ASTROSAT CZTI

Data Quality Report

Orbit 01033

Creation date: 2024-06-27T14:06:27.801458
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/AS1P01_998T02_9000000190_01033cztM0_level2.evt modeM0/AS1P01_998T02_9000000190_01033cztM0_level2_quad_clean.evt
Size (bytes)1,776,620,160162,737,280
Size1.7 GB 155.2 MB
Events in quadrant A13,159,5691,063,618
Events in quadrant B13,582,3751,063,673
Events in quadrant C14,199,2091,026,495
Events in quadrant D12,148,7851,025,379

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A047038323
B048359319
C050205331
D044170354

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02260
B02262
C02260
D02260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A10816480.443787%
B10816460.425296%
C108111801.664971%
D10801360.333302%

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 14130 10862 477 477 3.38% 4.39%
B 14129 10857 529 529 3.74% 4.87%
C 14129 10849 921 921 6.52% 8.49%
D 14129 10851 327 327 2.31% 3.01%

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 4 32 197485 240.44 3365 3386 807.3
A 15 233 33000 36.68 3365 3386 807.3
A 8 14 18288 18.46 3365 3386 807.3
B 0 220 50130 56.1 3529 3537 830.6
B 5 249 32435 34.79 3529 3537 830.6
B 15 22 28642 30.23 3529 3537 830.6
C 8 208 837048 906.57 3269 3388 919.6
C 15 241 490381 529.58 3269 3388 919.6
C 3 111 46287 46.65 3269 3388 919.6
D 1 83 148630 149.15 3161 3275 974.6
D 10 125 79500 78.22 3161 3275 974.6
D 9 65 21771 18.98 3161 3275 974.6

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