ASTROSAT CZTI

Data Quality Report

Orbit 41001

Creation date: 2024-06-27T22:23:12.208005
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_101T01_9000005586_41001cztM0_level2.fits modeM0/AS1T05_101T01_9000005586_41001cztM0_level2_quad_clean.evt
Size (bytes)192,666,24055,802,880
Size183.7 MB 53.2 MB
Events in quadrant A1,810,013373,110
Events in quadrant B1,516,895383,944
Events in quadrant C1,665,688364,726
Events in quadrant D1,876,070329,836

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A074192
B068411
C070831
D079471

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0680
B0680
C0680
D0680

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A335890.268017%
B335890.268017%
C3358130.387135%
D33581002.977963%

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 4732 3359 2 2 0.04% 0.06%
B 4732 3358 5 5 0.11% 0.15%
C 4731 3357 7 7 0.15% 0.21%
D 4732 3359 92 92 1.94% 2.74%

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 305356 3931.33 374 365 77.6
A 12 189 46229 591.19 374 365 77.6
A 13 248 5816 70.26 374 365 77.6
B 5 255 19361 261.84 370 359 72.6
B 5 32 16459 221.85 370 359 72.6
B 0 189 13805 185.28 370 359 72.6
C 15 214 144758 1686.3 361 363 85.6
C 14 254 74565 866.56 361 363 85.6
C 0 10 32419 374.36 361 363 85.6
D 13 249 302427 3463.64 359 348 87.2
D 2 249 63599 725.24 359 348 87.2
D 1 47 54259 618.14 359 348 87.2

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