ASTROSAT CZTI

Data Quality Report

Orbit 14208

Creation date: 2024-06-27T16:51:55.232600
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/AS1G08_084T01_9000002100_14208cztM0_level2.evt modeM0/AS1G08_084T01_9000002100_14208cztM0_level2_quad_clean.evt
Size (bytes)232,611,84042,511,680
Size221.8 MB 40.5 MB
Events in quadrant A1,153,046308,741
Events in quadrant B1,215,974310,690
Events in quadrant C1,125,720300,082
Events in quadrant D3,392,906202,645

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0460
B0460
C0460
D0460

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A047782
B049491
C046751
D0115951

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A228680.349956%
B2286170.743657%
C2286180.787402%
D2286102144.663167%

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 3188 2288 2 2 0.06% 0.09%
B 3188 2288 0 0 0.00% 0.00%
C 3188 2288 0 0 0.00% 0.00%
D 3188 2287 958 958 30.05% 41.89%

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 12 189 19166 320.25 284 278 59.0
A 9 143 15926 265.32 284 278 59.0
A 8 15 13935 231.56 284 278 59.0
B 4 97 26884 465.29 287 279 57.2
B 0 197 19315 332.92 287 279 57.2
B 0 219 14507 248.83 287 279 57.2
C 3 233 46111 692.13 277 278 66.2
C 13 61 1900 24.49 277 278 66.2
C 3 202 623 5.21 277 278 66.2
D 13 122 1836024 34430.09 196 191 53.3
D 12 110 696713 13062.91 196 191 53.3
D 10 199 44102 823.53 196 191 53.3

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