ASTROSAT CZTI

Data Quality Report

Orbit 19343

Creation date: 2024-06-27T18:01:38.491679
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/AS1A05_204T01_9000002856_19343cztM0_level2.evt modeM0/AS1A05_204T01_9000002856_19343cztM0_level2_quad_clean.evt
Size (bytes)610,724,160104,302,080
Size582.4 MB 99.5 MB
Events in quadrant A3,587,012678,744
Events in quadrant B3,781,592681,360
Events in quadrant C3,688,417654,703
Events in quadrant D6,916,534607,777

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0159282
B0163382
C0159992
D0258262

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01560
B01560
C01560
D01560

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7704510.661994%
B77051141.479559%
C77051201.557430%
D770582710.733290%

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 7949 7706 2 2 0.03% 0.03%
B 7950 7707 20 20 0.25% 0.26%
C 7950 7707 0 0 0.00% 0.00%
D 7950 7707 732 732 9.21% 9.50%

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 4 2 27697 143.46 914 892 186.8
A 11 29 23548 121.26 914 892 186.8
A 5 16 8207 39.15 914 892 186.8
B 7 220 73852 419.3 910 885 174.0
B 0 230 28923 161.12 910 885 174.0
B 3 64 25894 143.71 910 885 174.0
C 14 238 136427 652.8 883 888 207.6
C 3 233 88729 423.07 883 888 207.6
C 8 128 13100 58.82 883 888 207.6
D 11 176 1313046 6292.82 858 833 208.5
D 10 66 899041 4307.42 858 833 208.5
D 1 52 751928 3601.93 858 833 208.5

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