ASTROSAT CZTI

Data Quality Report

Orbit 28040

Creation date: 2024-06-27T19:47:23.609531
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_048T02_9000004050_28040cztM0_level2.evt modeM0/AS1A10_048T02_9000004050_28040cztM0_level2_quad_clean.evt
Size (bytes)524,047,68096,710,400
Size499.8 MB 92.2 MB
Events in quadrant A3,407,435637,924
Events in quadrant B3,487,890640,065
Events in quadrant C3,719,023603,421
Events in quadrant D4,810,594588,822

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140070
B0142530
C0152090
D0188990

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0200
C0200
D0200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6575961.460076%
B65751051.596958%
C65751572.387833%
D65742443.711591%

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 7630 6575 0 0 0.00% 0.00%
B 7630 6575 2 2 0.03% 0.03%
C 7630 6575 7 7 0.09% 0.11%
D 7629 6574 154 154 2.02% 2.34%

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 13 254 10159 52.91 882 869 175.6
A 3 137 8220 41.86 882 869 175.6
A 0 226 7476 37.63 882 869 175.6
B 12 111 20320 119.09 871 853 163.5
B 11 111 18342 106.99 871 853 163.5
B 14 111 17697 103.04 871 853 163.5
C 3 233 336450 1731.28 832 840 193.9
C 14 238 136806 701.4 832 840 193.9
C 13 61 5544 24.27 832 840 193.9
D 8 195 996702 5007.87 839 819 198.9
D 1 52 535358 2687.97 839 819 198.9
D 7 80 63710 316.25 839 819 198.9

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