ASTROSAT CZTI

Data Quality Report

Orbit 47130

Creation date: 2024-06-27T23:32:04.142688
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/AS1C09_003T01_9000006298_47130cztM0_level2.fits modeM0/AS1C09_003T01_9000006298_47130cztM0_level2_quad_clean.evt
Size (bytes)517,584,960113,757,120
Size493.6 MB 108.5 MB
Events in quadrant A7,164,343747,341
Events in quadrant B4,025,765770,477
Events in quadrant C3,202,341740,902
Events in quadrant D4,201,996679,325

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0266515
B0168512
C0151612
D0178402

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A72764145.689940%
B72773444.727223%
C72771492.047547%
D72772964.067610%

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 7676 7277 2 2 0.03% 0.03%
B 7677 7278 89 89 1.16% 1.22%
C 7677 7279 9 9 0.12% 0.12%
D 7677 7279 136 136 1.77% 1.87%

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 10 83 3952619 23415.43 808 789 168.8
A 0 247 29133 167.94 808 789 168.8
A 9 191 18031 102.16 808 789 168.8
B 4 21 240716 1505.78 803 776 159.3
B 5 32 180136 1125.6 803 776 159.3
B 0 200 110491 688.53 803 776 159.3
C 14 254 97508 527.65 789 790 183.3
C 1 3 17329 90.23 789 790 183.3
C 13 61 5493 25.66 789 790 183.3
D 1 47 241301 1218.48 789 760 197.4
D 12 233 235825 1190.74 789 760 197.4
D 8 48 143350 722.3 789 760 197.4

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