ASTROSAT CZTI

Data Quality Report

Orbit 56084

Creation date: 2026-02-09T21:28:33.113835
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_56084cztM0_level2.fits modeM0/AS1A14_083T03_9000006548_56084cztM0_level2_quad_clean.evt
Size (bytes)382,383,36095,613,120
Size364.7 MB 91.2 MB
Events in quadrant A3,619,651622,022
Events in quadrant B3,011,231674,841
Events in quadrant C3,097,441599,407
Events in quadrant D3,928,527552,872

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0151075
B0134441
C0139281
D0159751

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63931432.236822%
B6394691.079137%
C6394590.922740%
D63941802.815139%

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 7513 6394 92 92 1.22% 1.44%
B 7514 6395 5 5 0.07% 0.08%
C 7514 6395 23 23 0.31% 0.36%
D 7514 6395 148 148 1.97% 2.31%

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 15 32 536477 3146.78 694 677 170.3
A 7 64 176638 1033.43 694 677 170.3
A 12 115 64241 373.31 694 677 170.3
B 0 231 67784 459.16 684 660 146.2
B 0 213 66671 451.55 684 660 146.2
B 2 249 56482 381.85 684 660 146.2
C 12 252 258225 1402.3 666 655 183.7
C 15 165 121224 656.42 666 655 183.7
C 15 199 59460 320.15 666 655 183.7
D 2 249 488049 2585.4 663 633 188.5
D 8 245 320784 1698.18 663 633 188.5
D 8 240 126877 669.64 663 633 188.5

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