ASTROSAT CZTI

Data Quality Report

Orbit 33425

Creation date: 2024-06-27T20:48:41.657630
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/AS1A11_046T04_9000004792_33425cztM0_level2.evt modeM0/AS1A11_046T04_9000004792_33425cztM0_level2_quad_clean.evt
Size (bytes)432,512,64086,832,000
Size412.5 MB 82.8 MB
Events in quadrant A2,627,080588,939
Events in quadrant B3,003,547589,792
Events in quadrant C2,636,293570,582
Events in quadrant D4,496,472533,520

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0103693
B0120352
C0107072
D0169142

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0210

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01000
B01000
C01000
D01000

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A494640.080873%
B4946911.839871%
C4946330.667206%
D49471302.627855%

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 7068 4947 0 0 0.00% 0.00%
B 7068 4947 60 60 0.85% 1.21%
C 7068 4947 29 29 0.41% 0.59%
D 7069 4948 104 104 1.47% 2.10%

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 15 47 344374 2962.56 588 579 116.0
A 13 254 9118 73.58 588 579 116.0
A 13 6 6714 52.87 588 579 116.0
B 5 172 337559 3116.01 577 563 108.1
B 5 255 231976 2139.74 577 563 108.1
B 0 213 95805 880.65 577 563 108.1
C 15 214 221608 1743.22 557 560 126.8
C 0 10 153191 1203.67 557 560 126.8
C 9 187 66397 519.2 557 560 126.8
D 8 195 1489994 11001.46 558 543 135.4
D 2 250 276273 2036.61 558 543 135.4
D 13 249 158965 1170.14 558 543 135.4

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