ASTROSAT CZTI

Data Quality Report

Orbit 41710

Creation date: 2024-06-27T22:31:54.482358
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_077T12_9000005692_41710cztM0_level2.fits modeM0/AS1A12_077T12_9000005692_41710cztM0_level2_quad_clean.evt
Size (bytes)332,976,96090,547,200
Size317.6 MB 86.4 MB
Events in quadrant A2,901,180612,430
Events in quadrant B2,494,213626,047
Events in quadrant C2,962,358577,044
Events in quadrant D3,536,945539,005

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0310
C0310
D0310

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120662
B0113242
C0123852
D0144362

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01140
B01140
C01140
D01140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5529120.217037%
B5529160.289383%
C55291873.382167%
D55292224.015193%

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 7142 5530 5 5 0.07% 0.09%
B 7142 5530 9 9 0.13% 0.16%
C 7142 5530 183 183 2.56% 3.31%
D 7142 5530 227 227 3.18% 4.10%

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 534077 4273.43 603 590 124.8
A 15 223 15691 120.96 603 590 124.8
A 2 79 14556 111.87 603 590 124.8
B 5 255 50231 429.44 600 585 115.6
B 4 141 31439 266.89 600 585 115.6
B 0 245 30877 262.03 600 585 115.6
C 0 10 471404 3451.53 580 585 136.4
C 15 214 223589 1634.82 580 585 136.4
C 13 61 3852 23.95 580 585 136.4
D 2 249 686214 4790.23 579 561 143.1
D 13 249 364490 2542.54 579 561 143.1
D 12 6 88874 616.99 579 561 143.1

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