ASTROSAT CZTI

Data Quality Report

Orbit 07932

Creation date: 2024-06-27T15:25:41.275931
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_117T01_9000001086_07932cztM0_level2.evt modeM0/AS1G06_117T01_9000001086_07932cztM0_level2_quad_clean.evt
Size (bytes)314,622,72056,496,960
Size300.0 MB 53.9 MB
Events in quadrant A2,201,550338,683
Events in quadrant B2,372,969351,478
Events in quadrant C2,183,016350,815
Events in quadrant D2,441,970331,184

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0980
B0980
C0980
D0980

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A099062
B0103001
C098991
D0108651

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4821160.331881%
B4821240.497822%
C482170.145198%
D4821491.016387%

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 6136 4822 0 0 0.00% 0.00%
B 6136 4822 2 2 0.03% 0.04%
C 6136 4822 0 0 0.00% 0.00%
D 6136 4822 44 44 0.72% 0.91%

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 0 226 5299 40.99 569 557 115.7
A 13 251 5280 40.82 569 557 115.7
A 12 194 4846 37.07 569 557 115.7
B 0 219 41251 368.92 577 563 110.3
B 11 51 35559 317.31 577 563 110.3
B 4 239 33926 302.51 577 563 110.3
C 13 61 4295 28.94 558 561 129.0
C 1 16 2624 15.99 558 561 129.0
C 14 205 1719 8.97 558 561 129.0
D 1 52 288357 2131.6 548 531 135.0
D 14 52 38669 282.44 548 531 135.0
D 5 233 23565 170.59 548 531 135.0

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