ASTROSAT CZTI

Data Quality Report

Orbit 30300

Creation date: 2024-06-27T20:13:23.847126
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/AS1A10_071T17_9000004352_30300cztM0_level2.evt modeM0/AS1A10_071T17_9000004352_30300cztM0_level2_quad_clean.evt
Size (bytes)561,487,68084,113,280
Size535.5 MB 80.2 MB
Events in quadrant A3,517,060519,510
Events in quadrant B5,606,398517,873
Events in quadrant C3,717,613501,573
Events in quadrant D3,667,236498,167

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B050
C050
D050

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0151362
B0224012
C0155402
D0157262

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7325640.873720%
B73251662.266212%
C73251962.675768%
D7325370.505119%

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 7735 7327 0 0 0.00% 0.00%
B 7735 7327 30 30 0.39% 0.41%
C 7735 7327 0 0 0.00% 0.00%
D 7735 7327 4 4 0.05% 0.05%

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 8 192 19831 103.78 905 886 182.5
A 13 254 12740 64.94 905 886 182.5
A 3 137 9602 47.75 905 886 182.5
B 6 159 1962641 11221.21 892 868 174.8
B 6 36 110035 624.43 892 868 174.8
B 0 190 29147 161.75 892 868 174.8
C 14 238 187705 906.32 866 870 206.1
C 14 254 69075 330.85 866 870 206.1
C 3 233 57884 276.57 866 870 206.1
D 8 195 124149 571.12 870 854 215.9
D 13 104 79871 366.02 870 854 215.9
D 1 52 64488 294.76 870 854 215.9

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