ASTROSAT CZTI

Data Quality Report

Orbit 14189

Creation date: 2024-06-27T16:51:28.424763
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/AS1A04_229T01_9000002096_14189cztM0_level2.evt modeM0/AS1A04_229T01_9000002096_14189cztM0_level2_quad_clean.evt
Size (bytes)532,987,20098,280,000
Size508.3 MB 93.7 MB
Events in quadrant A3,642,591623,812
Events in quadrant B3,843,787651,668
Events in quadrant C3,797,917601,520
Events in quadrant D4,346,611575,651

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D040

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0157633
B0162212
C0158262
D0177762

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7527570.757274%
B7527991.315265%
C7527440.584562%
D75271682.231965%

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 7803 7529 1 1 0.01% 0.01%
B 7803 7529 5 5 0.06% 0.07%
C 7803 7529 2 2 0.03% 0.03%
D 7803 7529 110 110 1.41% 1.46%

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 37983 196.87 924 904 188.3
A 12 189 18673 94.34 924 904 188.3
A 12 96 13464 66.69 924 904 188.3
B 0 219 76498 426.87 935 915 177.1
B 0 189 29756 162.89 935 915 177.1
B 4 142 28229 154.26 935 915 177.1
C 3 233 290431 1407.83 894 899 205.7
C 0 207 22469 104.88 894 899 205.7
C 13 61 6490 27.19 894 899 205.7
D 10 172 273172 1279.04 883 862 212.9
D 8 195 239915 1122.84 883 862 212.9
D 12 110 144470 674.53 883 862 212.9

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