ASTROSAT CZTI

Data Quality Report

Orbit 05752

Creation date: 2024-06-27T14:58:43.004146
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/AS1A02_149T01_9000000740_05752cztM0_level2.evt modeM0/AS1A02_149T01_9000000740_05752cztM0_level2_quad_clean.evt
Size (bytes)347,935,68056,969,280
Size331.8 MB 54.3 MB
Events in quadrant A2,452,365335,869
Events in quadrant B2,646,365335,159
Events in quadrant C2,449,089337,496
Events in quadrant D2,608,489325,196

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01142
B01142
C01140
D01140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01138365
B01165271
C01135146
D01162958

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5582120.214977%
B5578250.448189%
C559110.017886%
D558670.125313%

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 5614 5610 0 0 0.00% 0.00%
B 5614 5612 11 11 0.20% 0.20%
C 5614 5613 0 0 0.00% 0.00%
D 5614 5610 6 6 0.11% 0.11%

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 12 194 6199 42.5 635 621 131.3
A 0 226 6010 41.06 635 621 131.3
A 0 50 4352 28.43 635 621 131.3
B 4 81 55648 441.93 641 625 124.5
B 15 204 31125 244.97 641 625 124.5
B 0 214 22101 172.49 641 625 124.5
C 8 128 12758 83.32 619 623 145.6
C 14 67 7607 47.95 619 623 145.6
C 8 112 6970 43.58 619 623 145.6
D 8 195 90193 584.86 619 599 153.2
D 2 14 58965 381.01 619 599 153.2
D 12 221 49574 319.71 619 599 153.2

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