ASTROSAT CZTI

Data Quality Report

Orbit 25706

Creation date: 2024-06-27T19:20:36.500383
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/AS1A09_008T03_9000003746_25706cztM0_level2.evt modeM0/AS1A09_008T03_9000003746_25706cztM0_level2_quad_clean.evt
Size (bytes)462,997,44095,160,960
Size441.5 MB 90.8 MB
Events in quadrant A3,200,792635,260
Events in quadrant B3,321,277650,260
Events in quadrant C3,495,444594,694
Events in quadrant D3,591,714577,200

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0180
C0180
D0180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132790
B0136200
C0142150
D0145620

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6078400.658111%
B6078530.871997%
C60781732.846331%
D60781161.908523%

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 7423 6079 0 0 0.00% 0.00%
B 7423 6079 0 0 0.00% 0.00%
C 7423 6078 54 54 0.73% 0.89%
D 7423 6079 78 78 1.05% 1.28%

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 0 13 10598 58.97 827 813 165.9
A 13 254 8728 47.7 827 813 165.9
A 0 226 7160 38.25 827 813 165.9
B 0 190 36009 229.5 823 807 153.4
B 0 219 28630 181.39 823 807 153.4
B 4 171 26131 165.1 823 807 153.4
C 3 233 355904 1969.74 773 781 180.3
C 14 238 126580 697.76 773 781 180.3
C 13 61 5524 26.31 773 781 180.3
D 7 80 357768 1874.72 779 757 190.4
D 8 195 112832 588.52 779 757 190.4
D 2 244 80667 419.62 779 757 190.4

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