ASTROSAT CZTI

Data Quality Report

Orbit 27932

Creation date: 2024-06-27T19:46:07.911243
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/AS1A10_049T01_9000004032_27932cztM0_level2.evt modeM0/AS1A10_049T01_9000004032_27932cztM0_level2_quad_clean.evt
Size (bytes)486,990,72086,572,800
Size464.4 MB 82.6 MB
Events in quadrant A2,985,476567,785
Events in quadrant B3,932,517552,280
Events in quadrant C3,725,942538,715
Events in quadrant D3,690,250536,507

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0127910
B0155270
C0149160
D0147240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6103530.868425%
B61043786.192661%
C61042003.276540%
D6104931.523591%

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 7158 6103 0 0 0.00% 0.00%
B 7159 6104 259 259 3.62% 4.24%
C 7159 6104 51 51 0.71% 0.84%
D 7159 6104 42 42 0.59% 0.69%

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 13 254 10241 61.91 772 757 153.2
A 3 137 7075 41.24 772 757 153.2
A 0 226 6571 37.95 772 757 153.2
B 10 245 946738 6702.97 746 727 141.1
B 0 183 29971 207.21 746 727 141.1
B 12 111 16896 114.57 746 727 141.1
C 2 16 565643 3295.36 740 743 171.4
C 14 238 119981 695.58 740 743 171.4
C 3 233 115712 670.67 740 743 171.4
D 12 79 364726 2046.88 750 730 177.8
D 1 52 192314 1077.35 750 730 177.8
D 8 195 176499 988.41 750 730 177.8

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