ASTROSAT CZTI

Data Quality Report

Orbit 15230

Creation date: 2024-06-27T17:05:36.495236
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_105T01_9000002248_15230cztM0_level2.evt modeM0/AS1A04_105T01_9000002248_15230cztM0_level2_quad_clean.evt
Size (bytes)499,867,20087,586,560
Size476.7 MB 83.5 MB
Events in quadrant A3,983,446542,300
Events in quadrant B3,547,891559,143
Events in quadrant C3,652,573551,321
Events in quadrant D3,490,972523,489

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0163373
B0148482
C0150242
D0152922

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A68341752.560726%
B6834440.643840%
C6834240.351185%
D6834430.629207%

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 7510 6835 61 61 0.81% 0.89%
B 7510 6836 17 17 0.23% 0.25%
C 7510 6836 0 0 0.00% 0.00%
D 7510 6836 17 17 0.23% 0.25%

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 0 253 704458 4246.04 809 794 165.7
A 12 189 150732 904.75 809 794 165.7
A 9 143 10407 58.01 809 794 165.7
B 0 229 98417 626.78 819 798 155.7
B 0 189 69410 440.54 819 798 155.7
B 10 245 53475 338.22 819 798 155.7
C 3 233 556099 3040.15 789 793 182.7
C 7 247 9991 50.36 789 793 182.7
C 10 22 7416 36.26 789 793 182.7
D 2 16 327214 1694.27 785 759 192.7
D 2 33 65118 334.02 785 759 192.7
D 13 172 50003 255.57 785 759 192.7

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