ASTROSAT CZTI

Data Quality Report

Orbit 03190

Creation date: 2024-06-27T14:25:43.830477
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/AS1G05_127T01_9000000436_03190cztM0_level2.evt modeM0/AS1G05_127T01_9000000436_03190cztM0_level2_quad_clean.evt
Size (bytes)615,919,68075,614,400
Size587.4 MB 72.1 MB
Events in quadrant A3,560,715448,126
Events in quadrant B3,790,154447,374
Events in quadrant C6,926,389432,890
Events in quadrant D3,852,860424,084

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01560
B01560
C01560
D01560

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0158682
B0162831
C0258291
D0168971

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A77211161.502396%
B77211301.683720%
C77216388.263178%
D77211792.318353%

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 8016 7721 0 0 0.00% 0.00%
B 8016 7721 12 12 0.15% 0.16%
C 8016 7721 448 448 5.59% 5.80%
D 8016 7721 85 85 1.06% 1.10%

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 0 226 10280 49.3 918 897 190.3
A 12 194 9957 47.6 918 897 190.3
A 5 113 9319 44.25 918 897 190.3
B 4 80 78961 434.49 928 911 179.6
B 4 81 45161 246.33 928 911 179.6
B 15 85 27155 146.1 928 911 179.6
C 12 206 3252622 16115.37 861 865 201.8
C 14 223 138726 683.22 861 865 201.8
C 1 192 49754 242.29 861 865 201.8
D 13 223 203041 935.98 884 854 216.0
D 5 233 141961 653.22 884 854 216.0
D 13 120 42102 190.95 884 854 216.0

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