ASTROSAT CZTI

Data Quality Report

Orbit 14086

Creation date: 2024-06-27T16:50:12.222182
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/AS1G08_022T01_9000002078_14086cztM0_level2.evt modeM0/AS1G08_022T01_9000002078_14086cztM0_level2_quad_clean.evt
Size (bytes)527,627,520104,397,120
Size503.2 MB 99.6 MB
Events in quadrant A3,457,273700,548
Events in quadrant B5,382,941668,685
Events in quadrant C3,157,605671,127
Events in quadrant D3,520,412647,718

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0147443
B0204642
C0139652
D0150902

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6794751.103915%
B67946479.523109%
C6794170.250221%
D6794430.632911%

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 7590 6796 20 20 0.26% 0.29%
B 7590 6796 389 389 5.13% 5.72%
C 7590 6796 0 0 0.00% 0.00%
D 7590 6796 26 26 0.34% 0.38%

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 9 143 152734 903.07 827 810 168.2
A 12 189 56362 330.22 827 810 168.2
A 12 96 43922 256.27 827 810 168.2
B 10 16 2071670 13689.95 799 778 151.3
B 0 189 60517 394.91 799 778 151.3
B 0 219 33990 219.55 799 778 151.3
C 3 233 33625 177.18 799 803 185.2
C 0 207 7757 37.54 799 803 185.2
C 13 61 5680 26.33 799 803 185.2
D 1 52 266563 1401.15 788 769 189.7
D 8 195 98287 514.07 788 769 189.7
D 2 152 44570 230.9 788 769 189.7

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