ASTROSAT CZTI

Data Quality Report

Orbit 05411

Creation date: 2024-06-27T14:54:53.040994
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/AS1G05_214T01_9000000684_05411cztM0_level2.evt modeM0/AS1G05_214T01_9000000684_05411cztM0_level2_quad_clean.evt
Size (bytes)540,636,48076,515,840
Size515.6 MB 73.0 MB
Events in quadrant A3,063,001488,810
Events in quadrant B3,450,727485,570
Events in quadrant C3,085,720482,843
Events in quadrant D6,347,381420,405

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133412
B0144081
C0133981
D0232341

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6290520.826709%
B62901001.589825%
C6290360.572337%
D629070911.271860%

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 7491 6291 7 7 0.09% 0.11%
B 7491 6291 50 50 0.67% 0.79%
C 7491 6291 8 8 0.11% 0.13%
D 7491 6291 589 589 7.86% 9.36%

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 50 61565 394.94 759 745 154.0
A 15 174 40193 256.16 759 745 154.0
A 13 6 27816 175.79 759 745 154.0
B 10 16 218832 1514.6 760 743 144.0
B 15 204 124105 856.73 760 743 144.0
B 4 48 57709 395.62 760 743 144.0
C 9 247 112818 659.19 734 740 170.0
C 1 16 88579 516.63 734 740 170.0
C 14 67 16033 89.95 734 740 170.0
D 2 63 3270084 19002.4 704 683 172.1
D 2 33 164591 952.66 704 683 172.1
D 2 152 79710 459.32 704 683 172.1

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