ASTROSAT CZTI

Data Quality Report

Orbit 08417

Creation date: 2024-06-27T15:32:28.297448
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/AS1A02_158T01_9000001184_08417cztM0_level2.evt modeM0/AS1A02_158T01_9000001184_08417cztM0_level2_quad_clean.evt
Size (bytes)718,876,800136,454,400
Size685.6 MB 130.1 MB
Events in quadrant A5,174,819844,122
Events in quadrant B5,407,362861,299
Events in quadrant C4,977,069847,819
Events in quadrant D5,458,559810,186

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02260
B02260
C02260
D02260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B090
C090
D090

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0229411
B0234643
C0225061
D0242431

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A11114940.845780%
B11113550.494916%
C11114210.188951%
D111141321.187691%

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 11644 11115 10 10 0.09% 0.09%
B 11644 11115 1 1 0.01% 0.01%
C 11644 11115 2 2 0.02% 0.02%
D 11644 11115 80 80 0.69% 0.72%

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 5 16 70966 265.25 1289 1260 262.8
A 14 111 60562 225.66 1289 1260 262.8
A 15 236 42508 156.96 1289 1260 262.8
B 0 214 163212 653.02 1299 1267 248.0
B 4 81 88365 351.21 1299 1267 248.0
B 5 255 57149 225.34 1299 1267 248.0
C 1 16 38354 126.13 1260 1266 294.1
C 8 128 12729 38.98 1260 1266 294.1
C 13 61 9579 28.27 1260 1266 294.1
D 4 95 370066 1192.8 1251 1212 309.2
D 1 52 69239 219.99 1251 1212 309.2
D 12 221 66323 210.56 1251 1212 309.2

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