.84 629 616 126.4
A 15 223 11196 83.7 629 616 126.4
B 0 213 56969 469.1 625 608 120.1
B 0 219 37414 306.34 625 608 120.1
B 0 190 35010 286.34 625 608 120.1
C 0 10 441490 3179.32 596 599 138.7
C 15 214 230041 1654.54 596 599 138.7
C 0 207 180042 1293.99 596 599 138.7
D 12 235 750105 5098.66 602 585 147.0
D 2 137 269083 1826.48 602 585 147.0
D 2 250 104438 706.47 602 585 147.0

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