ASTROSAT CZTI

Data Quality Report

Orbit 06008

Creation date: 2024-06-27T15:01:44.366286
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/AS1G06_086T01_9000000774_06008cztM0_level2.evt modeM0/AS1G06_086T01_9000000774_06008cztM0_level2_quad_clean.evt
Size (bytes)599,768,640123,975,360
Size572.0 MB 118.2 MB
Events in quadrant A3,169,099869,465
Events in quadrant B4,333,425873,021
Events in quadrant C7,084,157693,655
Events in quadrant D3,096,747824,762

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0146493
B0178142
C0260882
D0147202

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7080570.805085%
B70803785.338983%
C7080170824.124294%
D7080470.663842%

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 9465 7082 0 0 0.00% 0.00%
B 9465 7081 156 156 1.65% 2.20%
C 9465 7081 1636 1636 17.28% 23.10%
D 9465 7082 11 11 0.12% 0.16%

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 15 234 20202 117.75 814 795 164.8
A 0 226 7906 43.14 814 795 164.8
A 12 194 7866 42.9 814 795 164.8
B 3 64 888044 5718.41 816 794 155.2
B 15 204 94446 603.59 816 794 155.2
B 0 214 88600 565.91 816 794 155.2
C 1 241 4529455 30401.08 645 650 149.0
C 1 16 21896 142.62 645 650 149.0
C 14 206 9791 61.36 645 650 149.0
D 2 14 34623 174.73 788 762 193.8
D 8 195 19770 98.08 788 762 193.8
D 2 206 15996 78.61 788 762 193.8

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