ASTROSAT CZTI

Data Quality Report

Orbit 38399

Creation date: 2024-06-27T21:52:14.049142
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/AS1A12_018T01_9000005386_38399cztM0_level2.fits modeM0/AS1A12_018T01_9000005386_38399cztM0_level2_quad_clean.evt
Size (bytes)67,628,16016,557,120
Size64.5 MB 15.8 MB
Events in quadrant A572,190112,635
Events in quadrant B449,219116,736
Events in quadrant C464,110108,321
Events in quadrant D942,96892,577

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A023082
B019011
C019231
D034361

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A93350.535906%
B93340.428725%
C93330.321543%
D885455.084746%

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 933 933 2 2 0.21% 0.21%
B 933 933 0 0 0.00% 0.00%
C 933 933 1 1 0.11% 0.11%
D 885 885 35 35 3.95% 3.95%

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 116213 4778.79 111 109 24.3
A 9 143 17109 699.71 111 109 24.3
A 13 248 3801 151.96 111 109 24.3
B 0 189 11636 495.48 110 107 23.3
B 12 111 2737 113.03 110 107 23.3
B 11 111 2478 101.9 110 107 23.3
C 15 214 45929 1756.62 104 104 26.1
C 0 10 11112 421.97 104 104 26.1
C 15 159 908 30.82 104 104 26.1
D 10 203 308202 12217.45 97 94 25.2
D 2 250 131407 5206.97 97 94 25.2
D 2 16 37598 1487.15 97 94 25.2

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