ASTROSAT CZTI

Data Quality Report

Orbit 10693

Creation date: 2024-06-27T16:02:31.485751
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_097T01_9000001540_10693cztM0_level2.evt modeM0/AS1A03_097T01_9000001540_10693cztM0_level2_quad_clean.evt
Size (bytes)497,062,08089,732,160
Size474.0 MB 85.6 MB
Events in quadrant A2,790,414595,781
Events in quadrant B3,642,345595,851
Events in quadrant C2,592,423591,311
Events in quadrant D5,641,118535,027

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0121562
B0145711
C0117241
D0207501

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5711751.313255%
B57112464.307477%
C5711440.770443%
D57115419.472947%

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 6796 5711 3 3 0.04% 0.05%
B 6796 5711 122 122 1.80% 2.14%
C 6796 5711 1 1 0.01% 0.02%
D 6796 5711 453 453 6.67% 7.93%

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 68472 490.66 680 666 138.2
A 15 174 49172 351.0 680 666 138.2
A 1 162 20494 143.48 680 666 138.2
B 4 239 866475 6801.09 671 656 127.3
B 0 214 46325 358.73 671 656 127.3
B 0 219 25621 196.1 671 656 127.3
C 14 234 17520 110.06 660 663 153.2
C 13 61 4859 27.4 660 663 153.2
C 8 222 2068 9.17 660 663 153.2
D 2 16 1505455 9821.95 637 620 153.2
D 1 52 566147 3691.15 637 620 153.2
D 10 199 562698 3668.64 637 620 153.2

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