ASTROSAT CZTI

Data Quality Report

Orbit 30066

Creation date: 2024-06-27T20:10:31.471062
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_071T07_9000004322_30066cztM0_level2.evt modeM0/AS1A10_071T07_9000004322_30066cztM0_level2_quad_clean.evt
Size (bytes)529,398,72073,051,200
Size504.9 MB 69.7 MB
Events in quadrant A3,422,781456,961
Events in quadrant B5,103,959454,775
Events in quadrant C3,466,423429,738
Events in quadrant D3,607,326425,302

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137032
B0195382
C0139002
D0143702

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0150
C0150
D0150

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63771241.944488%
B63771993.120590%
C63771862.916732%
D63771392.179708%

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 7517 6378 2 2 0.03% 0.03%
B 7517 6378 0 0 0.00% 0.00%
C 7517 6378 0 0 0.00% 0.00%
D 7517 6378 53 53 0.71% 0.83%

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 8 192 24266 134.56 882 868 173.9
A 13 254 10774 56.97 882 868 173.9
A 3 137 8446 43.58 882 868 173.9
B 6 159 1694214 10257.25 863 842 165.1
B 12 111 20193 117.21 863 842 165.1
B 11 111 18649 107.86 863 842 165.1
C 14 238 164233 851.71 825 832 191.8
C 14 254 40668 207.64 825 832 191.8
C 3 233 18960 94.49 825 832 191.8
D 2 250 157288 786.15 833 815 199.0
D 13 104 115723 577.32 833 815 199.0
D 8 195 103307 514.94 833 815 199.0

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