ASTROSAT CZTI

Data Quality Report

Orbit 09512

Creation date: 2024-06-27T15:47:05.511357
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_230T06_9000001350_09512cztM0_level2.evt modeM0/AS1G05_230T06_9000001350_09512cztM0_level2_quad_clean.evt
Size (bytes)529,392,96098,706,240
Size504.9 MB 94.1 MB
Events in quadrant A4,467,754627,617
Events in quadrant B3,551,984637,205
Events in quadrant C3,321,186623,619
Events in quadrant D4,208,106604,146

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0179933
B0151307
C0148762
D0173604

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0190

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A71421842.576309%
B7140991.386555%
C7142570.798096%
D71411021.428371%

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 8947 7144 12 12 0.13% 0.17%
B 8947 7144 2 2 0.02% 0.03%
C 8947 7144 0 0 0.00% 0.00%
D 8947 7144 45 45 0.50% 0.63%

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 8 5 899184 5062.19 873 854 177.5
A 1 162 104953 586.61 873 854 177.5
A 1 178 37455 206.25 873 854 177.5
B 0 219 69899 409.87 872 851 168.5
B 0 214 51635 301.45 872 851 168.5
B 12 111 17588 99.35 872 851 168.5
C 4 254 43385 218.5 837 842 194.7
C 13 61 6333 28.2 837 842 194.7
C 14 234 5548 24.17 837 842 194.7
D 1 52 314950 1447.15 837 817 217.1
D 7 71 186482 855.32 837 817 217.1
D 2 16 176229 808.09 837 817 217.1

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