ASTROSAT CZTI

Data Quality Report

Orbit 29455

Creation date: 2024-06-27T20:04:17.385967
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/AS1A10_094T02_9000004238_29455cztM0_level2.evt modeM0/AS1A10_094T02_9000004238_29455cztM0_level2_quad_clean.evt
Size (bytes)90,889,92017,919,360
Size86.7 MB 17.1 MB
Events in quadrant A491,338126,419
Events in quadrant B432,155133,603
Events in quadrant C442,623125,628
Events in quadrant D1,337,392101,306

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A019860
B017790
C018840
D044500

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A68791.310044%
B68720.291121%
C687152.183406%
D68825937.645349%

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 687 687 7 7 1.02% 1.02%
B 687 687 0 0 0.00% 0.00%
C 687 687 0 0 0.00% 0.00%
D 688 688 264 264 38.37% 38.37%

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 13 89833 4001.56 104 102 22.4
A 13 254 1414 58.51 104 102 22.4
A 0 226 869 34.2 104 102 22.4
B 5 255 12542 575.98 107 105 21.6
B 12 111 2210 97.49 107 105 21.6
B 11 111 1909 83.55 107 105 21.6
C 14 238 22233 864.13 103 104 25.6
C 3 233 7870 303.26 103 104 25.6
C 14 254 6071 233.01 103 104 25.6
D 8 195 700372 29940.21 91 89 23.4
D 1 52 190075 8122.75 91 89 23.4
D 13 153 70902 3027.57 91 89 23.4

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