ASTROSAT CZTI

Data Quality Report

Orbit 30327

Creation date: 2024-06-27T20:13:45.558589
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/AS1A10_071T29_9000004358_30327cztM0_level2.evt modeM0/AS1A10_071T29_9000004358_30327cztM0_level2_quad_clean.evt
Size (bytes)518,175,36092,243,520
Size494.2 MB 88.0 MB
Events in quadrant A3,282,837598,373
Events in quadrant B5,345,460602,247
Events in quadrant C3,320,209579,103
Events in quadrant D3,307,452564,012

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0240
C0240
D0240

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138802
B0201912
C0136892
D0141202

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6444490.760397%
B64441522.358783%
C6444681.055245%
D6444320.496586%

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 7634 6445 5 5 0.07% 0.08%
B 7634 6445 19 19 0.25% 0.29%
C 7634 6445 0 0 0.00% 0.00%
D 7634 6445 10 10 0.13% 0.16%

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 5 203 58721 351.26 824 809 164.9
A 8 192 26506 155.86 824 809 164.9
A 14 239 22308 130.4 824 809 164.9
B 6 159 1849101 11812.46 817 795 156.5
B 6 36 249166 1587.33 817 795 156.5
B 12 111 19153 117.33 817 795 156.5
C 14 238 129838 697.5 793 800 185.0
C 3 233 80383 430.18 793 800 185.0
C 2 114 14999 76.75 793 800 185.0
D 13 104 123984 593.71 784 771 207.5
D 8 195 102193 488.71 784 771 207.5
D 2 250 28183 132.09 784 771 207.5

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