ASTROSAT CZTI

Data Quality Report

Orbit 42346

Creation date: 2024-06-27T22:39:16.513979
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/AS1A12_102T01_9000005798_42346cztM0_level2.fits modeM0/AS1A12_102T01_9000005798_42346cztM0_level2_quad_clean.evt
Size (bytes)291,726,72086,189,760
Size278.2 MB 82.2 MB
Events in quadrant A2,699,331581,178
Events in quadrant B2,429,136580,402
Events in quadrant C2,328,028571,320
Events in quadrant D2,947,204521,564

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0220
D0220

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0112232
B0108852
C0101772
D0123342

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5062150.296326%
B5062701.382853%
C506140.079036%
D50611442.845287%

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 7125 5063 7 7 0.10% 0.14%
B 7125 5063 49 49 0.69% 0.97%
C 7124 5062 0 0 0.00% 0.00%
D 7124 5062 121 121 1.70% 2.39%

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 558976 5038.32 542 533 110.8
A 10 255 18576 162.79 542 533 110.8
A 13 6 12172 105.01 542 533 110.8
B 5 255 94851 914.65 538 524 103.1
B 5 172 84280 812.15 538 524 103.1
B 4 81 64460 619.96 538 524 103.1
C 15 214 210307 1671.29 538 541 125.5
C 9 54 11857 90.16 538 541 125.5
C 7 247 8388 62.52 538 541 125.5
D 12 233 419452 3254.65 531 516 128.7
D 12 6 106774 825.5 531 516 128.7
D 10 255 96245 743.7 531 516 128.7

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