ASTROSAT CZTI

Data Quality Report

Orbit 59143

Creation date: 2026-09-02T15:23:21.725962
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/AS1T05_264T01_9000006602_59143cztM0_level2.fits modeM0/AS1T05_264T01_9000006602_59143cztM0_level2_quad_clean.evt
Size (bytes)813,113,28092,540,160
Size775.4 MB 88.3 MB
Events in quadrant A3,464,473721,680
Events in quadrant B4,013,357790,460
Events in quadrant C3,513,987711,548
Events in quadrant D18,509,98744,604

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0159680
B0171640
C0160840
D0602540

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7669200.260790%
B76691151.499544%
C7669180.234711%
D7669720593.949667%

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 7669 7669 8 8 0.10% 0.10%
B 7669 7669 35 35 0.46% 0.46%
C 7669 7669 19 19 0.25% 0.25%
D 7669 7669 6791 6791 88.55% 88.55%

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 10 251 69106 324.82 852 830 210.2
A 8 206 28894 133.51 852 830 210.2
A 15 233 16902 76.46 852 830 210.2
B 4 236 234306 1273.3 847 815 183.4
B 5 185 140718 762.94 847 815 183.4
B 4 201 137849 747.29 847 815 183.4
C 14 254 118418 513.79 835 829 228.9
C 12 252 85585 370.33 835 829 228.9
C 14 96 19348 80.92 835 829 228.9
D 12 1 15631023 286782.09 187 177 54.5
D 12 110 2018967 37039.12 187 177 54.5
D 6 239 41114 751.08 187 177 54.5

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

TCT plots

Parameter TCT0 TCT_healed
Tct