ASTROSAT CZTI

Data Quality Report

Orbit 09103

Creation date: 2024-06-27T15:41:10.275831
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/AS1A03_120T01_9000001266_09103cztM0_level2.evt modeM0/AS1A03_120T01_9000001266_09103cztM0_level2_quad_clean.evt
Size (bytes)492,828,48086,895,360
Size470.0 MB 82.9 MB
Events in quadrant A3,688,695547,396
Events in quadrant B3,481,482564,019
Events in quadrant C3,354,037536,127
Events in quadrant D3,941,358511,779

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01509619
B0144756
C01438012
D01617628

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6777620.914859%
B6781711.047043%
C6779781.150612%
D67751682.479705%

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 56367 6785 6 6 0.01% 0.09%
B 56367 6785 5 5 0.01% 0.07%
C 56367 6785 39 39 0.07% 0.57%
D 56367 6785 117 117 0.21% 1.72%

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 360454 2086.13 848 833 172.4
A 4 2 27558 155.03 848 833 172.4
A 1 162 18927 104.96 848 833 172.4
B 0 198 69055 426.18 857 838 160.1
B 0 187 23427 141.12 857 838 160.1
B 0 214 19542 116.85 857 838 160.1
C 14 234 136152 719.35 817 825 188.1
C 9 68 17931 90.93 817 825 188.1
C 14 67 13812 69.03 817 825 188.1
D 2 14 241862 1169.86 803 783 206.1
D 13 104 179474 867.12 803 783 206.1
D 10 172 153660 741.85 803 783 206.1

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