ASTROSAT CZTI

Data Quality Report

Orbit 29484

Creation date: 2024-06-27T20:04:34.245486
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/AS1A10_064T03_9000004246_29484cztM0_level2.evt modeM0/AS1A10_064T03_9000004246_29484cztM0_level2_quad_clean.evt
Size (bytes)754,401,600119,390,400
Size719.5 MB 113.9 MB
Events in quadrant A3,133,050854,548
Events in quadrant B3,202,745887,347
Events in quadrant C3,776,400838,781
Events in quadrant D12,323,238608,444

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130801
B0133101
C0155951
D0408184

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6104320.524246%
B6104470.769987%
C6104981.605505%
D6104333954.701835%

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 7389 6105 0 0 0.00% 0.00%
B 7389 6105 4 4 0.05% 0.07%
C 7389 6105 1 1 0.01% 0.02%
D 7389 6105 3110 3110 42.09% 50.94%

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 11721 69.07 807 794 158.2
A 11 29 10034 58.41 807 794 158.2
A 3 137 7116 39.96 807 794 158.2
B 0 190 23696 154.54 809 792 148.2
B 12 111 17113 110.12 809 792 148.2
B 11 111 15379 98.42 809 792 148.2
C 3 233 508070 2774.18 792 799 182.9
C 14 238 130080 707.02 792 799 182.9
C 7 247 37478 200.59 792 799 182.9
D 8 195 5985430 40676.74 634 619 147.1
D 1 52 2453773 16673.26 634 619 147.1
D 12 33 1131548 7686.54 634 619 147.1

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