ASTROSAT CZTI

Data Quality Report

Orbit 17699

Creation date: 2024-06-27T17:39:44.297716
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/AS1T03_040T01_9000002628_17699cztM0_level2.evt modeM0/AS1T03_040T01_9000002628_17699cztM0_level2_quad_clean.evt
Size (bytes)247,567,68045,555,840
Size236.1 MB 43.4 MB
Events in quadrant A1,573,352290,932
Events in quadrant B2,138,203294,893
Events in quadrant C1,680,220287,685
Events in quadrant D1,888,183279,698

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0660
B0660
C0660
D0660

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A066831
B084491
C069631
D077421

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3178260.818125%
B31781615.066079%
C3178511.604783%
D3178802.517306%

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 4308 3179 0 0 0.00% 0.00%
B 4308 3179 90 90 2.09% 2.83%
C 4308 3179 0 0 0.00% 0.00%
D 4308 3179 25 25 0.58% 0.79%

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 0 226 3534 37.08 409 399 84.5
A 12 194 3037 31.2 409 399 84.5
A 3 137 3001 30.78 409 399 84.5
B 10 245 497679 6432.3 403 394 77.3
B 0 189 23691 301.34 403 394 77.3
B 12 111 9068 112.2 403 394 77.3
C 3 233 65164 697.6 394 395 92.8
C 14 238 60288 645.08 394 395 92.8
C 5 218 13982 146.34 394 395 92.8
D 7 238 255063 2466.72 393 383 103.2
D 1 20 82602 796.34 393 383 103.2
D 1 52 19342 183.63 393 383 103.2

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