ASTROSAT CZTI

Data Quality Report

Orbit 53125

Creation date: 2025-07-28T21:06:36.498899
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_011T07_9000006488_53125cztM0_level2.fits modeM0/AS1C09_011T07_9000006488_53125cztM0_level2_quad_clean.evt
Size (bytes)1,063,788,48076,216,320
Size1014.5 MB 72.7 MB
Events in quadrant A15,619,072138,984
Events in quadrant B6,986,542629,754
Events in quadrant C8,414,764561,145
Events in quadrant D7,807,853480,983

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0512521
B0257521
C0300451
D0282231

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7120591183.019663%
B7120113015.870787%
C7120113615.955056%
D7121179125.150962%

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 7180 7121 5281 5281 73.55% 74.16%
B 7180 7121 796 796 11.09% 11.18%
C 7180 7121 1115 1115 15.53% 15.66%
D 7181 7122 1508 1508 21.00% 21.17%

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 9 191 13512298 129528.31 415 403 104.3
A 3 62 183580 1755.97 415 403 104.3
A 0 8 118577 1132.84 415 403 104.3
B 10 254 3619095 23200.78 729 704 156.0
B 0 197 170951 1091.61 729 704 156.0
B 4 81 57778 365.95 729 704 156.0
C 0 240 2059530 10758.32 695 687 191.4
C 9 38 1380243 7208.76 695 687 191.4
C 15 224 1149421 6002.62 695 687 191.4
D 12 3 3955227 21379.9 648 617 185.0
D 2 120 328337 1771.76 648 617 185.0
D 8 176 163585 881.06 648 617 185.0

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