ASTROSAT CZTI

Data Quality Report

Orbit 03066

Creation date: 2024-06-27T14:24:10.691039
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_238T03_9000000424_03066cztM0_level2.evt modeM0/AS1G05_238T03_9000000424_03066cztM0_level2_quad_clean.evt
Size (bytes)364,147,20040,789,440
Size347.3 MB 38.9 MB
Events in quadrant A2,748,274221,567
Events in quadrant B2,700,481223,778
Events in quadrant C2,547,820217,381
Events in quadrant D2,680,779210,652

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0113863
B0114162
C0110752
D0116482

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0300
C0300
D0310

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5150571.106796%
B5150180.349515%
C5150310.601942%
D5150611.184466%

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 7305 5151 45 45 0.62% 0.87%
B 7305 5151 7 7 0.10% 0.14%
C 7305 5151 16 16 0.22% 0.31%
D 7305 5151 51 51 0.70% 0.99%

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 15 231593 1944.22 584 574 118.8
A 0 5 168155 1410.34 584 574 118.8
A 14 238 45060 374.39 584 574 118.8
B 0 230 152945 1344.83 594 582 113.3
B 15 204 122401 1075.23 594 582 113.3
B 0 219 54318 474.3 594 582 113.3
C 14 223 258320 1958.08 562 565 131.6
C 1 16 30401 226.65 562 565 131.6
C 15 208 28744 214.07 562 565 131.6
D 2 152 112654 777.81 556 541 144.1
D 7 80 94603 652.58 556 541 144.1
D 1 20 91559 631.46 556 541 144.1

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