ASTROSAT CZTI

Data Quality Report

Orbit 37041

Creation date: 2024-06-27T21:34:53.540095
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_044T01_9000005270_37041cztM0_level2.evt modeM0/AS1T05_044T01_9000005270_37041cztM0_level2_quad_clean.evt
Size (bytes)505,837,44083,865,600
Size482.4 MB 80.0 MB
Events in quadrant A3,053,615566,802
Events in quadrant B3,908,702547,654
Events in quadrant C3,415,003540,092
Events in quadrant D4,581,901512,625

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0124953
B0151392
C0133522
D0173332

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0210

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5320200.375940%
B53203195.996241%
C53201061.992481%
D53202865.375940%

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 7233 5321 8 8 0.11% 0.15%
B 7233 5321 160 160 2.21% 3.01%
C 7233 5321 108 108 1.49% 2.03%
D 7233 5321 277 277 3.83% 5.21%

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 10 83 271106 2069.33 655 645 130.7
A 11 254 201076 1533.53 655 645 130.7
A 13 248 32548 244.09 655 645 130.7
B 5 184 429820 3599.82 633 619 119.2
B 5 172 341570 2859.65 633 619 119.2
B 0 229 105288 877.89 633 619 119.2
C 15 214 232041 1614.05 623 629 143.4
C 0 10 191960 1334.49 623 629 143.4
C 14 254 177620 1234.47 623 629 143.4
D 12 235 692163 4557.44 624 609 151.7
D 2 250 537660 3539.24 624 609 151.7
D 12 233 241860 1589.88 624 609 151.7

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