ASTROSAT CZTI

Data Quality Report

Orbit 06464

Creation date: 2024-06-27T15:07:33.095957
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/AS1C02_010T01_9000000860_06464cztM0_level2.evt modeM0/AS1C02_010T01_9000000860_06464cztM0_level2_quad_clean.evt
Size (bytes)201,326,40050,328,000
Size192.0 MB 48.0 MB
Events in quadrant A1,309,387332,381
Events in quadrant B1,380,780332,768
Events in quadrant C1,290,180326,577
Events in quadrant D1,904,389311,926

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0620
B0620
C0620
D0620

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A062342
B063821
C061951
D078141

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A309130.097056%
B309140.129408%
C309100.000000%
D3091792.555807%

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 3091 3091 0 0 0.00% 0.00%
B 3091 3091 0 0 0.00% 0.00%
C 3091 3091 0 0 0.00% 0.00%
D 3091 3091 60 60 1.94% 1.94%

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 8 15 12469 174.37 333 325 69.6
A 15 236 5787 78.43 333 325 69.6
A 10 133 5224 70.34 333 325 69.6
B 15 204 18529 278.55 338 329 65.3
B 4 81 17647 265.05 338 329 65.3
B 0 214 17134 257.2 338 329 65.3
C 13 61 2564 28.73 329 330 77.8
C 12 4 1691 17.5 329 330 77.8
C 10 170 1645 16.91 329 330 77.8
D 2 152 517823 6430.07 324 314 80.5
D 11 241 67591 835.92 324 314 80.5
D 8 195 21582 264.26 324 314 80.5

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