ASTROSAT CZTI

Data Quality Report

Orbit 37907

Creation date: 2024-06-27T21:46:00.316188
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_059T01_9000005354_37907cztM0_level2.evt modeM0/AS1T05_059T01_9000005354_37907cztM0_level2_quad_clean.evt
Size (bytes)523,488,96056,888,640
Size499.2 MB 54.3 MB
Events in quadrant A2,845,023362,428
Events in quadrant B3,189,521361,937
Events in quadrant C2,853,680367,528
Events in quadrant D6,590,034242,653

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0116983
B0131202
C0117142
D0233572

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01120
B01120
C01120
D01120

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0270

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5533130.234954%
B55331091.969998%
C5533400.722935%
D5533177932.152539%

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 7235 5534 4 4 0.06% 0.07%
B 7235 5534 61 61 0.84% 1.10%
C 7235 5534 30 30 0.41% 0.54%
D 7235 5532 1004 1004 13.88% 18.15%

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 354750 2807.99 629 616 126.1
A 13 6 25109 194.21 629 616 126.1
A 12 189 13991 106.05 629 616 126.1
B 4 232 244937 2038.89 624 607 119.8
B 5 172 212453 1767.81 624 607 119.8
B 5 184 142822 1186.76 624 607 119.8
C 15 214 236929 1639.41 615 617 144.1
C 14 254 104917 723.58 615 617 144.1
C 0 10 92345 636.36 615 617 144.1
D 1 52 2548349 20534.17 505 489 124.1
D 2 249 1507836 12148.28 505 489 124.1
D 1 47 219041 1761.39 505 489 124.1

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