ASTROSAT CZTI

Data Quality Report

Orbit 03806

Creation date: 2024-06-27T14:33:51.033049
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_194T01_9000000490_03806cztM0_level2.evt modeM0/AS1G05_194T01_9000000490_03806cztM0_level2_quad_clean.evt
Size (bytes)453,329,28079,931,520
Size432.3 MB 76.2 MB
Events in quadrant A3,666,266502,844
Events in quadrant B3,282,147510,261
Events in quadrant C3,119,804485,673
Events in quadrant D3,222,735471,864

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0148843
B0135532
C0135292
D0139612

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64511372.123702%
B6451761.178112%
C6451590.914587%
D6451891.379631%

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 7711 6451 54 54 0.70% 0.84%
B 7711 6451 0 0 0.00% 0.00%
C 7711 6452 6 6 0.08% 0.09%
D 7711 6452 43 43 0.56% 0.67%

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 13 251 339246 2077.17 811 798 162.9
A 0 50 151488 924.84 811 798 162.9
A 0 118 26872 160.02 811 798 162.9
B 0 173 39890 249.27 817 799 156.8
B 14 167 34286 213.54 817 799 156.8
B 15 204 30387 188.67 817 799 156.8
C 2 53 55839 306.65 770 774 179.6
C 0 239 20052 107.36 770 774 179.6
C 9 247 19967 106.88 770 774 179.6
D 13 223 129512 697.21 773 753 184.7
D 2 32 59911 320.33 773 753 184.7
D 13 239 28737 151.53 773 753 184.7

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
Veto Counter