ASTROSAT CZTI

Data Quality Report

Orbit 10609

Creation date: 2024-06-27T16:01:26.318391
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/AS1T01_191T01_9000001536_10609cztM0_level2.evt modeM0/AS1T01_191T01_9000001536_10609cztM0_level2_quad_clean.evt
Size (bytes)392,316,48077,160,960
Size374.1 MB 73.6 MB
Events in quadrant A2,550,612505,772
Events in quadrant B3,717,161495,277
Events in quadrant C2,441,510503,792
Events in quadrant D2,822,388471,438

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01102
B01102
C01102
D01100

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010978244
B014778431
C010758267
D011968253

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5142120.233372%
B51023236.330851%
C513040.077973%
D5138200.389257%

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 6653 5214 0 0 0.00% 0.00%
B 6653 5188 192 192 2.89% 3.70%
C 6653 5217 0 0 0.00% 0.00%
D 6653 5216 15 15 0.23% 0.29%

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 1 162 24306 179.56 644 635 131.8
A 13 251 21883 161.18 644 635 131.8
A 1 178 7789 54.27 644 635 131.8
B 4 239 1013014 8445.6 634 622 119.9
B 0 219 134541 1117.18 634 622 119.9
B 0 214 35001 286.8 634 622 119.9
C 13 61 4715 28.24 623 632 144.6
C 14 234 4120 24.12 623 632 144.6
C 8 128 2799 14.99 623 632 144.6
D 2 16 201410 1343.64 611 595 149.5
D 8 195 103712 689.95 611 595 149.5
D 1 52 90032 598.42 611 595 149.5

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