ASTROSAT CZTI

Data Quality Report

Orbit 45795

Creation date: 2024-06-27T23:16:16.887806
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_088T01_9000006126_45795cztM0_level2.fits modeM0/AS1T05_088T01_9000006126_45795cztM0_level2_quad_clean.evt
Size (bytes)623,482,560109,552,320
Size594.6 MB 104.5 MB
Events in quadrant A5,919,490737,054
Events in quadrant B6,479,598721,539
Events in quadrant C3,125,413751,385
Events in quadrant D7,039,777642,489

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0214181
B0240481
C0139491
D0257203

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66612113.167693%
B666268710.312219%
C6662851.275893%
D66616149.217835%

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 7641 6662 2 2 0.03% 0.03%
B 7642 6663 343 343 4.49% 5.15%
C 7642 6663 1 1 0.01% 0.02%
D 7641 6662 452 452 5.92% 6.78%

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 2879894 18057.06 763 747 159.4
A 13 248 47586 293.76 763 747 159.4
A 15 14 23131 140.39 763 747 159.4
B 3 112 3014069 20837.16 748 726 144.6
B 0 171 113658 780.92 748 726 144.6
B 4 171 109201 750.1 748 726 144.6
C 12 2 96064 539.42 761 764 176.7
C 2 14 29353 161.82 761 764 176.7
C 12 16 13417 71.62 761 764 176.7
D 11 241 2073919 11176.93 739 717 185.5
D 13 249 847095 4562.95 739 717 185.5
D 1 52 676427 3642.85 739 717 185.5

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