ASTROSAT CZTI

Data Quality Report

Orbit 07323

Creation date: 2024-06-27T15:18:27.417284
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/AS1A02_178T01_9000001006_07323cztM0_level2.evt modeM0/AS1A02_178T01_9000001006_07323cztM0_level2_quad_clean.evt
Size (bytes)1,453,674,240299,805,120
Size1.4 GB 285.9 MB
Events in quadrant A11,337,1911,907,430
Events in quadrant B10,780,2621,958,245
Events in quadrant C9,952,4081,909,989
Events in quadrant D10,498,2221,821,974

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0481676
B0464675
C0444745
D0467105

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A04380
B04380
C04380
D04380

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0470
B0470
C0470
D0480

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A215414462.070470%
B215412191.016666%
C215411160.538508%
D215412451.137366%

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 26410 21542 152 152 0.58% 0.71%
B 26410 21542 10 10 0.04% 0.05%
C 26410 21543 4 4 0.02% 0.02%
D 26410 21543 125 125 0.47% 0.58%

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 8 15 760281 1467.95 2569 2520 516.2
A 14 111 298243 572.88 2569 2520 516.2
A 13 240 231590 443.76 2569 2520 516.2
B 11 51 260729 531.87 2611 2552 485.4
B 0 214 163748 332.08 2611 2552 485.4
B 4 81 103512 207.99 2611 2552 485.4
C 9 68 110590 188.09 2510 2525 574.5
C 1 16 38568 62.73 2510 2525 574.5
C 13 61 19424 29.41 2510 2525 574.5
D 14 34 374358 616.82 2489 2415 603.0
D 12 233 211867 347.35 2489 2415 603.0
D 2 14 197181 323.0 2489 2415 603.0

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