ASTROSAT CZTI

Data Quality Report

Orbit 03153

Creation date: 2024-06-27T14:25:17.096376
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_167T02_9000000432_03153cztM0_level2.evt modeM0/AS1G05_167T02_9000000432_03153cztM0_level2_quad_clean.evt
Size (bytes)418,760,64078,171,840
Size399.4 MB 74.6 MB
Events in quadrant A2,804,489494,546
Events in quadrant B2,900,215500,708
Events in quadrant C2,785,106497,750
Events in quadrant D3,791,165461,714

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0125951
B0126051
C0124581
D0154591

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5894490.831354%
B5894400.678656%
C5894420.712589%
D58941762.986088%

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 6964 5895 10 10 0.14% 0.17%
B 6964 5895 9 9 0.13% 0.15%
C 6964 5895 34 34 0.49% 0.58%
D 6964 5895 163 163 2.34% 2.77%

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 14 249 162836 1167.86 673 658 138.9
A 3 1 40381 286.05 673 658 138.9
A 12 247 7636 50.25 673 658 138.9
B 4 81 61452 455.54 685 669 133.4
B 5 70 60581 449.01 685 669 133.4
B 3 0 60534 448.66 685 669 133.4
C 14 223 150337 972.16 656 662 154.0
C 14 234 22314 140.63 656 662 154.0
C 15 208 16194 100.88 656 662 154.0
D 12 233 797343 5090.62 641 622 156.5
D 2 136 143160 910.74 641 622 156.5
D 13 223 116293 739.08 641 622 156.5

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