ASTROSAT CZTI

Data Quality Report

Orbit 16138

Creation date: 2024-06-27T17:18:32.264360
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/AS1T02_092T01_9000002384_16138cztM0_level2.evt modeM0/AS1T02_092T01_9000002384_16138cztM0_level2_quad_clean.evt
Size (bytes)555,624,000108,345,600
Size529.9 MB 103.3 MB
Events in quadrant A3,809,128748,687
Events in quadrant B3,518,133750,702
Events in quadrant C3,209,757696,279
Events in quadrant D5,868,027650,723

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0152652
B0143401
C0133321
D0215731

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62311862.985075%
B62311241.990050%
C62311101.765367%
D623177412.421762%

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 7487 6233 85 85 1.14% 1.36%
B 7487 6233 9 9 0.12% 0.14%
C 7487 6233 2 2 0.03% 0.03%
D 7487 6233 631 631 8.43% 10.12%

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 9 143 299071 1796.36 838 825 166.0
A 15 174 181470 1088.04 838 825 166.0
A 0 253 58249 345.87 838 825 166.0
B 0 189 74868 476.12 828 810 155.5
B 5 65 53398 338.09 828 810 155.5
B 3 209 37513 235.97 828 810 155.5
C 14 238 124254 687.07 779 787 179.7
C 0 207 31682 171.92 779 787 179.7
C 3 9 10670 55.0 779 787 179.7
D 1 52 2800332 15043.05 772 750 186.1
D 7 38 70677 375.74 772 750 186.1
D 15 0 33253 174.65 772 750 186.1

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