ASTROSAT CZTI

Data Quality Report

Orbit 22532

Creation date: 2024-06-27T18:42:25.873545
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_049T01_9000003344_22532cztM0_level2.evt modeM0/AS1A07_049T01_9000003344_22532cztM0_level2_quad_clean.evt
Size (bytes)412,067,52098,078,400
Size393.0 MB 93.5 MB
Events in quadrant A2,925,180649,581
Events in quadrant B3,047,271656,260
Events in quadrant C2,962,018620,502
Events in quadrant D3,124,705612,571

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0127711
B0130282
C0127931
D0132871

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6178641.035934%
B6178701.133053%
C6178851.375850%
D6178540.874069%

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 7158 6178 0 0 0.00% 0.00%
B 7158 6178 2 2 0.03% 0.03%
C 7158 6178 4 4 0.06% 0.06%
D 7158 6178 9 9 0.13% 0.15%

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 9712 58.85 758 742 152.4
A 0 226 6763 39.5 758 742 152.4
A 3 137 6382 37.0 758 742 152.4
B 15 33 83748 584.3 749 730 142.1
B 12 111 17350 116.98 749 730 142.1
B 11 111 15559 104.37 749 730 142.1
C 14 238 114906 678.47 720 722 168.3
C 10 22 34666 201.69 720 722 168.3
C 13 61 5030 25.6 720 722 168.3
D 1 52 161663 895.58 734 710 179.7
D 12 227 93487 516.23 734 710 179.7
D 5 32 28590 155.13 734 710 179.7

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