ASTROSAT CZTI

Data Quality Report

Orbit 17652

Creation date: 2024-06-27T17:39:08.533045
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/AS1A05_118T02_9000002612_17652cztM0_level2.evt modeM0/AS1A05_118T02_9000002612_17652cztM0_level2_quad_clean.evt
Size (bytes)520,395,84072,887,040
Size496.3 MB 69.5 MB
Events in quadrant A3,247,101443,253
Events in quadrant B3,362,801444,645
Events in quadrant C3,535,132429,108
Events in quadrant D5,153,182415,714

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141603
B0143852
C0149022
D0200942

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6805781.146216%
B6806991.454599%
C68061532.248016%
D68065998.801058%

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 7846 6807 0 0 0.00% 0.00%
B 7847 6807 0 0 0.00% 0.00%
C 7847 6806 0 0 0.00% 0.00%
D 7847 6807 410 410 5.22% 6.02%

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 14 237 50710 295.84 832 814 168.7
A 0 226 7203 37.88 832 814 168.7
A 3 137 6498 33.7 832 814 168.7
B 0 230 36388 220.46 826 805 161.4
B 0 189 31201 188.32 826 805 161.4
B 12 111 19073 113.18 826 805 161.4
C 3 233 295377 1573.62 794 798 187.2
C 14 238 121679 645.74 794 798 187.2
C 8 128 11406 56.67 794 798 187.2
D 1 52 1831369 9538.99 777 751 191.9
D 13 189 293425 1525.07 777 751 191.9
D 12 233 44567 228.32 777 751 191.9

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