ASTROSAT CZTI

Data Quality Report

Orbit 14078

Creation date: 2024-06-27T16:50:04.960146
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_055T01_9000002076_14078cztM0_level2.evt modeM0/AS1G08_055T01_9000002076_14078cztM0_level2_quad_clean.evt
Size (bytes)475,459,20099,665,280
Size453.4 MB 95.0 MB
Events in quadrant A3,523,910649,459
Events in quadrant B3,425,003653,906
Events in quadrant C3,124,575636,639
Events in quadrant D3,876,185616,723

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0145302
B0141801
C0136021
D0154891

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6630891.342383%
B6630931.402715%
C6630520.784314%
D66301151.734540%

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 7541 6632 15 15 0.20% 0.23%
B 7541 6632 14 14 0.19% 0.21%
C 7541 6632 0 0 0.00% 0.00%
D 7541 6632 43 43 0.57% 0.65%

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 207255 1280.61 803 786 161.2
A 12 189 116922 720.33 803 786 161.2
A 15 222 77749 477.36 803 786 161.2
B 10 16 55326 365.24 802 783 149.3
B 0 189 51263 338.03 802 783 149.3
B 4 80 36053 236.18 802 783 149.3
C 3 233 53557 292.56 782 785 180.4
C 0 207 19286 102.57 782 785 180.4
C 13 61 5775 27.66 782 785 180.4
D 8 195 359794 1918.2 774 754 187.2
D 1 52 169945 903.92 774 754 187.2
D 2 152 102790 545.14 774 754 187.2

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