ASTROSAT CZTI

Data Quality Report

Orbit 45741

Creation date: 2024-06-27T23:15:38.511939
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_183T01_9000006124_45741cztM0_level2.fits modeM0/AS1T05_183T01_9000006124_45741cztM0_level2_quad_clean.evt
Size (bytes)604,903,680124,663,680
Size576.9 MB 118.9 MB
Events in quadrant A7,037,472827,763
Events in quadrant B5,365,900831,727
Events in quadrant C3,877,784833,258
Events in quadrant D5,506,560739,203

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01560
B01560
C01560
D01560

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0261610
B0210780
C0171840
D0217990

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A77971592.039246%
B77973424.386302%
C7798991.269556%
D77973494.476081%

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 7797 7797 13 13 0.17% 0.17%
B 7797 7797 145 145 1.86% 1.86%
C 7798 7798 77 77 0.99% 0.99%
D 7797 7797 289 289 3.71% 3.71%

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 3398314 18198.52 882 862 186.7
A 14 235 95227 505.47 882 862 186.7
A 0 243 48433 254.81 882 862 186.7
B 3 112 799213 4603.15 874 849 173.4
B 15 201 375521 2160.26 874 849 173.4
B 5 172 234833 1349.09 874 849 173.4
C 14 254 274007 1331.82 868 872 205.1
C 12 2 123427 597.58 868 872 205.1
C 15 208 43120 206.0 868 872 205.1
D 1 52 1306480 5931.63 855 825 220.1
D 2 249 365209 1655.41 855 825 220.1
D 1 47 110003 496.0 855 825 220.1

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