ASTROSAT CZTI

Data Quality Report

Orbit 44880

Creation date: 2024-06-27T23:08:32.257627
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/AS1A13_042T03_9000006030_44880cztM0_level2.fits modeM0/AS1A13_042T03_9000006030_44880cztM0_level2_quad_clean.evt
Size (bytes)197,962,56046,978,560
Size188.8 MB 44.8 MB
Events in quadrant A2,074,803322,403
Events in quadrant B1,403,175330,179
Events in quadrant C1,235,628318,124
Events in quadrant D2,414,850269,689

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0500
B0500
C0500
D0500

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080420
B057800
C052370
D089330

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2541190.747737%
B2542150.590087%
C254220.078678%
D25422499.795437%

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 2541 2541 13 13 0.51% 0.51%
B 2542 2542 5 5 0.20% 0.20%
C 2542 2542 1 1 0.04% 0.04%
D 2542 2542 189 189 7.44% 7.44%

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 812925 12686.16 305 299 64.1
A 13 248 66938 1040.32 305 299 64.1
A 15 174 5691 84.18 305 299 64.1
B 5 255 90646 1494.62 306 298 60.4
B 0 155 40220 660.43 306 298 60.4
B 0 183 23738 387.77 306 298 60.4
C 1 3 31700 432.48 305 307 72.6
C 14 254 6341 83.12 305 307 72.6
C 3 233 5071 65.62 305 307 72.6
D 1 52 591501 7953.25 292 283 74.3
D 5 171 256376 3445.05 292 283 74.3
D 2 249 179541 2411.44 292 283 74.3

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