ASTROSAT CZTI

Data Quality Report

Orbit 33166

Creation date: 2024-06-27T20:45:38.868978
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/AS1A11_080T02_9000004768_33166cztM0_level2.evt modeM0/AS1A11_080T02_9000004768_33166cztM0_level2_quad_clean.evt
Size (bytes)455,353,92070,937,280
Size434.3 MB 67.7 MB
Events in quadrant A2,500,628450,108
Events in quadrant B3,382,151450,163
Events in quadrant C2,699,857445,896
Events in quadrant D4,843,538425,927

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0170

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0108543
B0135362
C0114852
D0183622

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A536450.093214%
B53642364.399702%
C5364631.174497%
D53642715.052200%

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 7066 5365 0 0 0.00% 0.00%
B 7066 5365 126 126 1.78% 2.35%
C 7066 5365 41 41 0.58% 0.76%
D 7066 5365 210 210 2.97% 3.91%

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 14 235 21880 165.74 637 625 128.2
A 13 6 10236 74.94 637 625 128.2
A 13 254 9719 70.91 637 625 128.2
B 5 172 443794 3708.77 627 613 119.5
B 0 219 206472 1722.74 627 613 119.5
B 0 197 61712 511.31 627 613 119.5
C 0 10 170740 1200.45 614 619 141.7
C 1 241 39806 276.52 614 619 141.7
C 14 67 38988 270.75 614 619 141.7
D 8 195 1010882 6827.61 602 588 148.0
D 10 203 419882 2833.6 602 588 148.0
D 1 47 416012 2807.45 602 588 148.0

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