ASTROSAT CZTI

Data Quality Report

Orbit 45822

Creation date: 2024-06-27T23:16:33.480213
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/AS1T05_185T01_9000006128_45822cztM0_level2.fits modeM0/AS1T05_185T01_9000006128_45822cztM0_level2_quad_clean.evt
Size (bytes)526,158,720113,820,480
Size501.8 MB 108.5 MB
Events in quadrant A5,915,139760,277
Events in quadrant B5,220,503780,132
Events in quadrant C3,040,493773,983
Events in quadrant D4,800,657682,359

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0215642
B0198442
C0132372
D0185172

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64522113.270304%
B64524086.323621%
C6453671.038277%
D64532834.385557%

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 7612 6453 34 34 0.45% 0.53%
B 7612 6453 183 183 2.40% 2.84%
C 7613 6454 0 0 0.00% 0.00%
D 7613 6454 195 195 2.56% 3.02%

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 2871182 18505.11 758 743 155.1
A 13 248 84243 538.31 758 743 155.1
A 15 14 15541 95.4 758 743 155.1
B 3 112 1828264 12645.59 753 729 144.5
B 0 171 113121 777.69 753 729 144.5
B 0 189 86858 595.97 753 729 144.5
C 3 233 41844 229.3 768 773 179.1
C 13 61 5220 24.83 768 773 179.1
C 1 3 3410 14.72 768 773 179.1
D 11 241 888981 4685.57 752 729 189.6
D 13 249 362357 1907.61 752 729 189.6
D 12 2 168031 882.53 752 729 189.6

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