ASTROSAT CZTI

Data Quality Report

Orbit 42103

Creation date: 2024-06-27T22:36:57.026042
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/AS1A12_044T22_9000005750_42103cztM0_level2.fits modeM0/AS1A12_044T22_9000005750_42103cztM0_level2_quad_clean.evt
Size (bytes)505,825,92090,725,760
Size482.4 MB 86.5 MB
Events in quadrant A6,709,093593,037
Events in quadrant B2,888,252635,464
Events in quadrant C2,723,624620,379
Events in quadrant D5,945,474486,087

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0239882
B0127592
C0118292
D0217782

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0170
C0170
D0170

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A58955629.533503%
B58951312.222222%
C589540.067854%
D5895108118.337574%

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 7208 5896 479 479 6.65% 8.12%
B 7208 5896 86 86 1.19% 1.46%
C 7208 5896 0 0 0.00% 0.00%
D 7208 5896 920 920 12.76% 15.60%

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 15 222 3671729 28220.98 635 623 130.1
A 10 83 568426 4364.89 635 623 130.1
A 13 6 11967 87.21 635 623 130.1
B 5 255 371916 2967.34 637 618 125.1
B 12 111 16116 123.86 637 618 125.1
B 11 111 14966 114.67 637 618 125.1
C 15 214 243221 1620.76 634 637 149.7
C 13 61 4240 24.07 634 637 149.7
C 15 111 4038 22.72 634 637 149.7
D 2 249 2139994 14882.06 586 569 143.8
D 13 249 750725 5218.16 586 569 143.8
D 12 6 397145 2758.62 586 569 143.8

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