ASTROSAT CZTI

Data Quality Report

Orbit 38044

Creation date: 2024-06-27T21:47:42.602695
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/AS1A11_024T01_9000005358_38044cztM0_level2.fits modeM0/AS1A11_024T01_9000005358_38044cztM0_level2_quad_clean.evt
Size (bytes)68,411,52018,336,960
Size65.2 MB 17.5 MB
Events in quadrant A676,543117,959
Events in quadrant B569,510127,184
Events in quadrant C601,145118,003
Events in quadrant D598,209101,826

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02810
B0263
C0235
D0277

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140195035691048140192027508782
B0-1-1
C0-1-1
D0-1-1

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090356360
B088736643
C084696133
D0104178084

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1069121.122544%
B108740.367985%
C108750.459982%
D1034151.450677%

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 7086 1363 1 1 0.01% 0.07%
B 7084 1370 0 0 0.00% 0.00%
C 7086 1394 1 1 0.01% 0.07%
D 7086 1310 8 8 0.11% 0.61%

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 135362 4573.31 137 134 29.6
A 9 143 3405 110.62 137 134 29.6
A 10 67 2672 85.83 137 134 29.6
B 12 18 4714 159.41 139 136 28.7
B 5 184 3775 126.72 139 136 28.7
B 12 111 3387 113.21 139 136 28.7
C 15 214 51541 1538.79 136 137 33.4
C 14 254 4818 140.13 136 137 33.4
C 0 10 4746 137.97 136 137 33.4
D 1 47 38298 1134.23 130 126 33.7
D 7 223 13522 398.04 130 126 33.7
D 13 249 11501 337.99 130 126 33.7

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