ASTROSAT CZTI

Data Quality Report

Orbit 05387

Creation date: 2024-06-27T14:54:37.677313
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/AS1G05_214T01_9000000684_05387cztM0_level2.evt modeM0/AS1G05_214T01_9000000684_05387cztM0_level2_quad_clean.evt
Size (bytes)804,015,36074,206,080
Size766.8 MB 70.8 MB
Events in quadrant A3,507,596452,441
Events in quadrant B3,572,423456,003
Events in quadrant C3,926,220451,568
Events in quadrant D12,850,584376,904

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0170

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0155023
B0154852
C0162252
D0432152

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A73161401.913614%
B73161401.913614%
C7316710.970476%
D7316146820.065610%

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 9026 7318 18 18 0.20% 0.25%
B 9026 7318 2 2 0.02% 0.03%
C 9026 7318 0 0 0.00% 0.00%
D 9026 7318 1652 1652 18.30% 22.57%

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 0 50 55715 303.99 879 858 180.5
A 15 174 47374 257.77 879 858 180.5
A 13 6 17680 93.22 879 858 180.5
B 4 81 25505 141.73 893 869 173.8
B 15 204 24766 137.48 893 869 173.8
B 0 187 23901 132.5 893 869 173.8
C 1 16 571960 2846.82 858 861 200.6
C 13 61 6912 30.16 858 861 200.6
C 12 4 4373 17.51 858 861 200.6
D 7 237 9510633 47553.39 806 781 200.0
D 2 63 212872 1060.55 806 781 200.0
D 8 195 28374 137.98 806 781 200.0

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