ASTROSAT CZTI

Data Quality Report

Orbit 07239

Creation date: 2024-06-27T15:17:13.210964
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/AS1G05_246T03_9000000990_07239cztM0_level2.evt modeM0/AS1G05_246T03_9000000990_07239cztM0_level2_quad_clean.evt
Size (bytes)490,991,04091,506,240
Size468.2 MB 87.3 MB
Events in quadrant A3,231,937577,086
Events in quadrant B3,801,302585,883
Events in quadrant C4,018,487577,834
Events in quadrant D3,351,922551,943

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142853
B0158352
C0164342
D0150652

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6860741.078717%
B68601582.303207%
C6860390.568513%
D68601001.457726%

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 7775 6862 21 21 0.27% 0.31%
B 7775 6861 92 92 1.18% 1.34%
C 7775 6862 7 7 0.09% 0.10%
D 7775 6862 69 69 0.89% 1.01%

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 75226 456.33 793 775 163.2
A 13 248 72856 441.8 793 775 163.2
A 14 238 19313 113.62 793 775 163.2
B 10 16 484341 3163.95 799 781 152.8
B 4 81 93334 605.58 799 781 152.8
B 0 214 76421 494.92 799 781 152.8
C 9 68 1014554 5706.79 768 771 177.6
C 13 61 5919 28.98 768 771 177.6
C 12 4 5845 28.56 768 771 177.6
D 2 14 148018 788.55 762 738 186.8
D 12 233 147380 785.14 762 738 186.8
D 13 169 73335 388.69 762 738 186.8

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