ASTROSAT CZTI

Data Quality Report

Orbit 10009

Creation date: 2024-06-27T15:53:36.657348
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/AS1G07_002T02_9000001432_10009cztM0_level2.evt modeM0/AS1G07_002T02_9000001432_10009cztM0_level2_quad_clean.evt
Size (bytes)364,901,76059,973,120
Size348.0 MB 57.2 MB
Events in quadrant A2,535,180365,473
Events in quadrant B2,507,335371,321
Events in quadrant C2,374,055365,818
Events in quadrant D3,267,087336,737

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A014836
B014941
C014842
D014938

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0151353959
B0153394131
C0150724022
D0190005935

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5462851.556207%
B5436931.710817%
C5425540.995392%
D51221112.167122%

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 7882 6375 0 0 0.00% 0.00%
B 7883 6315 6 6 0.08% 0.10%
C 7883 6371 0 0 0.00% 0.00%
D 7883 6140 32 32 0.41% 0.52%

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 90369 683.69 632 616 131.3
A 0 226 5606 38.01 632 616 131.3
A 12 194 5202 34.93 632 616 131.3
B 4 81 33104 263.16 627 610 123.5
B 12 111 13971 108.21 627 610 123.5
B 4 173 13796 106.79 627 610 123.5
C 13 61 4522 27.49 607 608 142.4
C 8 222 2920 16.24 607 608 142.4
C 5 128 1692 7.61 607 608 142.4
D 1 52 477776 3272.92 569 555 145.8
D 8 195 413224 2830.2 569 555 145.8
D 10 118 75857 516.44 569 555 145.8

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