ASTROSAT CZTI

Data Quality Report

Orbit 53384

Creation date: 2025-08-11T02:37:37.138131
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_011T09_9000006494_53384cztM0_level2.fits modeM0/AS1C09_011T09_9000006494_53384cztM0_level2_quad_clean.evt
Size (bytes)701,772,48085,593,600
Size669.3 MB 81.6 MB
Events in quadrant A4,345,626609,399
Events in quadrant B5,581,436613,939
Events in quadrant C11,251,562355,843
Events in quadrant D4,303,878566,066

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0172852
B0210581
C0378301
D0173201

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63883775.901691%
B638883713.102693%
C6389283844.420097%
D63891772.770387%

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 7533 6389 252 252 3.35% 3.94%
B 7532 6388 495 495 6.57% 7.75%
C 7534 6389 2579 2579 34.23% 40.37%
D 7534 6390 177 177 2.35% 2.77%

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 0 8 604785 3679.24 665 649 164.2
A 15 174 553522 3367.04 665 649 164.2
A 8 249 155168 941.03 665 649 164.2
B 4 171 1487501 10901.12 649 628 136.4
B 4 206 677363 4961.53 649 628 136.4
B 10 247 218015 1593.79 649 628 136.4
C 1 241 4942646 36927.24 487 482 133.8
C 9 38 1753620 13099.23 487 482 133.8
C 15 224 1569922 11726.66 487 482 133.8
D 2 249 573477 3011.09 665 635 190.2
D 3 12 355477 1865.19 665 635 190.2
D 13 46 152102 796.17 665 635 190.2

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