ASTROSAT CZTI

Data Quality Report

Orbit 29002

Creation date: 2024-06-27T19:59:02.157380
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/AS1A10_073T06_9000004156_29002cztM0_level2.evt modeM0/AS1A10_073T06_9000004156_29002cztM0_level2_quad_clean.evt
Size (bytes)575,890,560100,702,080
Size549.2 MB 96.0 MB
Events in quadrant A3,185,325668,740
Events in quadrant B3,906,545674,115
Events in quadrant C4,053,828636,478
Events in quadrant D5,834,986596,936

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D070

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138471
B0158341
C0166691
D0219191

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6790630.927835%
B67902613.843888%
C67911251.840671%
D67914797.053453%

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 7475 6791 0 0 0.00% 0.00%
B 7475 6791 147 147 1.97% 2.16%
C 7476 6792 0 0 0.00% 0.00%
D 7476 6792 403 403 5.39% 5.93%

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 12 16 44631 269.05 801 783 163.0
A 12 210 22845 135.37 801 783 163.0
A 12 194 13913 80.57 801 783 163.0
B 10 245 559526 3691.62 789 769 151.4
B 10 246 215903 1421.36 789 769 151.4
B 12 111 18781 119.0 789 769 151.4
C 3 233 936306 5213.13 764 768 179.5
C 14 238 123135 681.87 764 768 179.5
C 2 114 15966 84.69 764 768 179.5
D 1 52 1562279 8562.49 758 735 182.4
D 8 195 792887 4343.64 758 735 182.4
D 7 80 329088 1800.47 758 735 182.4

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