ASTROSAT CZTI

Data Quality Report

Orbit 08673

Creation date: 2024-06-27T15:35:44.827917
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_024T01_9000001206_08673cztM0_level2.evt modeM0/AS1G07_024T01_9000001206_08673cztM0_level2_quad_clean.evt
Size (bytes)476,409,600133,493,760
Size454.3 MB 127.3 MB
Events in quadrant A3,340,476874,689
Events in quadrant B3,700,988897,814
Events in quadrant C3,251,566896,904
Events in quadrant D3,624,731851,656

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0155103
B0163082
C0153272
D0164292

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7504991.319296%
B75042062.745203%
C7504510.679638%
D75041221.625800%

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 7924 7506 13 13 0.16% 0.17%
B 7924 7505 22 22 0.28% 0.29%
C 7924 7506 0 0 0.00% 0.00%
D 7924 7506 60 60 0.76% 0.80%

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 13 248 42651 243.25 837 817 172.0
A 15 174 39868 227.07 837 817 172.0
A 13 251 24539 137.93 837 817 172.0
B 10 16 256709 1610.22 847 826 158.9
B 4 48 48528 300.18 847 826 158.9
B 4 173 28991 177.24 847 826 158.9
C 13 61 6535 29.83 829 832 191.2
C 1 16 5319 23.47 829 832 191.2
C 8 128 4670 20.07 829 832 191.2
D 12 233 233821 1180.57 812 788 197.4
D 10 253 90287 453.41 812 788 197.4
D 7 71 89636 450.11 812 788 197.4

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