ASTROSAT CZTI

Data Quality Report

Orbit 53058

Creation date: 2025-07-21T12:17:30.262112
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_53058cztM0_level2.fits modeM0/AS1C09_011T07_9000006488_53058cztM0_level2_quad_clean.evt
Size (bytes)2,731,731,840189,089,280
Size2.5 GB 180.3 MB
Events in quadrant A18,165,4531,430,448
Events in quadrant B16,017,7661,540,649
Events in quadrant C30,827,332884,997
Events in quadrant D34,752,846650,135

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03560
B03560
C03560
D03560

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0664073
B0600373
C01037113
D01153413

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A17665249314.112652%
B17666218812.385373%
C17666843147.724442%
D176661064160.234348%

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 19500 17668 2544 2544 13.05% 14.40%
B 19501 17669 1656 1656 8.49% 9.37%
C 19501 17669 7650 7650 39.23% 43.30%
D 19501 17669 10093 10093 51.76% 57.12%

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 12 80 3334241 7556.9 1761 1720 441.0
A 7 206 3222351 7303.17 1761 1720 441.0
A 15 190 1628788 3689.57 1761 1720 441.0
B 10 254 3870917 10576.38 1736 1675 365.8
B 1 255 2387513 6521.57 1736 1675 365.8
B 10 63 1604525 4381.31 1736 1675 365.8
C 1 241 13856956 36329.86 1372 1358 381.4
C 15 224 5810628 15232.11 1372 1358 381.4
C 13 3 1894996 4965.18 1372 1358 381.4
D 15 78 13595018 38095.99 1217 1161 356.8
D 8 176 7209771 20201.71 1217 1161 356.8
D 12 17 4881104 13675.75 1217 1161 356.8

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