ASTROSAT CZTI

Data Quality Report

Orbit 13358

Creation date: 2024-06-27T16:39:37.257721
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_082T01_9000001986_13358cztM0_level2.evt modeM0/AS1G08_082T01_9000001986_13358cztM0_level2_quad_clean.evt
Size (bytes)467,236,80087,782,400
Size445.6 MB 83.7 MB
Events in quadrant A3,201,742566,019
Events in quadrant B3,335,958575,420
Events in quadrant C3,349,219554,587
Events in quadrant D3,839,773526,739

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136542
B0139841
C0139141
D0156211

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6244671.073030%
B6244951.521461%
C6244560.896861%
D62441181.889814%

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 7495 6246 0 0 0.00% 0.00%
B 7495 6246 12 12 0.16% 0.19%
C 7495 6246 3 3 0.04% 0.05%
D 7495 6246 52 52 0.69% 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 15 25912 154.92 814 801 162.1
A 1 162 17770 104.69 814 801 162.1
A 5 98 8972 50.41 814 801 162.1
B 3 64 80734 528.46 815 797 151.3
B 4 142 30324 195.2 815 797 151.3
B 0 230 27738 178.11 815 797 151.3
C 14 220 230387 1290.96 780 788 177.9
C 3 233 80114 446.03 780 788 177.9
C 13 61 5538 26.71 780 788 177.9
D 13 249 393518 2149.17 770 751 182.8
D 8 195 353640 1930.96 770 751 182.8
D 5 222 76404 413.96 770 751 182.8

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