ASTROSAT CZTI

Data Quality Report

Orbit 07052

Creation date: 2024-06-27T15:15:00.453110
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_155T01_9000000966_07052cztM0_level2.evt modeM0/AS1A02_155T01_9000000966_07052cztM0_level2_quad_clean.evt
Size (bytes)280,267,20048,568,320
Size267.3 MB 46.3 MB
Events in quadrant A1,806,069305,186
Events in quadrant B1,933,857308,326
Events in quadrant C2,322,134296,390
Events in quadrant D2,166,167291,803

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A079352
B081881
C095301
D089171

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0800
B0800
C0800
D0800

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A37941042.741170%
B3794982.583026%
C37942426.378492%
D37941323.479178%

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 4334 3795 0 0 0.00% 0.00%
B 4334 3795 0 0 0.00% 0.00%
C 4334 3795 50 50 1.15% 1.32%
D 4334 3795 53 53 1.22% 1.40%

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 0 226 4500 41.19 468 455 98.2
A 12 194 4177 37.9 468 455 98.2
A 8 15 1986 15.59 468 455 98.2
B 0 214 63416 674.93 473 461 93.3
B 10 246 24197 254.47 473 461 93.3
B 12 111 9377 95.59 473 461 93.3
C 9 68 560581 5211.04 450 453 107.5
C 13 61 3499 28.34 450 453 107.5
C 8 222 2455 18.63 450 453 107.5
D 12 233 257972 2273.7 456 441 113.3
D 8 195 150860 1328.02 456 441 113.3
D 2 14 20139 173.91 456 441 113.3

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