ASTROSAT CZTI

Data Quality Report

Orbit 20220607_A10_071T50_9000005166_level2

Creation date: 2022-06-11T11:27:42.839258
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/AS1A10_071T50_9000005166cztM0_level2_bc.evt modeM0/AS1A10_071T50_9000005166cztM0_level2_quad_clean.evt
Size (bytes)2,684,105,280573,845,760
Size2.5 GB 547.3 MB
Events in quadrant A10,733,5503,737,591
Events in quadrant B14,263,6323,717,041
Events in quadrant C23,470,3963,561,221
Events in quadrant D29,603,0083,115,866

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0975750
B01146870
C01426230
D01665080

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01810
B01810
C01810
D01810

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A09680
B09680
C09680
D09680

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A47287810.171294%
B4728711792.493286%
C4728741078.685262%
D47287847517.922473%

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 65449 47299 2 2 0.00% 0.00%
B 65449 47287 88 88 0.13% 0.19%
C 65449 47282 1283 1283 1.96% 2.71%
D 65449 47280 4501 4501 6.88% 9.52%

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 10 83 1203472 2273.71 2354 2307 528.3
A 8 144 167476 312.65 2354 2307 528.3
A 10 255 87441 161.15 2354 2307 528.3
B 5 172 2007666 4271.39 2352 2298 469.5
B 5 236 1640986 3490.37 2352 2298 469.5
B 4 171 559979 1187.85 2352 2298 469.5
C 4 254 6897548 13600.89 2221 2196 507.0
C 15 214 1951422 3844.79 2221 2196 507.0
C 0 207 1949564 3841.13 2221 2196 507.0
D 2 31 11121912 21117.86 2140 2063 526.6
D 2 250 2566209 4869.61 2140 2063 526.6
D 13 249 2228300 4227.88 2140 2063 526.6

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