ASTROSAT CZTI

Data Quality Report

Orbit 32043

Creation date: 2024-06-27T20:35:46.932997
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/AS1T04_046T01_9000004680_32043cztM0_level2.evt modeM0/AS1T04_046T01_9000004680_32043cztM0_level2_quad_clean.evt
Size (bytes)548,614,08086,460,480
Size523.2 MB 82.5 MB
Events in quadrant A3,192,360552,813
Events in quadrant B5,301,729547,356
Events in quadrant C3,862,325528,632
Events in quadrant D3,809,255526,879

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136182
B0206012
C0155912
D0156292

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0160
C0160
D0160

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6634190.286403%
B66341221.839011%
C66341692.547483%
D6634330.497437%

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 7679 6634 0 0 0.00% 0.00%
B 7679 6635 46 46 0.60% 0.69%
C 7679 6634 50 50 0.65% 0.75%
D 7679 6635 18 18 0.23% 0.27%

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 14 238 14599 83.78 817 800 164.7
A 13 254 13045 74.34 817 800 164.7
A 13 6 12316 69.92 817 800 164.7
B 6 159 1870461 12156.51 808 788 153.8
B 5 172 158262 1023.89 808 788 153.8
B 0 245 36159 229.98 808 788 153.8
C 3 233 405455 2209.19 775 779 183.2
C 0 10 237946 1294.73 775 779 183.2
C 14 238 131352 712.82 775 779 183.2
D 8 195 698850 3738.03 784 764 186.8
D 2 250 72408 383.63 784 764 186.8
D 2 234 33147 173.4 784 764 186.8

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