ASTROSAT CZTI

Data Quality Report

Orbit 09116

Creation date: 2024-06-27T15:41:29.299822
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/AS1A03_105T01_9000001268_09116cztM0_level2.evt modeM0/AS1A03_105T01_9000001268_09116cztM0_level2_quad_clean.evt
Size (bytes)450,144,00086,149,440
Size429.3 MB 82.2 MB
Events in quadrant A3,970,146541,024
Events in quadrant B3,185,061557,242
Events in quadrant C2,989,803541,874
Events in quadrant D3,056,120525,571

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160303
B0135492
C0131744
D0134542

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0230

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6353841.322210%
B6353661.038879%
C6352280.440806%
D6353470.739808%

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 8653 6354 28 28 0.32% 0.44%
B 8653 6354 14 14 0.16% 0.22%
C 8653 6355 0 0 0.00% 0.00%
D 8653 6355 15 15 0.17% 0.24%

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 8 5 645083 4093.92 780 767 157.4
A 4 2 213251 1350.1 780 767 157.4
A 1 162 38005 236.61 780 767 157.4
B 0 214 101105 670.48 790 772 149.6
B 12 111 17058 108.83 790 772 149.6
B 11 111 13607 85.77 790 772 149.6
C 13 61 5757 27.98 764 768 178.3
C 12 4 4639 21.71 764 768 178.3
C 10 22 3533 15.51 764 768 178.3
D 1 52 71306 377.25 758 740 187.1
D 2 14 68442 361.94 758 740 187.1
D 2 234 21992 113.61 758 740 187.1

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