ASTROSAT CZTI

Data Quality Report

Orbit 07322

Creation date: 2024-06-27T15:18:38.418473
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_164T01_9000001004_07322cztM0_level2.evt modeM0/AS1G06_164T01_9000001004_07322cztM0_level2_quad_clean.evt
Size (bytes)251,772,48040,118,400
Size240.1 MB 38.3 MB
Events in quadrant A1,943,808245,618
Events in quadrant B1,712,093246,339
Events in quadrant C1,517,043235,971
Events in quadrant D2,199,957225,728

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0740
B0740
C0740
D0740

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A083661
B076740
C073740
D090860

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3684471.275787%
B368470.190011%
C368400.000000%
D3684250.678610%

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 3684 3684 31 31 0.84% 0.84%
B 3684 3684 6 6 0.16% 0.16%
C 3684 3684 0 0 0.00% 0.00%
D 3684 3684 20 20 0.54% 0.54%

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 366338 4418.25 402 393 82.8
A 3 1 13976 163.99 402 393 82.8
A 13 248 11627 135.63 402 393 82.8
B 0 214 60927 777.13 402 391 77.9
B 11 51 60197 767.76 402 391 77.9
B 4 81 11685 144.99 402 391 77.9
C 13 61 3004 29.09 387 388 89.9
C 12 4 2052 18.51 387 388 89.9
C 14 205 1146 8.43 387 388 89.9
D 2 216 358583 3709.04 388 375 96.6
D 1 20 278765 2882.57 388 375 96.6
D 12 233 39110 401.08 388 375 96.6

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