ASTROSAT CZTI

Data Quality Report

Orbit 32215

Creation date: 2024-06-27T20:37:40.968550
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/AS1A10_057T01_9000004692_32215cztM0_level2.evt modeM0/AS1A10_057T01_9000004692_32215cztM0_level2_quad_clean.evt
Size (bytes)833,538,24088,551,360
Size794.9 MB 84.4 MB
Events in quadrant A3,911,232552,384
Events in quadrant B6,542,466553,748
Events in quadrant C3,877,136538,658
Events in quadrant D10,378,838485,362

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0166072
B0254371
C0163861
D0364341

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01600
B01600
C01600
D01600

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7924941.186270%
B79243504.416961%
C79242463.104493%
D7924138017.415447%

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 8394 7925 3 3 0.04% 0.04%
B 8394 7925 147 147 1.75% 1.85%
C 8394 7925 9 9 0.11% 0.11%
D 8394 7925 1162 1162 13.84% 14.66%

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 12 189 213062 1100.39 953 932 192.8
A 13 254 14781 71.84 953 932 192.8
A 3 137 9765 45.82 953 932 192.8
B 6 159 2129230 11877.64 928 907 179.2
B 5 172 511319 2848.48 928 907 179.2
B 0 190 160483 890.55 928 907 179.2
C 14 238 190706 889.19 903 908 213.5
C 14 254 66595 307.74 903 908 213.5
C 0 10 48721 224.0 903 908 213.5
D 5 172 3186202 15056.88 873 847 211.6
D 2 250 1354227 6397.3 873 847 211.6
D 8 195 1271441 6005.98 873 847 211.6

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