ASTROSAT CZTI

Data Quality Report

Orbit 03496

Creation date: 2024-06-27T14:30:08.529051
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_245T01_9000000460_03496cztM0_level2.evt modeM0/AS1G05_245T01_9000000460_03496cztM0_level2_quad_clean.evt
Size (bytes)30,588,4806,059,520
Size29.2 MB 5.8 MB
Events in quadrant A216,16036,615
Events in quadrant B232,08737,178
Events in quadrant C227,75438,109
Events in quadrant D222,14837,548

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A08900
B09210
C09310
D09220

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3609325.833333%
B3609426.111111%
C3607420.555556%
D3606818.888889%

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 359 359 0 0 0.00% 0.00%
B 359 359 1 1 0.28% 0.28%
C 360 360 0 0 0.00% 0.00%
D 360 360 1 1 0.28% 0.28%

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 8 15 1132 76.54 55 53 14.1
A 0 118 910 60.79 55 53 14.1
A 0 226 578 37.24 55 53 14.1
B 4 81 14297 1012.01 55 53 14.1
B 0 228 1712 117.87 55 53 14.1
B 12 111 984 66.15 55 53 14.1
C 1 192 3837 240.88 55 55 15.7
C 9 54 3088 193.18 55 55 15.7
C 15 208 2697 168.27 55 55 15.7
D 13 223 8914 544.1 56 53 16.3
D 2 14 960 55.69 56 53 16.3
D 2 31 741 42.25 56 53 16.3

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
Veto Counter