ASTROSAT CZTI

Data Quality Report

Orbit 33743

Creation date: 2024-06-27T20:52:01.913786
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/AS1A11_086T01_9000004816_33743cztM0_level2.evt modeM0/AS1A11_086T01_9000004816_33743cztM0_level2_quad_clean.evt
Size (bytes)486,227,52094,464,000
Size463.7 MB 90.1 MB
Events in quadrant A2,584,845639,742
Events in quadrant B4,304,820623,253
Events in quadrant C3,042,969654,255
Events in quadrant D4,461,939600,713

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01000
B01000
C01000
D01000

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0410
B0410
C0410
D0410

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0107493
B0161262
C0120432
D0166792

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4883581.187794%
B48834519.236125%
C48831192.437026%
D48832915.959451%

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 7004 4884 44 44 0.63% 0.90%
B 7004 4884 382 382 5.45% 7.82%
C 7004 4884 103 103 1.47% 2.11%
D 7004 4884 299 299 4.27% 6.12%

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 14 4 114902 940.96 611 600 121.5
A 15 237 91549 748.71 611 600 121.5
A 10 83 9842 76.08 611 600 121.5
B 5 172 1600305 14233.69 598 583 112.4
B 12 1 68302 602.53 598 583 112.4
B 0 213 41614 365.07 598 583 112.4
C 0 10 235231 1684.29 605 612 139.3
C 15 214 209910 1502.52 605 612 139.3
C 9 187 161670 1156.21 605 612 139.3
D 8 195 768575 4880.87 590 579 157.3
D 1 47 633040 4019.5 590 579 157.3
D 2 250 249083 1579.33 590 579 157.3

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