ASTROSAT CZTI

Data Quality Report

Orbit 22163

Creation date: 2024-06-27T18:37:39.039347
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/AS1T03_145T01_9000003278_22163cztM0_level2.evt modeM0/AS1T03_145T01_9000003278_22163cztM0_level2_quad_clean.evt
Size (bytes)685,013,76088,925,760
Size653.3 MB 84.8 MB
Events in quadrant A3,406,717618,190
Events in quadrant B3,411,447628,173
Events in quadrant C3,387,800598,128
Events in quadrant D10,079,801374,588

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142712
B0142582
C0142752
D0344502

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0200
C0200
D0200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67901452.135493%
B67901762.592047%
C67901672.459499%
D6789287242.303727%

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 7630 6791 0 0 0.00% 0.00%
B 7630 6791 0 0 0.00% 0.00%
C 7630 6791 0 0 0.00% 0.00%
D 7629 6790 2512 2512 32.93% 37.00%

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 3 1 37468 209.33 874 858 174.9
A 13 254 11336 59.91 874 858 174.9
A 0 226 7519 38.09 874 858 174.9
B 12 111 20134 117.09 867 846 164.7
B 11 111 17929 103.7 867 846 164.7
B 0 197 17699 102.31 867 846 164.7
C 14 238 131868 673.97 832 837 194.4
C 0 10 6860 30.98 832 837 194.4
C 13 61 5799 25.52 832 837 194.4
D 1 52 7545781 49249.33 637 619 153.2
D 13 104 74630 483.09 637 619 153.2
D 2 136 23333 148.26 637 619 153.2

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