ASTROSAT CZTI

Data Quality Report

Orbit 23954

Creation date: 2024-06-27T19:00:26.448013
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/AS1A07_101T02_9000003544_23954cztM0_level2.evt modeM0/AS1A07_101T02_9000003544_23954cztM0_level2_quad_clean.evt
Size (bytes)545,794,56089,328,960
Size520.5 MB 85.2 MB
Events in quadrant A3,253,996580,231
Events in quadrant B3,284,391588,967
Events in quadrant C3,278,285563,014
Events in quadrant D6,297,544545,088

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134491
B0134901
C0134311
D0231251

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6131671.092807%
B6131621.011254%
C6131991.614745%
D613183113.554069%

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 7366 6132 0 0 0.00% 0.00%
B 7366 6132 1 1 0.01% 0.02%
C 7366 6132 7 7 0.10% 0.11%
D 7366 6132 679 679 9.22% 11.07%

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 13 254 9524 52.15 842 826 166.8
A 0 226 7295 38.79 842 826 166.8
A 14 111 7084 37.52 842 826 166.8
B 12 111 18220 113.15 824 806 153.9
B 3 64 16412 101.4 824 806 153.9
B 11 111 15836 97.66 824 806 153.9
C 14 238 129398 704.01 795 803 182.7
C 0 10 44824 241.0 795 803 182.7
C 13 61 5476 25.58 795 803 182.7
D 12 218 2109183 11558.26 759 738 182.4
D 8 195 1036381 5677.28 759 738 182.4
D 2 82 206217 1126.41 759 738 182.4

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