ASTROSAT CZTI

Data Quality Report

Orbit 10606

Creation date: 2024-06-27T16:01:23.645054
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/AS1T01_191T01_9000001536_10606cztM0_level2.evt modeM0/AS1T01_191T01_9000001536_10606cztM0_level2_quad_clean.evt
Size (bytes)439,372,80083,871,360
Size419.0 MB 80.0 MB
Events in quadrant A2,720,929555,232
Events in quadrant B4,147,331525,824
Events in quadrant C2,517,183549,715
Events in quadrant D3,543,649520,311

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01140
B01140
C01140
D01140

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01181614
B0159897
C0114231
D0144085

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5547260.468722%
B55514177.512160%
C5553180.324149%
D5552410.738473%

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 6668 5553 0 0 0.00% 0.00%
B 6668 5554 290 290 4.35% 5.22%
C 6668 5554 3 3 0.04% 0.05%
D 6668 5554 14 14 0.21% 0.25%

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 1 162 73157 523.83 665 653 138.4
A 1 178 30312 214.28 665 653 138.4
A 1 161 27213 191.89 665 653 138.4
B 4 239 1305956 10419.65 649 635 125.3
B 0 219 139452 1108.1 649 635 125.3
B 11 51 112344 891.71 649 635 125.3
C 0 207 9236 57.64 638 646 149.0
C 14 234 8038 49.6 638 646 149.0
C 13 61 4896 28.52 638 646 149.0
D 2 16 371949 2401.69 631 616 154.6
D 1 52 304048 1962.53 631 616 154.6
D 8 195 252136 1626.77 631 616 154.6

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