ASTROSAT CZTI

Data Quality Report

Orbit 05196

Creation date: 2024-06-27T14:52:30.720909
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_104T01_9000000656_05196cztM0_level2.evt modeM0/AS1G05_104T01_9000000656_05196cztM0_level2_quad_clean.evt
Size (bytes)435,839,04095,892,480
Size415.6 MB 91.5 MB
Events in quadrant A3,006,548620,146
Events in quadrant B3,015,630630,656
Events in quadrant C2,978,735626,427
Events in quadrant D3,774,259591,307

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0129613
B0128842
C0128192
D0153742

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6244500.800769%
B6244450.720692%
C6244350.560538%
D62441151.841768%

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 6245 8 8 0.11% 0.13%
B 7529 6245 0 0 0.00% 0.00%
C 7529 6245 0 0 0.00% 0.00%
D 7529 6245 94 94 1.25% 1.51%

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 0 50 45104 291.87 759 743 152.0
A 0 247 19641 124.34 759 743 152.0
A 4 2 12203 75.4 759 743 152.0
B 0 219 12430 81.89 769 752 142.6
B 12 111 12372 81.49 769 752 142.6
B 4 80 12274 80.8 769 752 142.6
C 1 16 32587 187.82 749 752 169.5
C 14 67 16391 92.27 749 752 169.5
C 12 4 7443 39.48 749 752 169.5
D 7 237 454838 2547.71 741 720 178.2
D 2 63 239447 1339.31 741 720 178.2
D 2 136 102578 571.45 741 720 178.2

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