ASTROSAT CZTI

Data Quality Report

Orbit 07732

Creation date: 2024-06-27T15:23:16.845886
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_064T01_9000001066_07732cztM0_level2.evt modeM0/AS1G06_064T01_9000001066_07732cztM0_level2_quad_clean.evt
Size (bytes)478,621,44088,024,320
Size456.4 MB 83.9 MB
Events in quadrant A3,435,598546,572
Events in quadrant B3,544,884549,453
Events in quadrant C3,472,215537,834
Events in quadrant D3,539,848517,349

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0152393
B0154172
C0153022
D0156342

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A73901311.772666%
B73901602.165088%
C7390941.271989%
D73901181.596752%

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 7950 7390 0 0 0.00% 0.00%
B 7950 7390 7 7 0.09% 0.09%
C 7950 7391 0 0 0.00% 0.00%
D 7950 7390 9 9 0.11% 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 15 234 20357 107.6 885 863 181.2
A 0 226 8516 42.24 885 863 181.2
A 12 194 7725 37.87 885 863 181.2
B 4 239 29129 164.7 886 863 171.6
B 0 214 27813 157.03 886 863 171.6
B 4 81 27403 154.64 886 863 171.6
C 9 68 65622 323.68 862 865 200.1
C 9 243 33828 164.76 862 865 200.1
C 12 4 7581 33.57 862 865 200.1
D 2 152 67975 316.91 867 839 211.8
D 13 104 49904 231.61 867 839 211.8
D 7 55 35204 162.22 867 839 211.8

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