ASTROSAT CZTI

Data Quality Report

Orbit 03314

Creation date: 2024-06-27T14:27:28.152572
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/AS1G05_241T02_9000000448_03314cztM0_level2.evt modeM0/AS1G05_241T02_9000000448_03314cztM0_level2_quad_clean.evt
Size (bytes)451,255,68082,091,520
Size430.4 MB 78.3 MB
Events in quadrant A3,042,163503,110
Events in quadrant B3,934,227517,602
Events in quadrant C3,138,671518,177
Events in quadrant D3,105,235489,392

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135643
B0159222
C0137582
D0139722

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6560410.625000%
B65601281.951220%
C6560370.564024%
D6560430.655488%

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 7770 6561 1 1 0.01% 0.02%
B 7770 6561 6 6 0.08% 0.09%
C 7770 6561 1 1 0.01% 0.02%
D 7770 6561 28 28 0.36% 0.43%

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 8 15 18416 109.0 783 767 161.9
A 0 226 8576 48.23 783 767 161.9
A 12 194 8345 46.8 783 767 161.9
B 15 204 724607 4697.19 797 779 154.1
B 14 167 56485 361.5 797 779 154.1
B 2 249 26825 169.02 797 779 154.1
C 6 80 66041 355.04 779 783 183.8
C 1 16 15108 77.94 779 783 183.8
C 12 4 10427 52.47 779 783 183.8
D 13 223 93612 502.87 764 744 184.7
D 14 34 31681 167.52 764 744 184.7
D 5 233 21725 113.61 764 744 184.7

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