ASTROSAT CZTI

Data Quality Report

Orbit 53588

Creation date: 2025-08-24T20:25:16.667706
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/AS1A14_004T05_9000006502_53588cztM0_level2.fits modeM0/AS1A14_004T05_9000006502_53588cztM0_level2_quad_clean.evt
Size (bytes)930,349,44078,802,560
Size887.3 MB 75.2 MB
Events in quadrant A10,148,868420,221
Events in quadrant B5,250,920682,157
Events in quadrant C8,474,462515,231
Events in quadrant D10,050,721304,529

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0346772
B0201111
C0297841
D0343221

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6643286643.143158%
B66434937.421346%
C6644150422.636966%
D6644353653.220951%

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 7673 6644 2215 2215 28.87% 33.34%
B 7673 6644 291 291 3.79% 4.38%
C 7674 6644 1175 1175 15.31% 17.69%
D 7673 6644 2419 2419 31.53% 36.41%

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 3 62 6374183 40956.89 624 608 155.6
A 3 63 450311 2889.81 624 608 155.6
A 4 239 354357 2273.21 624 608 155.6
B 10 28 916361 5951.22 727 702 153.9
B 4 206 515493 3345.83 727 702 153.9
B 5 185 306957 1990.47 727 702 153.9
C 13 3 1795620 9799.93 662 656 183.2
C 15 224 1710223 9333.69 662 656 183.2
C 1 241 490387 2673.78 662 656 183.2
D 8 176 7277398 55357.49 461 440 131.5
D 7 70 188769 1432.66 461 440 131.5
D 13 153 176200 1337.04 461 440 131.5

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