ASTROSAT CZTI

Data Quality Report

Orbit 10000

Creation date: 2024-06-27T15:53:29.495839
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_002T02_9000001432_10000cztM0_level2.evt modeM0/AS1G07_002T02_9000001432_10000cztM0_level2_quad_clean.evt
Size (bytes)505,938,24091,244,160
Size482.5 MB 87.0 MB
Events in quadrant A3,357,911587,888
Events in quadrant B3,298,682599,815
Events in quadrant C3,101,812590,455
Events in quadrant D5,140,364549,285

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141438
B0139796
C0133082
D01928027

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6247540.864415%
B6247831.328638%
C6249410.656105%
D62435438.697741%

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 7544 6249 0 0 0.00% 0.00%
B 7544 6249 9 9 0.12% 0.14%
C 7544 6249 0 0 0.00% 0.00%
D 7544 6249 454 454 6.02% 7.27%

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 15 248508 1540.09 801 787 160.8
A 14 111 22997 138.08 801 787 160.8
A 0 226 7254 40.2 801 787 160.8
B 4 239 75359 491.49 810 792 151.7
B 12 111 16307 102.26 810 792 151.7
B 0 214 14053 87.4 810 792 151.7
C 13 61 5672 26.47 795 801 184.0
C 14 234 2775 10.73 795 801 184.0
C 3 202 2080 6.95 795 801 184.0
D 12 233 1469078 7718.19 763 744 190.2
D 8 195 575978 3023.67 763 744 190.2
D 1 52 155934 815.74 763 744 190.2

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