ASTROSAT CZTI

Data Quality Report

Orbit 53383

Creation date: 2025-08-11T00:50:01.415376
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/AS1C09_011T09_9000006494_53383cztM0_level2.fits modeM0/AS1C09_011T09_9000006494_53383cztM0_level2_quad_clean.evt
Size (bytes)620,553,60081,820,800
Size591.8 MB 78.0 MB
Events in quadrant A4,780,457550,574
Events in quadrant B4,692,108604,140
Events in quadrant C9,455,300372,485
Events in quadrant D3,580,444533,499

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0184361
B0181111
C0321391
D0148961

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A596463110.580148%
B59645258.802817%
C5964226237.927565%
D59651672.799665%

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 7144 5965 439 439 6.15% 7.36%
B 7144 5965 292 292 4.09% 4.90%
C 7144 5965 2012 2012 28.16% 33.73%
D 7145 5966 101 101 1.41% 1.69%

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 15 174 726509 4749.26 612 598 152.8
A 12 115 726237 4747.48 612 598 152.8
A 0 8 460270 3007.4 612 598 152.8
B 4 206 687886 5334.94 620 598 128.8
B 10 28 472780 3665.22 620 598 128.8
B 4 171 386374 2994.51 620 598 128.8
C 1 241 4054584 30542.3 479 473 132.7
C 9 38 1539696 11595.99 479 473 132.7
C 15 224 1218409 9175.52 479 473 132.7
D 2 249 355725 1990.43 624 597 178.4
D 2 153 187400 1047.0 624 597 178.4
D 3 12 116363 648.85 624 597 178.4

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