ASTROSAT CZTI

Data Quality Report

Orbit 18352

Creation date: 2024-06-27T17:48:42.853929
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/AS1A06_006T01_9000002720_18352cztM0_level2.evt modeM0/AS1A06_006T01_9000002720_18352cztM0_level2_quad_clean.evt
Size (bytes)461,684,16070,738,560
Size440.3 MB 67.5 MB
Events in quadrant A3,177,744430,782
Events in quadrant B3,421,653438,718
Events in quadrant C3,450,714420,799
Events in quadrant D3,502,747410,479

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131301
B0139121
C0139561
D0143311

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6321200.316406%
B6321480.759374%
C63221201.898134%
D6322550.869978%

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 7591 6322 0 0 0.00% 0.00%
B 7591 6322 5 5 0.07% 0.08%
C 7592 6323 32 32 0.42% 0.51%
D 7592 6323 16 16 0.21% 0.25%

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 15 174 18111 104.74 819 803 165.2
A 4 2 12009 67.82 819 803 165.2
A 0 226 7217 38.82 819 803 165.2
B 7 220 88466 562.77 829 810 155.8
B 4 48 41540 261.49 829 810 155.8
B 0 189 26049 162.04 829 810 155.8
C 4 254 143562 789.62 788 796 180.8
C 14 238 123700 679.77 788 796 180.8
C 0 207 101200 555.32 788 796 180.8
D 1 52 361429 1863.59 795 775 193.5
D 13 104 37761 191.12 795 775 193.5
D 2 234 29527 148.57 795 775 193.5

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