ASTROSAT CZTI

Data Quality Report

Orbit 53203

Creation date: 2025-07-30T00:24:31.875182
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/AS1C09_011T06_9000006490_53203cztM0_level2.fits modeM0/AS1C09_011T06_9000006490_53203cztM0_level2_quad_clean.evt
Size (bytes)2,046,709,440222,877,440
Size1.9 GB 212.6 MB
Events in quadrant A10,368,8371,642,757
Events in quadrant B9,599,0181,776,961
Events in quadrant C18,387,8891,318,891
Events in quadrant D36,011,862761,322

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03680
B03680
C03680
D03680

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0436313
B0412103
C0673473
D01194673

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A180885783.195489%
B180882991.653030%
C18088294816.298098%
D18088972453.759398%

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 19352 18089 306 306 1.58% 1.69%
B 19352 18089 86 86 0.44% 0.48%
C 19352 18090 2762 2762 14.27% 15.27%
D 19352 18090 10446 10446 53.98% 57.74%

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 15 174 698861 1482.16 1883 1834 470.3
A 7 206 535676 1135.16 1883 1834 470.3
A 3 62 427621 905.39 1883 1834 470.3
B 7 0 528759 1348.38 1865 1805 390.8
B 0 213 331158 842.76 1865 1805 390.8
B 4 81 319500 812.92 1865 1805 390.8
C 15 224 4494750 9534.29 1717 1700 471.3
C 1 241 2703019 5732.22 1717 1700 471.3
C 13 3 1426817 3024.11 1717 1700 471.3
D 15 125 25883802 59523.84 1495 1425 434.8
D 10 172 790414 1814.5 1495 1425 434.8
D 12 3 728138 1671.28 1495 1425 434.8

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