ASTROSAT CZTI

Data Quality Report

Orbit 33510

Creation date: 2024-06-27T20:49:37.101255
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/AS1A11_060T01_9000004804_33510cztM0_level2.evt modeM0/AS1A11_060T01_9000004804_33510cztM0_level2_quad_clean.evt
Size (bytes)534,945,60065,350,080
Size510.2 MB 62.3 MB
Events in quadrant A2,545,905425,298
Events in quadrant B5,313,399389,787
Events in quadrant C3,354,948419,370
Events in quadrant D4,638,776383,743

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0310
B0310
C0310
D0320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0104433
B0191192
C0131622
D0173282

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A513390.175336%
B513397819.053185%
C51331192.318332%
D51333176.175726%

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 7227 5134 0 0 0.00% 0.00%
B 7227 5134 772 772 10.68% 15.04%
C 7227 5134 117 117 1.62% 2.28%
D 7226 5133 301 301 4.17% 5.86%

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 13 254 8950 63.44 657 644 130.9
A 3 137 5896 40.11 657 644 130.9
A 10 83 5754 39.03 657 644 130.9
B 5 172 1645941 14225.48 610 595 115.7
B 5 255 1228014 10612.13 610 595 115.7
B 4 171 25504 215.36 610 595 115.7
C 0 10 246279 1641.79 652 660 149.6
C 15 214 227176 1514.1 652 660 149.6
C 9 236 127337 846.75 652 660 149.6
D 8 195 672892 4404.37 630 615 152.6
D 2 250 498796 3263.79 630 615 152.6
D 14 52 399878 2615.74 630 615 152.6

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