ASTROSAT CZTI

Data Quality Report

Orbit 07742

Creation date: 2024-06-27T15:23:23.486797
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/AS1G06_064T01_9000001066_07742cztM0_level2.evt modeM0/AS1G06_064T01_9000001066_07742cztM0_level2_quad_clean.evt
Size (bytes)351,725,76073,206,720
Size335.4 MB 69.8 MB
Events in quadrant A2,529,241460,180
Events in quadrant B2,649,950473,384
Events in quadrant C2,589,837464,736
Events in quadrant D2,515,308440,661

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110582
B0113271
C0111351
D0111891

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5395140.259500%
B5395290.537535%
C539540.074143%
D539570.129750%

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 6665 5396 2 2 0.03% 0.04%
B 6665 5396 9 9 0.14% 0.17%
C 6665 5396 0 0 0.00% 0.00%
D 6665 5396 6 6 0.09% 0.11%

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 15 234 10233 72.52 651 637 132.3
A 0 52 6825 46.76 651 637 132.3
A 0 226 6636 45.33 651 637 132.3
B 4 81 46848 372.42 656 641 124.1
B 15 204 26416 207.74 656 641 124.1
B 4 239 17080 132.5 656 641 124.1
C 9 68 41323 273.08 646 651 148.9
C 9 243 22908 149.44 646 651 148.9
C 13 61 4983 29.09 646 651 148.9
D 13 104 42940 269.76 642 623 156.9
D 2 152 24415 151.67 642 623 156.9
D 2 14 17952 110.47 642 623 156.9

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