ASTROSAT CZTI

Data Quality Report

Orbit 13759

Creation date: 2024-06-27T16:45:42.222432
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/AS1G08_062T01_9000002038_13759cztM0_level2.evt modeM0/AS1G08_062T01_9000002038_13759cztM0_level2_quad_clean.evt
Size (bytes)495,751,68082,347,840
Size472.8 MB 78.5 MB
Events in quadrant A3,638,443501,178
Events in quadrant B3,697,870490,998
Events in quadrant C3,386,620518,631
Events in quadrant D3,820,164499,566

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0152373
B0153692
C0142412
D0157852

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6931791.139807%
B6931781.125379%
C6931450.649257%
D6931951.370654%

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 7782 6933 15 15 0.19% 0.22%
B 7782 6932 7 7 0.09% 0.10%
C 7782 6933 0 0 0.00% 0.00%
D 7782 6933 52 52 0.67% 0.75%

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 23 247318 1407.17 858 839 175.2
A 9 143 37275 208.02 858 839 175.2
A 0 226 23687 130.44 858 839 175.2
B 0 219 186500 1138.33 854 834 163.1
B 3 64 38640 231.79 854 834 163.1
B 4 216 26311 156.2 854 834 163.1
C 3 233 100573 505.3 842 846 197.4
C 13 61 5993 26.08 842 846 197.4
C 12 4 2518 8.47 842 846 197.4
D 5 222 317901 1528.28 838 816 207.5
D 10 157 135658 649.91 838 816 207.5
D 8 195 105727 505.65 838 816 207.5

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