ASTROSAT CZTI

Data Quality Report

Orbit 32033

Creation date: 2024-06-27T20:35:40.219643
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/AS1T04_046T01_9000004680_32033cztM0_level2.evt modeM0/AS1T04_046T01_9000004680_32033cztM0_level2_quad_clean.evt
Size (bytes)579,853,44073,840,320
Size553.0 MB 70.4 MB
Events in quadrant A3,099,470482,247
Events in quadrant B5,416,489453,481
Events in quadrant C3,887,858469,025
Events in quadrant D4,794,694455,274

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01265491
B019723194
C015577112
D017900103

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0171
B0170
C0170
D0170

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01091
B01080
C01080
D01080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5377821.525014%
B535662811.725168%
C53743095.749907%
D53712374.412586%

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 7573 5387 0 0 0.00% 0.00%
B 7573 5373 326 326 4.30% 6.07%
C 7573 5388 32 32 0.42% 0.59%
D 7573 5382 159 159 2.10% 2.95%

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 6 14445 87.54 799 787 156.0
A 13 254 10100 59.69 799 787 156.0
A 3 137 6992 39.77 799 787 156.0
B 6 159 1360077 9887.89 750 734 137.5
B 12 18 937340 6812.89 750 734 137.5
B 0 190 79431 572.44 750 734 137.5
C 3 233 539362 3083.68 767 775 174.7
C 0 10 157619 898.01 767 775 174.7
C 14 238 128979 734.03 767 775 174.7
D 8 195 1280801 7141.45 772 755 179.2
D 12 218 392019 2182.89 772 755 179.2
D 2 250 173792 965.38 772 755 179.2

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