ASTROSAT CZTI

Data Quality Report

Orbit 36058

Creation date: 2022-08-10T02:44:57.404559
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/AS1T04_069T01_9000005158_36058cztM0_level2.evt modeM0/AS1T04_069T01_9000005158_36058cztM0_level2_quad_clean.evt
Size (bytes)556,378,56047,381,760
Size530.6 MB 45.2 MB
Events in quadrant A2,689,073281,795
Events in quadrant B4,810,608278,875
Events in quadrant C5,398,542255,161
Events in quadrant D3,597,822251,807

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0109523
B0177262
C0197382
D0140572

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280
B0280
C0280
D0290

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A522450.095712%
B522456610.834609%
C522472213.820827%
D52242514.804747%

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 7287 5225 0 0 0.00% 0.00%
B 7287 5225 432 432 5.93% 8.27%
C 7287 5225 610 610 8.37% 11.67%
D 7287 5225 195 195 2.68% 3.73%

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 164871 1264.06 645 634 129.9
A 13 6 25933 194.72 645 634 129.9
A 13 254 8005 56.73 645 634 129.9
B 5 236 2065147 17511.76 626 611 117.9
B 0 213 87963 740.94 626 611 117.9
B 5 172 47326 396.24 626 611 117.9
C 9 187 2424900 17490.83 602 607 138.6
C 15 214 211040 1518.23 602 607 138.6
C 0 207 151124 1085.95 602 607 138.6
D 12 6 477855 3199.83 613 598 149.2
D 12 235 283067 1893.85 613 598 149.2
D 12 17 121420 810.07 613 598 149.2

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