ASTROSAT CZTI

Data Quality Report

Orbit 01314

Creation date: 2024-06-27T14:10:50.496071
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/AS1G04_002T02_9000000230_01314cztM0_level2.evt modeM0/AS1G04_002T02_9000000230_01314cztM0_level2_quad_clean.evt
Size (bytes)1,208,787,84097,323,840
Size1.1 GB 92.8 MB
Events in quadrant A7,829,838645,452
Events in quadrant B8,126,364650,316
Events in quadrant C7,697,452640,390
Events in quadrant D12,530,987563,126

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0278223
B0286852
C0274332
D0419802

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6415460.717069%
B6415230.358535%
C6415140.218239%
D6415157024.473889%

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 7525 6416 270 270 3.59% 4.21%
B 7525 6416 329 329 4.37% 5.13%
C 7525 6415 188 188 2.50% 2.93%
D 7524 6414 2789 2789 37.07% 43.48%

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 4 32 452381 983.92 1915 1925 457.8
A 0 128 16926 32.77 1915 1925 457.8
A 11 79 7142 11.4 1915 1925 457.8
B 8 4 269665 568.74 2015 2017 470.6
B 12 52 69540 143.48 2015 2017 470.6
B 0 220 36099 72.42 2015 2017 470.6
C 15 241 315285 604.23 1861 1929 518.6
C 9 52 44855 82.77 1861 1929 518.6
C 3 9 30695 55.47 1861 1929 518.6
D 10 84 5779212 11158.43 1674 1738 517.8
D 12 22 203537 389.75 1674 1738 517.8
D 15 13 132212 251.99 1674 1738 517.8

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