ASTROSAT CZTI

Data Quality Report

Orbit 09376

Creation date: 2024-06-27T15:45:14.749441
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/AS1A03_057T01_9000001330_09376cztM0_level2.evt modeM0/AS1A03_057T01_9000001330_09376cztM0_level2_quad_clean.evt
Size (bytes)449,006,400110,332,800
Size428.2 MB 105.2 MB
Events in quadrant A3,625,508732,577
Events in quadrant B3,221,337739,090
Events in quadrant C2,919,779720,605
Events in quadrant D3,396,714702,967

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0149982
B0138441
C0131131
D0143751

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6399671.047039%
B6399470.734490%
C6399300.468823%
D6399711.109548%

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 7519 6400 14 14 0.19% 0.22%
B 7519 6400 4 4 0.05% 0.06%
C 7519 6400 0 0 0.00% 0.00%
D 7519 6400 31 31 0.41% 0.48%

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 8 5 574551 3656.78 777 761 156.9
A 13 251 22820 140.58 777 761 156.9
A 12 236 19015 116.33 777 761 156.9
B 0 214 82491 552.54 775 755 147.9
B 0 219 44093 292.97 775 755 147.9
B 4 173 34126 225.59 775 755 147.9
C 8 128 10515 57.03 742 745 171.3
C 8 112 5577 28.21 742 745 171.3
C 13 61 5557 28.09 742 745 171.3
D 1 52 223919 1167.19 743 724 191.2
D 8 195 127106 660.91 743 724 191.2
D 2 152 45193 232.55 743 724 191.2

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