ASTROSAT CZTI

Data Quality Report

Orbit 45890

Creation date: 2024-06-27T23:17:22.473119
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_188T01_9000006138_45890cztM0_level2.fits modeM0/AS1T05_188T01_9000006138_45890cztM0_level2_quad_clean.evt
Size (bytes)510,180,480103,380,480
Size486.5 MB 98.6 MB
Events in quadrant A5,610,814699,632
Events in quadrant B5,801,612663,433
Events in quadrant C2,852,029696,110
Events in quadrant D4,119,723620,647

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0212721
B0216321
C0131411
D0168141

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64591332.059142%
B646074511.532508%
C6459130.201270%
D64591702.631986%

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 7429 6460 34 34 0.46% 0.53%
B 7430 6461 371 371 4.99% 5.74%
C 7429 6460 7 7 0.09% 0.11%
D 7429 6460 146 146 1.97% 2.26%

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 2749160 18309.05 718 702 150.1
A 7 3 35435 231.38 718 702 150.1
A 4 0 26009 168.58 718 702 150.1
B 3 112 2789238 20105.56 702 682 138.7
B 4 171 91730 656.46 702 682 138.7
B 5 172 41751 296.11 702 682 138.7
C 2 14 50035 295.43 712 716 166.9
C 12 2 21604 125.12 712 716 166.9
C 3 233 5019 25.78 712 716 166.9
D 1 52 897047 5124.83 695 673 174.9
D 11 192 120756 686.55 695 673 174.9
D 5 171 97147 551.57 695 673 174.9

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