ASTROSAT CZTI

Data Quality Report

Orbit 47145

Creation date: 2024-06-27T23:32:14.746847
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_003T01_9000006298_47145cztM0_level2.fits modeM0/AS1C09_003T01_9000006298_47145cztM0_level2_quad_clean.evt
Size (bytes)583,450,560110,986,560
Size556.4 MB 105.8 MB
Events in quadrant A7,028,417743,886
Events in quadrant B3,626,293776,490
Events in quadrant C5,746,697655,605
Events in quadrant D4,633,112679,045

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0259070
B0157080
C0222600
D0189600

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A72544676.437827%
B72542443.363661%
C7255102514.128187%
D72553384.658856%

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 7254 7254 69 69 0.95% 0.95%
B 7254 7254 11 11 0.15% 0.15%
C 7255 7255 927 927 12.78% 12.78%
D 7255 7255 212 212 2.92% 2.92%

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 3670059 21864.26 806 789 167.8
A 15 235 181575 1077.26 806 789 167.8
A 13 248 17843 101.62 806 789 167.8
B 0 200 110051 685.7 805 779 159.4
B 0 198 83493 519.04 805 779 159.4
B 4 21 61108 378.57 805 779 159.4
C 15 208 2682276 15370.17 745 744 174.5
C 14 67 80207 455.47 745 744 174.5
C 14 254 64748 366.86 745 744 174.5
D 1 47 625004 3153.77 787 758 197.9
D 2 249 618590 3121.37 787 758 197.9
D 13 171 144140 724.38 787 758 197.9

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