ASTROSAT CZTI

Data Quality Report

Orbit 05712

Creation date: 2024-06-27T14:58:15.727558
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/AS1A02_098T01_9000000736_05712cztM0_level2.evt modeM0/AS1A02_098T01_9000000736_05712cztM0_level2_quad_clean.evt
Size (bytes)453,695,04059,100,480
Size432.7 MB 56.4 MB
Events in quadrant A3,030,598332,139
Events in quadrant B3,680,180328,740
Events in quadrant C3,012,145339,323
Events in quadrant D3,562,923323,032

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136523
B0152652
C0136592
D0151742

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6682480.718348%
B66821492.229871%
C6682470.703382%
D6683861.286847%

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 7652 6683 0 0 0.00% 0.00%
B 7652 6683 69 69 0.90% 1.03%
C 7652 6683 0 0 0.00% 0.00%
D 7653 6684 30 30 0.39% 0.45%

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 0 226 7595 42.5 783 765 160.7
A 12 194 7418 41.4 783 765 160.7
A 13 6 6475 35.53 783 765 160.7
B 15 204 185255 1224.49 790 771 150.7
B 0 214 177384 1172.25 790 771 150.7
B 5 172 135857 896.62 790 771 150.7
C 14 67 17329 92.66 764 768 178.7
C 13 61 6264 30.75 764 768 178.7
C 8 128 5583 26.94 764 768 178.7
D 2 152 498516 2673.47 757 734 186.2
D 5 233 40054 211.18 757 734 186.2
D 12 233 35986 189.33 757 734 186.2

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