ASTROSAT CZTI

Data Quality Report

Orbit 09515

Creation date: 2024-06-27T15:47:08.184245
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/AS1G05_230T06_9000001350_09515cztM0_level2.evt modeM0/AS1G05_230T06_9000001350_09515cztM0_level2_quad_clean.evt
Size (bytes)359,700,48075,850,560
Size343.0 MB 72.3 MB
Events in quadrant A2,679,091483,520
Events in quadrant B2,539,862488,574
Events in quadrant C2,446,950481,961
Events in quadrant D2,855,125461,378

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0179236357
B0172215975
C0170035718
D0193197364

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A017052
B016959
C016941
D017062

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A061
B052
C052
D052

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5386380.705533%
B5436340.625460%
C5461320.585973%
D5363180.335633%

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 8777 6624 0 0 0.00% 0.00%
B 8777 6671 0 0 0.00% 0.00%
C 8775 6705 15 15 0.17% 0.22%
D 8777 6601 7 7 0.08% 0.11%

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 1 162 119191 909.5 622 607 130.4
A 1 178 46993 355.77 622 607 130.4
A 1 161 44235 334.61 622 607 130.4
B 0 219 30402 241.02 631 614 123.6
B 0 214 27704 219.19 631 614 123.6
B 0 187 16143 125.64 631 614 123.6
C 4 254 69329 480.48 606 607 143.0
C 9 68 7130 45.61 606 607 143.0
C 13 61 4527 27.41 606 607 143.0
D 8 195 340669 2142.78 592 578 158.7
D 1 52 69737 435.74 592 578 158.7
D 2 152 42548 264.44 592 578 158.7

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