ASTROSAT CZTI

Data Quality Report

Orbit 04122

Creation date: 2024-06-27T14:37:41.823456
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/AS1G05_195T01_9000000530_04122cztM0_level2.evt modeM0/AS1G05_195T01_9000000530_04122cztM0_level2_quad_clean.evt
Size (bytes)403,545,60079,721,280
Size384.9 MB 76.0 MB
Events in quadrant A2,820,583518,718
Events in quadrant B3,070,473512,749
Events in quadrant C3,150,026501,533
Events in quadrant D2,810,541500,757

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120572
B0128501
C0134801
D0120901

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A54291292.376128%
B5429861.584085%
C54292604.789096%
D5429831.528827%

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 6524 5430 51 51 0.78% 0.94%
B 6524 5430 14 14 0.21% 0.26%
C 6524 5430 138 138 2.12% 2.54%
D 6524 5430 20 20 0.31% 0.37%

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 15 234 191151 1470.37 626 613 129.6
A 0 199 131831 1012.6 626 613 129.6
A 0 118 27022 203.8 626 613 129.6
B 15 204 450651 3742.88 629 615 120.2
B 10 16 39791 325.82 629 615 120.2
B 4 48 37018 302.76 629 615 120.2
C 9 144 816480 5923.08 593 596 137.7
C 13 61 4947 31.59 593 596 137.7
C 14 67 4385 27.51 593 596 137.7
D 2 37 353059 2439.27 601 584 144.5
D 10 172 66892 458.88 601 584 144.5
D 13 239 55286 378.56 601 584 144.5

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