ASTROSAT CZTI

Data Quality Report

Orbit 09388

Creation date: 2024-06-27T15:45:24.486734
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/AS1G07_069T01_9000001332_09388cztM0_level2.evt modeM0/AS1G07_069T01_9000001332_09388cztM0_level2_quad_clean.evt
Size (bytes)2,139,724,800289,206,720
Size2.0 GB 275.8 MB
Events in quadrant A13,154,8721,862,883
Events in quadrant B11,338,0571,889,597
Events in quadrant C10,686,3291,890,851
Events in quadrant D27,994,3251,453,086

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A05485283
B04973684
C04917794
D0100852889

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A04940
B04942
C04940
D04942

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0300
C0300
D0300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A241474181.731064%
B241503801.573499%
C241422270.940270%
D24072711929.573779%

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 27200 24186 19 19 0.07% 0.08%
B 27200 24187 1 1 0.00% 0.00%
C 27200 24186 0 0 0.00% 0.00%
D 27200 24164 6468 6468 23.78% 26.77%

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 1820165 3215.44 2790 2719 565.2
A 1 162 209774 366.32 2790 2719 565.2
A 4 2 100704 173.35 2790 2719 565.2
B 0 214 157905 287.92 2815 2739 538.9
B 0 219 115513 209.26 2815 2739 538.9
B 0 187 90948 163.68 2815 2739 538.9
C 13 61 20304 28.03 2731 2739 626.7
C 10 22 18387 24.97 2731 2739 626.7
C 14 234 10621 12.58 2731 2739 626.7
D 1 52 18423801 31760.15 2336 2281 580.0
D 13 104 145225 246.45 2336 2281 580.0
D 12 233 109857 185.47 2336 2281 580.0

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