ASTROSAT CZTI

Data Quality Report

Orbit 36203

Creation date: 2022-06-13T11:47:38.403493
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/AS1T05_009T02_9000005172_36203cztM0_level2.evt modeM0/AS1T05_009T02_9000005172_36203cztM0_level2_quad_clean.evt
Size (bytes)280,774,08067,032,000
Size267.8 MB 63.9 MB
Events in quadrant A1,698,915451,658
Events in quadrant B1,768,567463,731
Events in quadrant C1,911,130469,247
Events in quadrant D2,901,908413,642

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A072081
B074621
C076361
D0108831

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0660
B0660
C0660
D0660

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A325660.184275%
B3256481.474201%
C3256240.737101%
D325636611.240786%

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 3256 3256 1 1 0.03% 0.03%
B 3256 3256 29 29 0.89% 0.89%
C 3256 3256 19 19 0.58% 0.58%
D 3256 3256 321 321 9.86% 9.86%

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 15 223 104252 1387.89 372 365 74.9
A 10 83 95653 1273.01 372 365 74.9
A 8 144 56080 744.33 372 365 74.9
B 4 171 153477 2140.03 376 366 71.5
B 5 172 63151 877.54 376 366 71.5
B 5 255 51473 714.32 376 366 71.5
C 15 214 145308 1657.88 374 378 87.4
C 1 23 139885 1595.84 374 378 87.4
C 0 10 63414 721.08 374 378 87.4
D 12 6 914807 10821.92 347 339 84.5
D 2 250 168014 1984.28 347 339 84.5
D 12 233 157118 1855.34 347 339 84.5

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