ASTROSAT CZTI

Data Quality Report

Orbit 47752

Creation date: 2024-07-27T16:47:06.600821
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/AS1C09_004T04_9000006346_47752cztM0_level2.fits modeM0/AS1C09_004T04_9000006346_47752cztM0_level2_quad_clean.evt
Size (bytes)471,764,160108,095,040
Size449.9 MB 103.1 MB
Events in quadrant A6,929,055717,736
Events in quadrant B3,818,807735,908
Events in quadrant C3,040,351705,092
Events in quadrant D3,165,799656,942

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0259812
B0156812
C0138742
D0141592

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65602994.557927%
B65611582.408169%
C6561861.310776%
D65611111.691815%

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 7580 6561 7 7 0.09% 0.11%
B 7581 6562 34 34 0.45% 0.52%
C 7581 6562 15 15 0.20% 0.23%
D 7581 6562 46 46 0.61% 0.70%

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 10 83 3978943 26256.67 733 716 151.5
A 9 191 56218 366.32 733 716 151.5
A 13 248 52373 340.94 733 716 151.5
B 12 48 488664 3429.1 730 707 142.3
B 0 200 185329 1297.42 730 707 142.3
B 5 255 78210 544.65 730 707 142.3
C 12 2 132135 782.18 719 722 168.0
C 14 254 88941 525.09 719 722 168.0
C 12 250 11749 65.63 719 722 168.0
D 1 232 157261 873.9 723 699 179.2
D 2 249 73594 406.89 723 699 179.2
D 8 176 42751 234.73 723 699 179.2

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