ASTROSAT CZTI

Data Quality Report

Orbit 14102

Creation date: 2024-06-27T16:50:23.874705
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_022T01_9000002078_14102cztM0_level2.evt modeM0/AS1G08_022T01_9000002078_14102cztM0_level2_quad_clean.evt
Size (bytes)548,645,760111,064,320
Size523.2 MB 105.9 MB
Events in quadrant A3,899,121734,269
Events in quadrant B4,289,412719,781
Events in quadrant C3,682,874702,475
Events in quadrant D4,227,007676,629

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D040

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0166433
B0178882
C0157982
D0180282

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A76251151.508197%
B76252242.937705%
C7625290.380328%
D76251461.914754%

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 7851 7628 18 18 0.23% 0.24%
B 7851 7628 88 88 1.12% 1.15%
C 7851 7628 0 0 0.00% 0.00%
D 7851 7628 53 53 0.68% 0.69%

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 15 222 171776 919.32 917 894 185.9
A 9 143 133891 715.5 917 894 185.9
A 12 189 49805 263.13 917 894 185.9
B 10 16 500087 2876.98 910 887 173.5
B 0 189 144167 825.75 910 887 173.5
B 12 111 20295 111.85 910 887 173.5
C 3 233 208872 1008.11 888 891 206.3
C 14 234 7602 32.53 888 891 206.3
C 13 61 6375 26.58 888 891 206.3
D 1 52 314328 1515.91 874 853 206.8
D 15 0 210302 1012.86 874 853 206.8
D 12 110 201647 971.01 874 853 206.8

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