ASTROSAT CZTI

Data Quality Report

Orbit 10664

Creation date: 2024-06-27T16:02:09.775005
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/AS1A03_097T01_9000001540_10664cztM0_level2.evt modeM0/AS1A03_097T01_9000001540_10664cztM0_level2_quad_clean.evt
Size (bytes)491,751,36088,660,800
Size469.0 MB 84.6 MB
Events in quadrant A2,702,957586,573
Events in quadrant B3,872,613575,625
Events in quadrant C2,774,676579,935
Events in quadrant D5,150,654538,572

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120212
B0154141
C0122881
D0191791

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5779711.228586%
B57792884.983561%
C5779611.055546%
D57792013.478110%

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 6844 5779 0 0 0.00% 0.00%
B 6844 5780 148 148 2.16% 2.56%
C 6844 5780 3 3 0.04% 0.05%
D 6844 5779 124 124 1.81% 2.15%

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 3 1 15706 106.86 688 674 140.7
A 1 162 13944 94.33 688 674 140.7
A 4 2 8765 57.52 688 674 140.7
B 4 239 1072989 8355.76 676 662 128.3
B 15 204 51248 394.17 676 662 128.3
B 0 219 41782 320.41 676 662 128.3
C 4 254 102077 656.06 669 673 154.6
C 4 175 47601 303.61 669 673 154.6
C 14 234 9091 54.46 669 673 154.6
D 1 20 955389 5956.93 663 644 160.3
D 2 16 558584 3481.15 663 644 160.3
D 8 195 503889 3139.89 663 644 160.3

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