ASTROSAT CZTI

Data Quality Report

Orbit 30369

Creation date: 2024-06-27T20:14:22.980181
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/AS1A10_053T17_9000004366_30369cztM0_level2.evt modeM0/AS1A10_053T17_9000004366_30369cztM0_level2_quad_clean.evt
Size (bytes)579,628,80075,415,680
Size552.8 MB 71.9 MB
Events in quadrant A3,613,784475,499
Events in quadrant B5,204,877479,636
Events in quadrant C4,788,879445,564
Events in quadrant D3,530,036452,614

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0144932
B0191343
C0186482
D0143652

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0180
C0180
D0180

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A61601472.386364%
B61591432.321805%
C61592904.708557%
D6159570.925475%

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 7500 6160 48 48 0.64% 0.78%
B 7499 6159 0 0 0.00% 0.00%
C 7499 6160 39 39 0.52% 0.63%
D 7499 6160 22 22 0.29% 0.36%

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 13 195742 1140.04 877 865 170.9
A 8 192 20668 115.85 877 865 170.9
A 13 254 11949 64.84 877 865 170.9
B 6 159 1754882 10893.62 875 860 161.0
B 12 111 18695 110.77 875 860 161.0
B 11 111 17453 103.05 875 860 161.0
C 3 233 1350699 7073.76 834 843 190.8
C 14 238 139324 725.69 834 843 190.8
C 0 10 33273 169.95 834 843 190.8
D 8 195 133742 642.85 842 826 206.8
D 2 250 65439 312.5 842 826 206.8
D 1 52 57713 275.13 842 826 206.8

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