ASTROSAT CZTI

Data Quality Report

Orbit 09406

Creation date: 2024-06-27T15:45:38.663788
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_044T09_9000001334_09406cztM0_level2.evt modeM0/AS1G07_044T09_9000001334_09406cztM0_level2_quad_clean.evt
Size (bytes)449,256,960105,664,320
Size428.4 MB 100.8 MB
Events in quadrant A3,540,151694,052
Events in quadrant B3,202,306700,082
Events in quadrant C3,039,117695,941
Events in quadrant D3,399,198673,622

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0146803
B0138722
C0131752
D0141522

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6251651.039834%
B6251440.703887%
C6251370.591905%
D6251761.215805%

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 7506 6252 11 11 0.15% 0.18%
B 7506 6252 0 0 0.00% 0.00%
C 7506 6252 0 0 0.00% 0.00%
D 7506 6252 27 27 0.36% 0.43%

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 8 5 427679 2698.65 786 771 158.2
A 5 16 48754 303.32 786 771 158.2
A 13 251 17905 108.31 786 771 158.2
B 0 214 67577 449.79 784 765 148.5
B 0 219 62577 416.13 784 765 148.5
B 0 187 33611 221.12 784 765 148.5
C 4 254 30850 171.75 769 773 175.1
C 13 61 5676 28.0 769 773 175.1
C 14 67 3137 13.5 769 773 175.1
D 1 52 139352 754.23 767 750 183.8
D 8 195 114591 619.48 767 750 183.8
D 12 227 97259 525.17 767 750 183.8

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