ASTROSAT CZTI

Data Quality Report

Orbit 03636

Creation date: 2024-06-27T14:31:49.120989
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/AS1G05_234T02_9000000474_03636cztM0_level2.evt modeM0/AS1G05_234T02_9000000474_03636cztM0_level2_quad_clean.evt
Size (bytes)462,375,36083,721,600
Size441.0 MB 79.8 MB
Events in quadrant A3,166,076520,571
Events in quadrant B3,910,252514,067
Events in quadrant C3,134,729515,036
Events in quadrant D3,319,068500,636

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D090

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0144373
B0164792
C0143812
D0150022

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6959400.574795%
B6959731.049001%
C6959170.244288%
D6959670.962782%

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 7599 6960 2 2 0.03% 0.03%
B 7599 6960 7 7 0.09% 0.10%
C 7599 6960 0 0 0.00% 0.00%
D 7599 6960 48 48 0.63% 0.69%

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 7 16 54978 332.53 789 770 163.0
A 0 50 22666 134.32 789 770 163.0
A 8 160 14224 82.53 789 770 163.0
B 15 204 483999 3136.17 796 775 154.1
B 5 172 57930 370.94 796 775 154.1
B 4 81 57583 368.69 796 775 154.1
C 2 53 69731 379.75 774 778 181.6
C 9 247 18200 95.95 774 778 181.6
C 1 16 10327 52.59 774 778 181.6
D 13 46 154029 821.11 770 747 186.7
D 2 37 49013 258.55 770 747 186.7
D 13 239 36643 192.29 770 747 186.7

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
Veto Counter