ASTROSAT CZTI

Data Quality Report

Orbit 06469

Creation date: 2024-06-27T15:07:37.809580
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_139T02_9000000862_06469cztM0_level2.evt modeM0/AS1G06_139T02_9000000862_06469cztM0_level2_quad_clean.evt
Size (bytes)466,058,88067,429,440
Size444.5 MB 64.3 MB
Events in quadrant A3,612,544401,553
Events in quadrant B3,346,319410,177
Events in quadrant C3,415,834396,409
Events in quadrant D3,298,580380,142

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0148323
B0137942
C0143482
D0139252

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6499570.877058%
B6499661.015541%
C6499520.800123%
D6499580.892445%

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 7814 6500 0 0 0.00% 0.00%
B 7814 6500 3 3 0.04% 0.05%
C 7814 6500 0 0 0.00% 0.00%
D 7814 6500 5 5 0.06% 0.08%

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 15 236 393663 2366.82 828 812 166.0
A 8 15 22958 133.42 828 812 166.0
A 10 133 10803 60.19 828 812 166.0
B 15 204 40222 248.45 842 825 158.6
B 12 111 15734 94.02 842 825 158.6
B 11 111 12336 72.59 842 825 158.6
C 1 16 262246 1409.47 804 810 185.5
C 12 4 10996 54.92 804 810 185.5
C 13 61 6437 30.34 804 810 185.5
D 8 195 138299 696.55 801 775 197.4
D 2 152 73527 368.48 801 775 197.4
D 2 63 21227 103.59 801 775 197.4

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