ASTROSAT CZTI

Data Quality Report

Orbit 32892

Creation date: 2024-06-27T20:43:10.715226
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_005T05_9000004744_32892cztM0_level2.evt modeM0/AS1A11_005T05_9000004744_32892cztM0_level2_quad_clean.evt
Size (bytes)491,065,92066,968,640
Size468.3 MB 63.9 MB
Events in quadrant A3,081,071410,540
Events in quadrant B3,285,909414,134
Events in quadrant C3,028,971414,516
Events in quadrant D5,077,823377,965

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0310
B0310
C0310
D0310

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0128363
B0133702
C0126282
D0191342

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A587860.102076%
B58781372.330725%
C5878580.986730%
D58781793.045253%

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 8954 5880 0 0 0.00% 0.00%
B 8954 5880 85 85 0.95% 1.45%
C 8954 5880 48 48 0.54% 0.82%
D 8954 5880 111 111 1.24% 1.89%

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 14 63 400035 2897.77 687 672 137.8
A 13 6 13289 91.55 687 672 137.8
A 13 254 11871 81.26 687 672 137.8
B 5 172 440938 3406.2 683 666 129.3
B 0 219 59326 453.83 683 666 129.3
B 0 197 39312 298.99 683 666 129.3
C 0 10 219875 1414.03 668 673 155.0
C 14 67 145076 931.51 668 673 155.0
C 7 221 17453 108.24 668 673 155.0
D 8 195 1708993 9994.99 657 643 170.9
D 2 250 271622 1585.41 657 643 170.9
D 2 120 157994 920.61 657 643 170.9

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