ASTROSAT CZTI

Data Quality Report

Orbit 24163

Creation date: 2024-06-27T19:02:58.459363
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/AS1A07_067T01_9000003578_24163cztM0_level2.evt modeM0/AS1A07_067T01_9000003578_24163cztM0_level2_quad_clean.evt
Size (bytes)536,235,84082,509,120
Size511.4 MB 78.7 MB
Events in quadrant A3,733,134496,935
Events in quadrant B3,805,570503,163
Events in quadrant C4,295,000486,640
Events in quadrant D3,888,333481,171

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B030
C030
D030

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01560
B01560
C01560
D01560

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0158863
B0160733
C0175683
D0164033

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A76271982.596040%
B76262373.107789%
C76263975.205875%
D76261902.491477%

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 7817 7630 0 0 0.00% 0.00%
B 7816 7629 5 5 0.06% 0.07%
C 7816 7627 92 92 1.18% 1.21%
D 7816 7630 7 7 0.09% 0.09%

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 13 254 12770 60.67 965 945 194.9
A 3 137 8685 39.71 965 945 194.9
A 0 226 8518 38.86 965 945 194.9
B 4 52 32413 170.54 953 928 184.6
B 0 190 22413 116.38 953 928 184.6
B 12 111 22304 115.79 953 928 184.6
C 2 16 549136 2586.69 908 913 211.9
C 14 238 142859 669.75 908 913 211.9
C 0 207 42209 194.85 908 913 211.9
D 8 195 187151 814.99 938 907 228.5
D 7 238 113470 492.57 938 907 228.5
D 2 234 35428 151.06 938 907 228.5

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