ASTROSAT CZTI

Data Quality Report

Orbit 14592

Creation date: 2024-06-27T16:57:15.597786
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_055T02_9000002148_14592cztM0_level2.evt modeM0/AS1G08_055T02_9000002148_14592cztM0_level2_quad_clean.evt
Size (bytes)711,786,24093,015,360
Size678.8 MB 88.7 MB
Events in quadrant A9,072,053567,871
Events in quadrant B3,455,095603,592
Events in quadrant C4,006,014589,629
Events in quadrant D4,556,587573,609

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0230

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0318283
B0147972
C0161202
D0182192

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A692172810.518711%
B6921741.069210%
C6921741.069210%
D69214696.776477%

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 9232 6925 60 60 0.65% 0.87%
B 9232 6925 0 0 0.00% 0.00%
C 9232 6925 0 0 0.00% 0.00%
D 9232 6924 302 302 3.27% 4.36%

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 5415211 31706.8 841 824 170.8
A 0 226 328478 1918.75 841 824 170.8
A 1 162 33218 189.7 841 824 170.8
B 0 189 22187 128.65 869 848 165.9
B 12 111 19886 114.78 869 848 165.9
B 11 111 16681 95.46 869 848 165.9
C 3 233 688065 3471.22 849 856 198.0
C 13 61 6016 26.06 849 856 198.0
C 8 222 4207 16.93 849 856 198.0
D 10 199 1314363 6774.35 814 794 193.9
D 2 136 43440 219.93 814 794 193.9
D 2 152 26080 130.41 814 794 193.9

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