ASTROSAT CZTI

Data Quality Report

Orbit 43344

Creation date: 2024-06-27T22:50:49.931015
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_158T01_9000005868_43344cztM0_level2.fits modeM0/AS1T05_158T01_9000005868_43344cztM0_level2_quad_clean.evt
Size (bytes)294,816,96088,047,360
Size281.2 MB 84.0 MB
Events in quadrant A2,853,792594,158
Events in quadrant B2,367,785617,465
Events in quadrant C2,471,500583,677
Events in quadrant D2,835,138524,772

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0112692
B0100942
C0100612
D0117152

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280
B0290
C0290
D0290

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01000
B01000
C01000
D01000

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4936380.769854%
B4936100.202593%
C493670.141815%
D49361162.350081%

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 7058 4937 33 33 0.47% 0.67%
B 7058 4937 0 0 0.00% 0.00%
C 7058 4937 1 1 0.01% 0.02%
D 7058 4937 103 103 1.46% 2.09%

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 534571 4505.5 578 567 118.5
A 15 237 85606 717.49 578 567 118.5
A 3 137 6277 48.18 578 567 118.5
B 0 189 72596 650.76 575 558 110.7
B 4 173 19404 170.25 575 558 110.7
B 0 245 16980 148.35 575 558 110.7
C 15 214 210025 1568.49 571 576 133.5
C 3 233 25311 185.23 571 576 133.5
C 15 208 8698 60.82 571 576 133.5
D 12 6 356252 2623.11 562 547 135.6
D 13 249 96592 708.27 562 547 135.6
D 2 249 93711 687.02 562 547 135.6

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