ASTROSAT CZTI

Data Quality Report

Orbit 14695

Creation date: 2024-06-27T16:58:35.175533
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/AS1A04_011T07_9000002172_14695cztM0_level2.evt modeM0/AS1A04_011T07_9000002172_14695cztM0_level2_quad_clean.evt
Size (bytes)545,486,400103,993,920
Size520.2 MB 99.2 MB
Events in quadrant A3,796,151674,267
Events in quadrant B3,655,102666,428
Events in quadrant C4,396,242655,205
Events in quadrant D4,175,535643,326

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0159543
B0156442
C0178152
D0176092

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D040

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7324590.805571%
B7324680.928454%
C7324610.832878%
D73242273.099399%

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 7680 7327 0 0 0.00% 0.00%
B 7680 7326 16 16 0.21% 0.22%
C 7680 7326 4 4 0.05% 0.05%
D 7680 7327 217 217 2.83% 2.96%

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 15 292344 1602.07 888 866 181.9
A 12 189 42665 229.74 888 866 181.9
A 1 162 23526 124.55 888 866 181.9
B 0 229 117567 685.93 881 859 170.1
B 0 197 21577 121.77 881 859 170.1
B 0 214 20015 112.59 881 859 170.1
C 3 233 1009295 5080.67 850 854 198.5
C 0 207 47959 237.32 850 854 198.5
C 8 128 11378 53.02 850 854 198.5
D 12 110 706595 3274.55 848 825 215.5
D 1 52 88646 407.46 848 825 215.5
D 9 1 41255 187.58 848 825 215.5

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