ASTROSAT CZTI

Data Quality Report

Orbit 37593

Creation date: 2024-06-27T21:41:57.168958
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_053T01_9000005338_37593cztM0_level2.evt modeM0/AS1T05_053T01_9000005338_37593cztM0_level2_quad_clean.evt
Size (bytes)405,192,96064,883,520
Size386.4 MB 61.9 MB
Events in quadrant A2,658,334416,325
Events in quadrant B3,558,790404,634
Events in quadrant C2,756,496409,885
Events in quadrant D2,960,301385,632

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01000
B01000
C01000
D01000

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0108793
B0136782
C0110852
D0121922

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0300
C0300
D0310

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4964160.322321%
B49643577.191781%
C4964931.873489%
D49641513.041902%

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 7057 4965 10 10 0.14% 0.20%
B 7056 4964 319 319 4.52% 6.43%
C 7057 4965 101 101 1.43% 2.03%
D 7057 4965 177 177 2.51% 3.56%

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 303896 2567.34 588 578 118.1
A 13 6 29205 242.3 588 578 118.1
A 9 143 22662 186.92 588 578 118.1
B 5 255 752622 6944.22 574 561 108.3
B 5 172 229940 2117.99 574 561 108.3
B 0 189 94028 863.04 574 561 108.3
C 0 10 291024 2216.39 564 567 131.0
C 15 214 214153 1629.81 564 567 131.0
C 14 254 39796 299.34 564 567 131.0
D 2 249 353135 2623.89 555 541 134.4
D 12 233 265624 1972.66 555 541 134.4
D 2 250 54590 402.21 555 541 134.4

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