ASTROSAT CZTI

Data Quality Report

Orbit 32834

Creation date: 2024-06-27T20:42:32.176678
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/AS1C06_002T09_9000004734_32834cztM0_level2.evt modeM0/AS1C06_002T09_9000004734_32834cztM0_level2_quad_clean.evt
Size (bytes)517,449,60093,876,480
Size493.5 MB 89.5 MB
Events in quadrant A2,572,387642,312
Events in quadrant B3,943,588614,657
Events in quadrant C2,851,948617,821
Events in quadrant D5,917,739570,232

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0114553
B0153682
C0122982
D0215962

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A568940.070311%
B56893476.099490%
C5689380.667956%
D56893045.343646%

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 7092 5690 0 0 0.00% 0.00%
B 7092 5690 227 227 3.20% 3.99%
C 7092 5690 30 30 0.42% 0.53%
D 7092 5690 264 264 3.72% 4.64%

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 14 207 15743 115.0 653 641 131.3
A 9 143 12101 87.27 653 641 131.3
A 13 254 10504 75.11 653 641 131.3
B 5 172 890070 7433.62 633 618 119.7
B 0 219 189956 1582.4 633 618 119.7
B 8 128 188740 1572.24 633 618 119.7
C 0 10 130695 903.34 626 630 144.0
C 1 241 107266 740.62 626 630 144.0
C 3 233 82629 569.51 626 630 144.0
D 8 195 1887016 12653.36 615 602 149.1
D 10 203 420265 2814.94 615 602 149.1
D 12 6 404198 2707.17 615 602 149.1

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