ASTROSAT CZTI

Data Quality Report

Orbit 11813

Creation date: 2024-06-27T16:18:38.075015
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/AS1A04_022T04_9000001746_11813cztM0_level2.evt modeM0/AS1A04_022T04_9000001746_11813cztM0_level2_quad_clean.evt
Size (bytes)482,437,44071,844,480
Size460.1 MB 68.5 MB
Events in quadrant A3,322,012428,974
Events in quadrant B3,919,234425,557
Events in quadrant C3,143,154432,609
Events in quadrant D3,762,775412,703

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0150

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143113
B0159592
C0140502
D0159872

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A68231121.641507%
B68232543.722703%
C6823620.908691%
D68232203.224388%

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 7779 6825 1 1 0.01% 0.01%
B 7779 6825 90 90 1.16% 1.32%
C 7779 6825 0 0 0.00% 0.00%
D 7779 6825 140 140 1.80% 2.05%

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 1 162 70847 420.57 818 800 166.6
A 1 178 34745 203.81 818 800 166.6
A 1 161 30487 178.25 818 800 166.6
B 4 239 429460 2753.61 819 799 155.7
B 10 16 96467 614.55 819 799 155.7
B 15 185 45319 285.99 819 799 155.7
C 1 16 6754 31.93 803 807 186.2
C 13 61 5775 26.67 803 807 186.2
C 8 208 3269 13.22 803 807 186.2
D 10 199 406048 2127.82 786 764 190.5
D 1 52 146626 765.8 786 764 190.5
D 8 195 96812 504.27 786 764 190.5

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