ASTROSAT CZTI

Data Quality Report

Orbit 45450

Creation date: 2024-06-27T23:12:26.953407
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/AS1A13_041T15_9000006086_45450cztM0_level2.fits modeM0/AS1A13_041T15_9000006086_45450cztM0_level2_quad_clean.evt
Size (bytes)524,773,440120,277,440
Size500.5 MB 114.7 MB
Events in quadrant A6,073,710802,440
Events in quadrant B3,752,101825,816
Events in quadrant C3,534,873790,458
Events in quadrant D5,474,411693,649

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0232980
B0163540
C0162030
D0214410

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7610520.683311%
B7611570.748916%
C7611280.367889%
D76113694.848246%

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 7610 7610 0 0 0.00% 0.00%
B 7611 7611 11 11 0.14% 0.14%
C 7611 7611 9 9 0.12% 0.12%
D 7611 7611 302 302 3.97% 3.97%

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 2769979 15585.54 849 830 177.7
A 9 191 11029 57.4 849 830 177.7
A 0 243 10191 52.69 849 830 177.7
B 0 171 119293 696.73 853 826 170.0
B 5 172 94583 551.4 853 826 170.0
B 10 3 32152 184.23 853 826 170.0
C 0 239 167553 832.55 840 842 200.2
C 14 96 46166 226.35 840 842 200.2
C 14 254 14827 69.84 840 842 200.2
D 1 52 664159 3151.38 819 792 210.5
D 11 241 376447 1784.58 819 792 210.5
D 13 249 375796 1781.49 819 792 210.5

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