ASTROSAT CZTI

Data Quality Report

Orbit 47426

Creation date: 2024-07-05T19:38:05.402581
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_053T01_9000006326_47426cztM0_level2.fits modeM0/AS1A13_053T01_9000006326_47426cztM0_level2_quad_clean.evt
Size (bytes)2,433,386,880442,370,880
Size2.3 GB 421.9 MB
Events in quadrant A28,444,5802,965,143
Events in quadrant B16,792,0502,989,505
Events in quadrant C12,716,6912,991,228
Events in quadrant D29,904,3842,467,336

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01050174
B0696264
C0593105
D01094144

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A05800
B05800
C05800
D05800

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2878910163.529126%
B2878914695.102643%
C287883681.278310%
D28789396013.755254%

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 30484 28793 67 67 0.22% 0.23%
B 30484 28793 703 703 2.31% 2.44%
C 30483 28792 51 51 0.17% 0.18%
D 30484 28793 3533 3533 11.59% 12.27%

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 14662054 22298.29 3168 3091 657.4
A 9 191 1501081 2278.65 3168 3091 657.4
A 14 248 38505 53.87 3168 3091 657.4
B 5 32 3111787 5104.87 3131 3027 609.0
B 5 255 599300 979.14 3131 3027 609.0
B 0 198 235054 381.01 3131 3027 609.0
C 0 207 308299 414.06 3148 3155 737.0
C 3 233 41120 51.52 3148 3155 737.0
C 12 249 40698 50.94 3148 3155 737.0
D 6 112 14651844 19301.71 3029 2927 758.9
D 2 249 1433435 1884.87 3029 2927 758.9
D 12 233 1081298 1420.88 3029 2927 758.9

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