ASTROSAT CZTI

Data Quality Report

Orbit 53213

Creation date: 2025-07-31T12:55:28.397587
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_53213cztM0_level2.fits modeM0/AS1C09_011T06_9000006490_53213cztM0_level2_quad_clean.evt
Size (bytes)986,875,20089,700,480
Size941.2 MB 85.5 MB
Events in quadrant A4,703,797690,882
Events in quadrant B4,810,702731,374
Events in quadrant C12,343,356381,201
Events in quadrant D14,078,812376,867

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0197660
B0200710
C0420390
D0471640

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A76932953.834655%
B76943915.081882%
C7694351245.645958%
D7694345744.931115%

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 7693 7693 277 277 3.60% 3.60%
B 7694 7694 308 308 4.00% 4.00%
C 7694 7694 3287 3287 42.72% 42.72%
D 7694 7694 3629 3629 47.17% 47.17%

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 3 62 1350565 7079.34 770 751 190.7
A 0 8 89282 464.32 770 751 190.7
A 4 249 66596 345.34 770 751 190.7
B 2 249 789160 4769.96 766 738 165.3
B 10 28 312226 1884.51 766 738 165.3
B 4 81 249209 1503.25 766 738 165.3
C 15 198 3885466 25486.81 554 549 152.4
C 1 241 3225675 21158.28 554 549 152.4
C 15 224 2408492 15797.19 554 549 152.4
D 15 125 10495544 59259.41 618 588 177.1
D 2 37 364318 2053.79 618 588 177.1
D 11 176 292160 1646.35 618 588 177.1

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