ASTROSAT CZTI

Data Quality Report

Orbit 07304

Creation date: 2024-06-27T15:18:15.404809
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/AS1G06_137T02_9000001002_07304cztM0_level2.evt modeM0/AS1G06_137T02_9000001002_07304cztM0_level2_quad_clean.evt
Size (bytes)469,690,56068,310,720
Size447.9 MB 65.1 MB
Events in quadrant A3,401,029399,572
Events in quadrant B3,316,065404,540
Events in quadrant C3,138,618403,017
Events in quadrant D3,910,607391,058

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0146123
B0144582
C0138502
D0164922

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6748741.096621%
B6748660.978068%
C6748520.770599%
D67481452.148785%

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 7708 6748 7 7 0.09% 0.10%
B 7708 6748 6 6 0.08% 0.09%
C 7708 6748 2 2 0.03% 0.03%
D 7708 6748 50 50 0.65% 0.74%

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 15 234 106480 641.66 810 793 164.7
A 8 15 93710 564.13 810 793 164.7
A 14 111 39584 235.51 810 793 164.7
B 0 214 103591 660.17 814 796 155.7
B 4 81 26726 166.53 814 796 155.7
B 12 111 15469 94.23 814 796 155.7
C 1 16 19496 101.09 791 795 185.0
C 8 128 13552 68.96 791 795 185.0
C 9 68 10940 54.84 791 795 185.0
D 2 216 563293 2883.87 789 765 195.1
D 2 33 105258 535.7 789 765 195.1
D 1 20 81862 415.75 789 765 195.1

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