ASTROSAT CZTI

Data Quality Report

Orbit 43106

Creation date: 2024-06-27T22:48:06.539939
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_153T01_9000005848_43106cztM0_level2.fits modeM0/AS1T05_153T01_9000005848_43106cztM0_level2_quad_clean.evt
Size (bytes)359,879,04099,498,240
Size343.2 MB 94.9 MB
Events in quadrant A4,050,995646,230
Events in quadrant B2,976,244674,492
Events in quadrant C3,063,710656,278
Events in quadrant D2,749,297604,224

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0290
B0290
C0290
D0290

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0161892
B0132422
C0130252
D0128752

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A61782433.933312%
B6179470.760641%
C617980.129471%
D6179220.356045%

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 9134 6180 149 149 1.63% 2.41%
B 9135 6181 25 25 0.27% 0.40%
C 9135 6181 6 6 0.07% 0.10%
D 9135 6181 13 13 0.14% 0.21%

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 643300 4794.1 658 645 134.1
A 15 237 521485 3885.38 658 645 134.1
A 15 222 230434 1714.19 658 645 134.1
B 5 255 148598 1150.45 661 643 128.6
B 0 229 139645 1080.83 661 643 128.6
B 3 112 75843 584.73 661 643 128.6
C 15 214 277704 1824.83 650 654 151.8
C 14 254 166752 1094.03 650 654 151.8
C 8 79 67378 439.49 650 654 151.8
D 1 52 128313 791.8 650 629 161.3
D 13 249 56218 344.72 650 629 161.3
D 5 32 35396 215.6 650 629 161.3

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