ASTROSAT CZTI

Data Quality Report

Orbit 05975

Creation date: 2024-06-27T15:01:22.664176
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/AS1G06_086T01_9000000774_05975cztM0_level2.evt modeM0/AS1G06_086T01_9000000774_05975cztM0_level2_quad_clean.evt
Size (bytes)473,584,320119,401,920
Size451.6 MB 113.9 MB
Events in quadrant A3,476,990804,802
Events in quadrant B3,125,353829,824
Events in quadrant C2,931,395807,515
Events in quadrant D4,367,863721,493

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0147765
B0137212
C0132485
D0175502

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6487320.493294%
B6488260.400740%
C6487230.354555%
D64885879.047472%

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 7653 6489 3 3 0.04% 0.05%
B 7653 6489 1 1 0.01% 0.02%
C 7653 6489 0 0 0.00% 0.00%
D 7653 6489 430 430 5.62% 6.63%

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 15 234 566296 3779.61 743 727 149.6
A 8 192 36524 239.23 743 727 149.6
A 4 2 9357 57.67 743 727 149.6
B 15 204 69119 480.55 756 740 142.3
B 4 81 36353 250.28 756 740 142.3
B 0 219 31406 215.51 756 740 142.3
C 14 206 40198 232.73 734 737 169.6
C 1 16 12319 68.31 734 737 169.6
C 9 54 7743 41.32 734 737 169.6
D 2 63 1432305 8362.11 692 668 171.2
D 1 239 112497 653.19 692 668 171.2
D 8 195 56618 326.8 692 668 171.2

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