ASTROSAT CZTI

Data Quality Report

Orbit 54734

Creation date: 2025-11-11T20:35:48.582117
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/AS1A14_103T01_9000006524_54734cztM0_level2.fits modeM0/AS1A14_103T01_9000006524_54734cztM0_level2_quad_clean.evt
Size (bytes)510,546,24096,111,360
Size486.9 MB 91.7 MB
Events in quadrant A3,112,799659,930
Events in quadrant B6,857,276597,785
Events in quadrant C3,566,880624,849
Events in quadrant D4,853,600571,381

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137952
B0247132
C0151622
D0189472

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65391181.804557%
B6539133820.461844%
C65401632.492355%
D65403575.458716%

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 7719 6539 3 3 0.04% 0.05%
B 7719 6539 1122 1122 14.54% 17.16%
C 7720 6540 80 80 1.04% 1.22%
D 7720 6540 292 292 3.78% 4.46%

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 11 3 113687 624.98 737 720 180.8
A 4 3 52961 289.02 737 720 180.8
A 3 14 27532 148.33 737 720 180.8
B 0 173 1964902 14006.1 666 644 140.2
B 2 249 1802118 12845.37 666 644 140.2
B 5 185 119928 850.55 666 644 140.2
C 13 3 223922 1132.57 710 704 197.1
C 6 223 139926 706.39 710 704 197.1
C 12 252 117717 593.71 710 704 197.1
D 3 12 863926 4302.71 704 674 200.6
D 11 129 563343 2804.51 704 674 200.6
D 10 181 183176 909.65 704 674 200.6

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