ASTROSAT CZTI

Data Quality Report

Orbit 48103

Creation date: 2024-08-20T10:22:09.165558
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/AS1A13_071T03_9000006400_48103cztM0_level2.fits modeM0/AS1A13_071T03_9000006400_48103cztM0_level2_quad_clean.evt
Size (bytes)1,523,577,600279,420,480
Size1.4 GB 266.5 MB
Events in quadrant A23,740,9802,393,099
Events in quadrant B4,049,173345
Events in quadrant C10,361,5872,444,412
Events in quadrant D16,415,7652,017,168

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0230

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0860813
B0249333
C0486013
D0662083

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A04720
B04720
C04720
D04720

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A233239103.901728%
B233242332199.987138%
C233241080.463042%
D23324243910.457040%

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 25588 23326 223 223 0.87% 0.96%
B 25588 23323 5 5 0.02% 0.02%
C 25589 23328 24 24 0.09% 0.10%
D 25589 23327 2065 2065 8.07% 8.85%

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 10 83 13358880 25262.22 2550 2491 528.7
A 14 248 393772 740.07 2550 2491 528.7
A 13 248 70746 129.1 2550 2491 528.7
B 2 177 3219325 90798.36 167 162 35.5
B 5 32 43347 1218.06 167 162 35.5
B 4 21 38477 1080.7 167 162 35.5
C 14 254 191444 315.63 2548 2566 598.4
C 12 2 116161 189.82 2548 2566 598.4
C 12 250 97137 158.03 2548 2566 598.4
D 2 37 3778070 6315.36 2380 2307 597.9
D 12 2 1338011 2234.1 2380 2307 597.9
D 2 165 1026439 1712.97 2380 2307 597.9

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