ASTROSAT CZTI

Data Quality Report

Orbit 45672

Creation date: 2024-06-27T23:14:50.917241
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_093T12_9000006118_45672cztM0_level2.fits modeM0/AS1A13_093T12_9000006118_45672cztM0_level2_quad_clean.evt
Size (bytes)449,539,200109,408,320
Size428.7 MB 104.3 MB
Events in quadrant A5,816,074720,853
Events in quadrant B3,349,746744,250
Events in quadrant C2,990,532726,733
Events in quadrant D3,949,450641,163

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220662
B0148342
C0141762
D0166883

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A68831351.961354%
B68831031.496441%
C6883140.203400%
D68822523.661726%

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 7783 6883 12 12 0.15% 0.17%
B 7783 6884 51 51 0.66% 0.74%
C 7783 6884 12 12 0.15% 0.17%
D 7782 6883 229 229 2.94% 3.33%

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 2845679 18441.92 740 721 154.3
A 2 79 61616 394.74 740 721 154.3
A 13 248 40531 258.06 740 721 154.3
B 5 172 192274 1318.45 740 718 145.3
B 5 255 35964 242.59 740 718 145.3
B 0 183 29844 200.47 740 718 145.3
C 14 254 139159 808.36 729 732 171.2
C 13 61 4984 24.83 729 732 171.2
C 3 233 4482 21.9 729 732 171.2
D 13 249 811942 4464.97 716 690 181.7
D 2 249 132057 723.02 716 690 181.7
D 11 241 71997 392.46 716 690 181.7

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