ASTROSAT CZTI

Data Quality Report

Orbit 14128

Creation date: 2024-06-27T16:50:56.919728
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/AS1G08_033T01_9000002084_14128cztM0_level2.evt modeM0/AS1G08_033T01_9000002084_14128cztM0_level2_quad_clean.evt
Size (bytes)323,179,20064,396,800
Size308.2 MB 61.4 MB
Events in quadrant A1,940,076439,792
Events in quadrant B2,553,851425,977
Events in quadrant C1,933,807419,406
Events in quadrant D3,101,361396,885

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0780
B0780
C0780
D0780

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A081722
B0100011
C080161
D0117861

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3788651.715945%
B37882466.494192%
C3788230.607181%
D37882075.464625%

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 5069 3790 0 0 0.00% 0.00%
B 5069 3790 166 166 3.27% 4.38%
C 5069 3790 0 0 0.00% 0.00%
D 5069 3790 150 150 2.96% 3.96%

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 12 189 67896 689.51 482 472 97.8
A 9 143 8620 83.33 482 472 97.8
A 12 96 4473 40.92 482 472 97.8
B 0 85 578720 6410.93 474 462 90.2
B 10 252 51121 561.64 474 462 90.2
B 0 190 29842 325.73 474 462 90.2
C 3 233 115209 1062.8 465 467 108.0
C 13 61 3383 27.01 465 467 108.0
C 5 96 3155 24.9 465 467 108.0
D 1 52 881193 8000.52 455 445 110.1
D 7 80 231438 2098.29 455 445 110.1
D 8 195 193058 1749.65 455 445 110.1

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