ASTROSAT CZTI

Data Quality Report

Orbit 56043

Creation date: 2026-02-06T04:04:57.780588
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/AS1A14_083T03_9000006548_56043cztM0_level2.fits modeM0/AS1A14_083T03_9000006548_56043cztM0_level2_quad_clean.evt
Size (bytes)501,693,12090,192,960
Size478.5 MB 86.0 MB
Events in quadrant A3,496,858604,926
Events in quadrant B3,283,261666,067
Events in quadrant C3,573,369578,555
Events in quadrant D7,713,376429,014

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0152462
B0144272
C0155542
D0274512

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64851862.868157%
B6485991.526600%
C64851261.942945%
D6485152423.500386%

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 7580 6486 112 112 1.48% 1.73%
B 7580 6486 27 27 0.36% 0.42%
C 7580 6486 112 112 1.48% 1.73%
D 7580 6486 1323 1323 17.45% 20.40%

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 7 64 536072 3193.74 676 660 167.6
A 4 249 239447 1424.37 676 660 167.6
A 4 3 44299 260.31 676 660 167.6
B 0 213 160844 1102.31 678 654 145.3
B 10 247 103294 706.29 678 654 145.3
B 5 185 96250 657.82 678 654 145.3
C 15 147 480292 2694.58 650 646 178.0
C 12 252 134372 751.25 650 646 178.0
C 6 223 110163 615.25 650 646 178.0
D 11 129 4858300 29018.38 582 555 167.4
D 2 249 232430 1385.14 582 555 167.4
D 6 239 86036 510.63 582 555 167.4

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