ASTROSAT CZTI

Data Quality Report

Orbit 05325

Creation date: 2024-06-27T14:53:54.466156
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_240T01_9000000674_05325cztM0_level2.evt modeM0/AS1G05_240T01_9000000674_05325cztM0_level2_quad_clean.evt
Size (bytes)418,953,60088,963,200
Size399.5 MB 84.8 MB
Events in quadrant A3,004,519571,468
Events in quadrant B3,116,589591,826
Events in quadrant C2,910,432567,402
Events in quadrant D3,233,875529,538

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0129313
B0133642
C0127662
D0139862

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0150

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6209270.434853%
B6209480.773071%
C6209110.177162%
D6209701.127396%

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 7529 6210 0 0 0.00% 0.00%
B 7529 6210 7 7 0.09% 0.11%
C 7529 6210 0 0 0.00% 0.00%
D 7529 6210 66 66 0.88% 1.06%

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 14 111 72020 464.97 754 738 153.3
A 13 251 15531 96.49 754 738 153.3
A 0 50 12950 79.66 754 738 153.3
B 10 16 37059 250.86 773 757 144.7
B 15 54 24867 166.61 773 757 144.7
B 15 204 21563 143.78 773 757 144.7
C 1 16 22683 128.97 738 743 170.1
C 13 61 5966 30.7 738 743 170.1
C 14 67 5713 29.22 738 743 170.1
D 2 16 332878 1865.49 726 706 178.1
D 2 234 44510 246.01 726 706 178.1
D 2 14 42889 236.9 726 706 178.1

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