ASTROSAT CZTI

Data Quality Report

Orbit 07668

Creation date: 2024-06-27T15:22:28.367975
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/AS1G06_114T01_9000001056_07668cztM0_level2.evt modeM0/AS1G06_114T01_9000001056_07668cztM0_level2_quad_clean.evt
Size (bytes)388,203,84077,921,280
Size370.2 MB 74.3 MB
Events in quadrant A2,642,864492,709
Events in quadrant B2,809,421500,858
Events in quadrant C3,100,549492,117
Events in quadrant D2,810,827470,147

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0117022
B0121291
C0130311
D0122841

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A576890.156033%
B5768260.450763%
C5768550.953537%
D5768160.277393%

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 6923 5769 0 0 0.00% 0.00%
B 6923 5769 3 3 0.04% 0.05%
C 6923 5769 39 39 0.56% 0.68%
D 6923 5769 7 7 0.10% 0.12%

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 0 226 6496 41.32 685 670 141.0
A 12 194 5930 37.3 685 670 141.0
A 13 164 3834 22.44 685 670 141.0
B 10 245 35368 261.83 690 674 132.5
B 0 230 26595 195.62 690 674 132.5
B 0 214 18037 131.04 690 674 132.5
C 9 68 466848 2976.09 672 676 156.6
C 9 243 6957 40.1 672 676 156.6
C 13 61 5246 29.18 672 676 156.6
D 2 152 88058 533.08 670 650 164.0
D 13 104 60403 364.42 670 650 164.0
D 1 20 42388 254.55 670 650 164.0

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