ASTROSAT CZTI

Data Quality Report

Orbit 10310

Creation date: 2024-06-27T15:57:45.274582
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/AS1A03_124T01_9000001486_10310cztM0_level2.evt modeM0/AS1A03_124T01_9000001486_10310cztM0_level2_quad_clean.evt
Size (bytes)406,719,36076,944,960
Size387.9 MB 73.4 MB
Events in quadrant A2,871,836468,048
Events in quadrant B2,882,021457,964
Events in quadrant C2,758,032472,168
Events in quadrant D3,395,882512,608

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03297720677
B03660024313
C03364721310
D03598321502

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A084
B084
C084
D084

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0326194
B0326197
C0326193
D0312183

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A57661372.375997%
B55941322.359671%
C5883811.376849%
D6686921.376010%

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 8391 7090 0 0 0.00% 0.00%
B 8391 6908 1 1 0.01% 0.01%
C 8390 7143 0 0 0.00% 0.00%
D 8391 7251 3 3 0.04% 0.04%

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 110929 760.75 704 687 144.9
A 8 5 35771 242.1 704 687 144.9
A 3 1 9136 58.3 704 687 144.9
B 4 239 192314 1445.15 678 662 132.6
B 0 214 27813 204.73 678 662 132.6
B 12 111 14422 103.76 678 662 132.6
C 4 254 20286 119.52 698 703 163.8
C 13 61 5286 27.97 698 703 163.8
C 14 255 4601 23.79 698 703 163.8
D 8 195 150894 778.71 791 769 192.8
D 2 16 77238 396.65 791 769 192.8
D 12 233 51713 264.25 791 769 192.8

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