ASTROSAT CZTI

Data Quality Report

Orbit 19534

Creation date: 2024-06-27T18:03:51.413356
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/AS1T03_056T01_9000002900_19534cztM0_level2.evt modeM0/AS1T03_056T01_9000002900_19534cztM0_level2_quad_clean.evt
Size (bytes)431,182,08072,264,960
Size411.2 MB 68.9 MB
Events in quadrant A2,795,732453,320
Events in quadrant B3,013,689456,284
Events in quadrant C3,019,831434,982
Events in quadrant D3,827,516431,027

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0121481
B0127721
C0126471
D0154151

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A59031111.880400%
B59041292.184959%
C59041803.048780%
D59044066.876694%

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 6242 5903 0 0 0.00% 0.00%
B 6243 5904 8 8 0.13% 0.14%
C 6243 5904 6 6 0.10% 0.10%
D 6243 5904 251 251 4.02% 4.25%

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 12 16 10880 68.86 720 703 147.8
A 13 254 7546 46.3 720 703 147.8
A 12 194 6913 42.02 720 703 147.8
B 0 190 86487 611.24 713 695 140.4
B 7 220 30053 209.17 713 695 140.4
B 6 36 23381 161.63 713 695 140.4
C 3 233 228997 1416.89 682 685 161.1
C 14 238 107059 660.15 682 685 161.1
C 10 223 14732 87.17 682 685 161.1
D 12 218 561617 3382.03 676 656 165.9
D 12 233 499907 3009.98 676 656 165.9
D 10 34 65300 389.74 676 656 165.9

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