ASTROSAT CZTI

Data Quality Report

Orbit 44184

Creation date: 2024-06-27T23:00:18.123050
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/AS1A13_074T12_9000005960_44184cztM0_level2.fits modeM0/AS1A13_074T12_9000005960_44184cztM0_level2_quad_clean.evt
Size (bytes)665,049,60099,864,000
Size634.2 MB 95.2 MB
Events in quadrant A6,109,339723,219
Events in quadrant B6,288,397628,426
Events in quadrant C3,553,899726,999
Events in quadrant D8,181,274508,203

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0140
C0140
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0228722
B0229392
C0148912
D0287802

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62654206.703911%
B6265128820.558659%
C6264721.149425%
D6264163926.165390%

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 7510 6266 278 278 3.70% 4.44%
B 7510 6266 939 939 12.50% 14.99%
C 7509 6265 55 55 0.73% 0.88%
D 7509 6265 1533 1533 20.42% 24.47%

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 1606551 10654.31 725 711 150.7
A 15 223 1597626 10595.1 725 711 150.7
A 7 3 36829 239.63 725 711 150.7
B 0 200 2741459 21472.76 660 643 127.6
B 0 219 515303 4032.07 660 643 127.6
B 5 172 90432 703.45 660 643 127.6
C 3 233 311723 1866.32 712 716 166.6
C 14 254 310335 1857.99 712 716 166.6
C 4 254 34971 205.56 712 716 166.6
D 13 168 2698016 16709.62 628 607 161.4
D 1 52 1014949 6283.54 628 607 161.4
D 12 233 603135 3732.48 628 607 161.4

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