ASTROSAT CZTI

Data Quality Report

Orbit 54332

Creation date: 2025-10-13T22:36:42.040622
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_126T15_9000006516_54332cztM0_level2.fits modeM0/AS1A14_126T15_9000006516_54332cztM0_level2_quad_clean.evt
Size (bytes)641,079,36097,669,440
Size611.4 MB 93.1 MB
Events in quadrant A3,362,654701,986
Events in quadrant B3,410,475741,916
Events in quadrant C5,061,158596,068
Events in quadrant D11,323,371403,722

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0153830
B0154700
C0206230
D0386500

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A737670.094902%
B7376300.406725%
C73767099.612256%
D7376281338.137202%

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 7376 7376 2 2 0.03% 0.03%
B 7376 7376 15 15 0.20% 0.20%
C 7376 7376 655 655 8.88% 8.88%
D 7376 7376 2736 2736 37.09% 37.09%

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 5 243 164798 856.18 772 751 191.6
A 4 78 48031 246.76 772 751 191.6
A 11 3 37908 193.93 772 751 191.6
B 5 172 90273 553.78 756 727 161.7
B 4 21 63172 386.18 756 727 161.7
B 5 185 48784 297.2 756 727 161.7
C 1 241 1838856 9544.19 707 699 192.6
C 14 254 159795 826.07 707 699 192.6
C 15 147 83637 430.64 707 699 192.6
D 15 108 8219614 47915.36 599 572 171.5
D 8 176 360669 2099.29 599 572 171.5
D 3 12 97327 564.06 599 572 171.5

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