ASTROSAT CZTI

Data Quality Report

Orbit 59314

Creation date: 2026-09-14T03:09:18.709570
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_021T06_9000006606_59314cztM0_level2.fits modeM0/AS1A14_021T06_9000006606_59314cztM0_level2_quad_clean.evt
Size (bytes)620,619,84087,209,280
Size591.9 MB 83.2 MB
Events in quadrant A4,541,392571,989
Events in quadrant B4,801,041616,324
Events in quadrant C2,958,354609,358
Events in quadrant D10,177,697397,891

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0183031
B0188501
C0136861
D0347081

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A637366810.481720%
B637379612.490193%
C6373240.376589%
D6373221434.740311%

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 7362 6373 663 663 9.01% 10.40%
B 7362 6373 666 666 9.05% 10.45%
C 7362 6373 7 7 0.10% 0.11%
D 7362 6372 2360 2360 32.06% 37.04%

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 15 233 1854456 11689.46 636 619 158.6
A 10 0 126059 790.97 636 619 158.6
A 13 248 40917 254.1 636 619 158.6
B 4 236 1948483 14495.81 642 620 134.4
B 5 236 81355 600.82 642 620 134.4
B 4 171 67912 500.78 642 620 134.4
C 9 38 193928 1047.48 669 661 184.5
C 4 5 41038 218.84 669 661 184.5
C 6 12 33256 176.66 669 661 184.5
D 12 110 7095555 41664.08 590 563 170.3
D 11 129 536824 3149.1 590 563 170.3
D 12 2 101114 590.47 590 563 170.3

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