ASTROSAT CZTI

Data Quality Report

Orbit 08485

Creation date: 2024-06-27T15:33:20.993350
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/AS1G07_007T01_9000001196_08485cztM0_level2.evt modeM0/AS1G07_007T01_9000001196_08485cztM0_level2_quad_clean.evt
Size (bytes)588,769,92083,531,520
Size561.5 MB 79.7 MB
Events in quadrant A6,347,239496,982
Events in quadrant B3,999,451512,205
Events in quadrant C3,367,102512,035
Events in quadrant D3,617,503495,556

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0239152
B0164401
C0151451
D0159491

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A736797613.248269%
B73673234.384417%
C73671522.063255%
D73672313.135605%

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 7647 7366 543 543 7.10% 7.37%
B 7648 7367 74 74 0.97% 1.00%
C 7648 7369 0 0 0.00% 0.00%
D 7648 7369 37 37 0.48% 0.50%

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 5 16 2448714 14155.56 847 829 172.9
A 15 236 577875 3336.93 847 829 172.9
A 13 248 34636 195.5 847 829 172.9
B 4 81 211775 1231.89 884 861 171.2
B 11 51 126373 733.08 884 861 171.2
B 5 255 82115 474.58 884 861 171.2
C 13 61 6360 27.35 862 864 200.9
C 8 222 4715 19.17 862 864 200.9
C 3 202 2138 6.34 862 864 200.9
D 7 71 130541 599.8 858 834 216.2
D 12 233 76837 351.46 858 834 216.2
D 2 152 57345 261.32 858 834 216.2

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