ASTROSAT CZTI

Data Quality Report

Orbit 02078

Creation date: 2024-06-27T14:13:53.200324
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/AS1P01_161T03_9000000320_02078cztM0_level2.evt modeM0/AS1P01_161T03_9000000320_02078cztM0_level2_quad_clean.evt
Size (bytes)485,216,64017,867,520
Size462.7 MB 17.0 MB
Events in quadrant A3,980,14589,400
Events in quadrant B3,740,63396,397
Events in quadrant C3,496,94495,272
Events in quadrant D3,320,15889,282

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0480
B0480
C0480
D0480

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134900
B0127700
C0120530
D0115530

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2355311.316348%
B235570.297240%
C2355120.509554%
D235550.212314%

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 2355 2355 589 589 25.01% 25.01%
B 2355 2355 415 415 17.62% 17.62%
C 2355 2355 307 307 13.04% 13.04%
D 2355 2355 210 210 8.92% 8.92%

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 0 199 489933 2158.19 912 918 226.6
A 10 2 2512 7.03 912 918 226.6
A 14 186 2099 5.21 912 918 226.6
B 0 198 42973 183.22 957 964 229.3
B 4 48 30739 129.86 957 964 229.3
B 5 68 25498 107.0 957 964 229.3
C 14 223 19398 73.12 889 925 252.6
C 10 65 6960 23.89 889 925 252.6
C -1 -1 -1 -1.0 889 925 252.6
D 2 32 76416 279.19 854 884 270.5
D 13 88 46356 168.08 854 884 270.5
D 10 85 5421 16.77 854 884 270.5

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