ASTROSAT CZTI

Data Quality Report

Orbit 09106

Creation date: 2024-06-27T15:41:11.987719
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/AS1A03_120T01_9000001266_09106cztM0_level2.evt modeM0/AS1A03_120T01_9000001266_09106cztM0_level2_quad_clean.evt
Size (bytes)302,048,64044,475,840
Size288.1 MB 42.4 MB
Events in quadrant A2,060,725274,325
Events in quadrant B1,852,259278,023
Events in quadrant C1,740,543268,572
Events in quadrant D3,228,241250,233

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A085701
B079531
C078761
D0122531

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0800
B0800
C0800
D0800

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3894581.489471%
B3894310.796097%
C3894240.616333%
D38942185.598356%

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 5164 3894 19 19 0.37% 0.49%
B 5164 3894 0 0 0.00% 0.00%
C 5164 3894 0 0 0.00% 0.00%
D 5164 3894 165 165 3.20% 4.24%

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 5 244736 2581.23 464 454 94.6
A 1 162 12353 125.73 464 454 94.6
A 15 174 11173 113.26 464 454 94.6
B 0 219 17215 188.97 467 457 88.7
B 0 214 14657 160.13 467 457 88.7
B 12 111 9537 102.39 467 457 88.7
C 13 61 3346 28.37 445 447 102.2
C 8 222 1323 8.57 445 447 102.2
C 7 159 1163 7.01 445 447 102.2
D 1 52 1454699 13502.28 438 426 107.7
D 7 71 34650 317.75 438 426 107.7
D 12 233 27310 249.61 438 426 107.7

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