ASTROSAT CZTI

Data Quality Report

Orbit 41465

Creation date: 2024-06-27T22:29:34.385271
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/AS1T05_110T01_9000005672_41465cztM0_level2.fits modeM0/AS1T05_110T01_9000005672_41465cztM0_level2_quad_clean.evt
Size (bytes)185,005,44046,967,040
Size176.4 MB 44.8 MB
Events in quadrant A1,557,307316,202
Events in quadrant B1,453,849324,209
Events in quadrant C1,638,464303,497
Events in quadrant D1,971,695271,741

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0600
B0600
C0600
D0600

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A062082
B062631
C065591
D078511

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A289280.276625%
B289240.138313%
C2892862.973721%
D28921866.431535%

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 4205 2893 2 2 0.05% 0.07%
B 4205 2893 2 2 0.05% 0.07%
C 4205 2893 77 77 1.83% 2.66%
D 4205 2893 168 168 4.00% 5.81%

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 304895 4542.53 318 311 67.1
A 13 6 8592 123.5 318 311 67.1
A 13 248 7940 113.78 318 311 67.1
B 0 190 83960 1319.62 320 311 63.4
B 5 255 66407 1042.71 320 311 63.4
B 0 245 27928 435.68 320 311 63.4
C 0 10 247350 3334.16 311 312 74.1
C 15 214 123351 1660.6 311 312 74.1
C 0 15 41524 556.22 311 312 74.1
D 12 233 468039 6113.94 305 296 76.5
D 13 249 66782 869.05 305 296 76.5
D 5 222 53571 696.37 305 296 76.5

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