ASTROSAT CZTI

Data Quality Report

Orbit 40317

Creation date: 2024-06-27T22:14:52.990032
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/AS1A12_056T02_9000005538_40317cztM0_level2.fits modeM0/AS1A12_056T02_9000005538_40317cztM0_level2_quad_clean.evt
Size (bytes)305,735,04092,805,120
Size291.6 MB 88.5 MB
Events in quadrant A3,214,562633,906
Events in quadrant B2,443,231656,406
Events in quadrant C2,489,074614,458
Events in quadrant D2,784,257558,546

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0127253
B0103142
C0102092
D0117502

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0340
B0340
C0340
D0350

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01000
B01000
C01000
D01000

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4954981.978199%
B4954120.242229%
C4954140.282600%
D4954691.392814%

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 7077 4955 84 84 1.19% 1.70%
B 7077 4955 6 6 0.08% 0.12%
C 7077 4955 8 8 0.11% 0.16%
D 7077 4955 66 66 0.93% 1.33%

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 83 457137 3843.0 581 571 118.8
A 13 248 367557 3088.99 581 571 118.8
A 12 189 89887 751.79 581 571 118.8
B 0 245 54935 489.54 583 570 111.1
B 5 255 41210 365.95 583 570 111.1
B 4 170 23435 205.89 583 570 111.1
C 15 214 214009 1619.29 565 571 131.8
C 0 10 38081 284.58 565 571 131.8
C 14 254 15542 113.58 565 571 131.8
D 12 79 189511 1388.83 556 543 136.1
D 12 227 161675 1184.25 556 543 136.1
D 9 19 90560 661.59 556 543 136.1

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