ASTROSAT CZTI

Data Quality Report

Orbit 10617

Creation date: 2024-06-27T16:01:33.030516
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_10617cztM0_level2.evt modeM0/AS1T01_191T01_9000001536_10617cztM0_level2_quad_clean.evt
Size (bytes)921,804,480187,188,480
Size879.1 MB 178.5 MB
Events in quadrant A5,761,3191,234,022
Events in quadrant B8,441,9551,193,238
Events in quadrant C5,613,9731,238,855
Events in quadrant D7,277,0831,162,389

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02460
B02460
C02460
D02460

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0249103
B0327882
C0248092
D0291462

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A121671040.854771%
B121677566.213528%
C12167660.542451%
D121672061.693104%

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 13352 12169 0 0 0.00% 0.00%
B 13352 12169 436 436 3.27% 3.58%
C 13352 12169 2 2 0.01% 0.02%
D 13352 12169 96 96 0.72% 0.79%

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 13 251 42796 135.38 1465 1442 305.5
A 1 162 17334 52.02 1465 1442 305.5
A 13 210 16859 50.47 1465 1442 305.5
B 4 239 2405959 8711.85 1436 1406 276.0
B 0 219 188791 678.91 1436 1406 276.0
B 0 214 103199 368.8 1436 1406 276.0
C 4 254 40858 119.01 1420 1437 331.2
C 4 175 13062 35.09 1420 1437 331.2
C 13 61 10465 27.25 1420 1437 331.2
D 8 195 646979 1872.76 1409 1378 344.7
D 2 16 642263 1859.08 1409 1378 344.7
D 7 71 310700 897.28 1409 1378 344.7

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