ASTROSAT CZTI

Data Quality Report

Orbit 13317

Creation date: 2024-06-27T16:39:21.575191
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/AS1A04_196T04_9000001982_13317cztM0_level2.evt modeM0/AS1A04_196T04_9000001982_13317cztM0_level2_quad_clean.evt
Size (bytes)249,442,56074,952,000
Size237.9 MB 71.5 MB
Events in quadrant A1,924,690496,167
Events in quadrant B1,748,435517,803
Events in quadrant C1,757,303517,016
Events in quadrant D1,878,213484,565

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D020

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0720
B0720
C0720
D0720

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080921
B076021
C076321
D081431

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A359080.222841%
B359080.222841%
C359080.222841%
D3590240.668524%

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 3591 3591 0 0 0.00% 0.00%
B 3591 3591 0 0 0.00% 0.00%
C 3591 3591 3 3 0.08% 0.08%
D 3591 3591 19 19 0.53% 0.53%

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 8 15 226925 2548.83 437 431 88.9
A 1 162 9257 99.32 437 431 88.9
A 1 178 3829 38.24 437 431 88.9
B 3 64 9852 113.11 444 434 83.3
B 12 111 9172 104.94 444 434 83.3
B 11 111 7776 88.18 444 434 83.3
C 6 96 39494 387.12 439 443 100.9
C 13 61 3003 25.38 439 443 100.9
C 15 208 2643 21.81 439 443 100.9
D 1 52 170524 1641.5 430 420 103.6
D 8 195 29918 284.66 430 420 103.6
D 14 34 24963 236.84 430 420 103.6

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