ASTROSAT CZTI

Data Quality Report

Orbit 09366

Creation date: 2024-06-27T15:45:06.213720
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/AS1G07_040T01_9000001326_09366cztM0_level2.evt modeM0/AS1G07_040T01_9000001326_09366cztM0_level2_quad_clean.evt
Size (bytes)611,363,52089,435,520
Size583.0 MB 85.3 MB
Events in quadrant A3,649,050596,383
Events in quadrant B3,009,115609,348
Events in quadrant C2,926,219590,941
Events in quadrant D8,505,401472,875

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150553
B0132052
C0132382
D0296202

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0240

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62851061.686555%
B6285360.572792%
C628550.079554%
D6285189730.182975%

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 7485 6286 33 33 0.44% 0.52%
B 7485 6286 0 0 0.00% 0.00%
C 7485 6286 0 0 0.00% 0.00%
D 7485 6286 1777 1777 23.74% 28.27%

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 8 5 573951 3829.53 730 715 149.7
A 1 162 112024 743.61 730 715 149.7
A 1 178 42170 276.94 730 715 149.7
B 0 214 32733 227.86 744 727 140.5
B 0 197 25181 174.1 744 727 140.5
B 4 173 15454 104.85 744 727 140.5
C 9 68 150365 906.42 711 714 165.1
C 13 61 5422 28.52 711 714 165.1
C 8 222 2342 9.86 711 714 165.1
D 12 227 5336740 34561.28 598 585 154.4
D 1 52 560466 3626.24 598 585 154.4
D 8 195 174831 1128.56 598 585 154.4

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