ASTROSAT CZTI

Data Quality Report

Orbit 13648

Creation date: 2024-06-27T16:44:01.118301
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/AS1G08_083T03_9000002022_13648cztM0_level2.evt modeM0/AS1G08_083T03_9000002022_13648cztM0_level2_quad_clean.evt
Size (bytes)448,983,36076,020,480
Size428.2 MB 72.5 MB
Events in quadrant A3,150,385469,160
Events in quadrant B3,401,941483,206
Events in quadrant C3,345,015472,043
Events in quadrant D3,284,559450,327

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0129223
B0137922
C0135622
D0134452

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0180

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6121330.539128%
B6121550.898546%
C6121350.571802%
D6121400.653488%

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 7472 6123 0 0 0.00% 0.00%
B 7472 6123 6 6 0.08% 0.10%
C 7472 6123 0 0 0.00% 0.00%
D 7472 6123 9 9 0.12% 0.15%

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 1 162 9328 52.21 816 801 163.3
A 0 226 7339 40.03 816 801 163.3
A 12 194 6145 32.72 816 801 163.3
B 0 219 141704 927.41 825 809 151.9
B 12 111 17046 106.88 825 809 151.9
B 11 111 14544 90.41 825 809 151.9
C 3 233 185680 1006.67 808 817 183.6
C 13 61 5913 27.75 808 817 183.6
C 14 234 4227 18.57 808 817 183.6
D 8 195 161917 856.07 795 774 188.2
D 13 249 52131 272.83 795 774 188.2
D 2 136 41178 214.65 795 774 188.2

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