ASTROSAT CZTI

Data Quality Report

Orbit 47559

Creation date: 2024-07-15T12:33:35.335234
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/AS1C09_002T01_9000006334_47559cztM0_level2.fits modeM0/AS1C09_002T01_9000006334_47559cztM0_level2_quad_clean.evt
Size (bytes)1,130,520,960271,229,760
Size1.1 GB 258.7 MB
Events in quadrant A17,403,0701,752,840
Events in quadrant B7,876,7451,843,971
Events in quadrant C7,295,1061,797,693
Events in quadrant D7,953,7271,640,304

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0644867
B0351155
C03466811
D0361523

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0250
B0250
C0250
D0250

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03500
B03500
C03500
D03500

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A170645853.428270%
B170641570.920066%
C170621260.738483%
D170661831.072308%

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 19610 17065 106 106 0.54% 0.62%
B 19610 17066 14 14 0.07% 0.08%
C 19611 17067 13 13 0.07% 0.08%
D 19611 17066 62 62 0.32% 0.36%

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 10 83 9417579 24665.99 1858 1817 381.7
A 9 191 658484 1720.24 1858 1817 381.7
A 7 3 112765 290.64 1858 1817 381.7
B 0 200 159406 433.97 1861 1801 363.2
B 0 198 116178 314.94 1861 1801 363.2
B 0 190 90565 244.42 1861 1801 363.2
C 1 3 58031 130.02 1848 1855 432.1
C 3 233 21159 44.68 1848 1855 432.1
C 14 254 17713 36.7 1848 1855 432.1
D 12 233 162731 349.44 1857 1797 460.5
D 7 55 133822 286.67 1857 1797 460.5
D 11 192 91625 195.05 1857 1797 460.5

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