ASTROSAT CZTI

Data Quality Report

Orbit 25113

Creation date: 2024-06-27T19:14:00.165692
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/AS1C05_012T06_9000003674_25113cztM0_level2.evt modeM0/AS1C05_012T06_9000003674_25113cztM0_level2_quad_clean.evt
Size (bytes)502,309,440126,414,720
Size479.0 MB 120.6 MB
Events in quadrant A3,135,299853,903
Events in quadrant B3,479,447878,628
Events in quadrant C3,431,441855,128
Events in quadrant D4,748,969811,467

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0190
C0190
D0190

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133890
B0145190
C0144030
D0184730

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6161300.486934%
B61611081.752962%
C61611061.720500%
D61611332.158740%

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 7511 6162 0 0 0.00% 0.00%
B 7511 6162 21 21 0.28% 0.34%
C 7511 6162 2 2 0.03% 0.03%
D 7511 6162 64 64 0.85% 1.04%

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 10830 63.2 810 796 158.8
A 4 2 9996 57.95 810 796 158.8
A 0 226 7058 39.44 810 796 158.8
B 0 189 154579 1029.55 817 799 149.4
B 0 229 57641 380.56 817 799 149.4
B 15 36 29550 192.49 817 799 149.4
C 14 238 129505 699.92 803 810 183.9
C 7 247 111151 600.1 803 810 183.9
C 3 233 36686 195.11 803 810 183.9
D 8 195 1099919 5775.65 799 778 190.3
D 12 233 172612 902.93 799 778 190.3
D 1 52 170860 893.73 799 778 190.3

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