ASTROSAT CZTI

Data Quality Report

Orbit 40644

Creation date: 2024-06-27T22:18:38.087635
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/AS1A12_029T01_9000005556_40644cztM0_level2.fits modeM0/AS1A12_029T01_9000005556_40644cztM0_level2_quad_clean.evt
Size (bytes)378,529,92086,768,640
Size361.0 MB 82.7 MB
Events in quadrant A2,857,098620,108
Events in quadrant B4,603,124594,219
Events in quadrant C3,088,333602,335
Events in quadrant D3,019,739413,548

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0121243
B0175752
C0129252
D0130692

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0320
B0320
C0320
D0320

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A567290.158674%
B56725359.432299%
C56721472.591678%
D5672167829.583921%

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 8868 5674 2 2 0.02% 0.04%
B 8867 5673 393 393 4.43% 6.93%
C 8868 5674 127 127 1.43% 2.24%
D 8868 5674 9 9 0.10% 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 10 83 477886 3813.76 612 600 125.1
A 2 79 8415 62.45 612 600 125.1
A 3 137 6832 49.8 612 600 125.1
B 7 202 1395326 11995.17 597 581 116.3
B 0 190 469523 4033.02 597 581 116.3
B 0 229 307037 2635.6 597 581 116.3
C 14 254 501901 3583.22 597 600 139.9
C 15 214 244995 1746.9 597 600 139.9
C 0 239 4677 29.14 597 600 139.9
D 12 191 320996 2462.24 528 512 130.2
D 12 227 303716 2329.48 528 512 130.2
D 12 79 239855 1838.84 528 512 130.2

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