ASTROSAT CZTI

Data Quality Report

Orbit 06903

Creation date: 2024-06-27T15:12:52.921229
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/AS1A02_005T01_9000000948_06903cztM0_level2.evt modeM0/AS1A02_005T01_9000000948_06903cztM0_level2_quad_clean.evt
Size (bytes)479,361,60069,952,320
Size457.2 MB 66.7 MB
Events in quadrant A3,384,802420,260
Events in quadrant B3,742,476421,912
Events in quadrant C3,325,676417,267
Events in quadrant D3,620,500402,470

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141043
B0154342
C0138792
D0148462

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65421011.543870%
B65421271.941302%
C6542861.314583%
D65431161.772887%

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 7817 6543 0 0 0.00% 0.00%
B 7817 6543 16 16 0.20% 0.24%
C 7817 6543 1 1 0.01% 0.02%
D 7818 6544 21 21 0.27% 0.32%

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 43516 247.99 859 839 172.1
A 13 14 30945 174.94 859 839 172.1
A 0 226 8391 43.88 859 839 172.1
B 4 48 170322 1057.73 853 835 160.2
B 0 214 78443 484.33 853 835 160.2
B 0 219 56308 346.19 853 835 160.2
C 9 247 54104 281.64 830 835 189.1
C 9 54 17376 87.45 830 835 189.1
C 12 4 10575 51.5 830 835 189.1
D 2 216 179771 879.41 838 814 203.5
D 8 195 62017 300.76 838 814 203.5
D 5 97 51447 248.81 838 814 203.5

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