ASTROSAT CZTI

Data Quality Report

Orbit 00379

Creation date: 2024-06-27T13:59:10.220660
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/AS1P01_161T05_9000000058_00379cztM0_level2.evt modeM0/AS1P01_161T05_9000000058_00379cztM0_level2_quad_clean.evt
Size (bytes)808,064,64048,268,800
Size770.6 MB 46.0 MB
Events in quadrant A5,879,133293,373
Events in quadrant B5,716,596278,532
Events in quadrant C6,222,951290,171
Events in quadrant D6,326,264253,457

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01000
B01000
C01000
D01000

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0209972
B0204681
C0219601
D0222931

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4928110.223214%
B492860.121753%
C49281222.475649%
D49281052.130682%

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 7142 4929 193 193 2.70% 3.92%
B 7142 4929 85 85 1.19% 1.72%
C 7142 4929 356 356 4.98% 7.22%
D 7142 4929 419 419 5.87% 8.50%

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 0 69 230158 739.27 1412 1399 309.4
A 0 238 84969 270.07 1412 1399 309.4
A 12 150 64287 203.23 1412 1399 309.4
B 0 230 50998 149.14 1427 1433 332.3
B 0 207 48562 141.81 1427 1433 332.3
B 0 187 33147 95.43 1427 1433 332.3
C 10 107 875821 2376.9 1318 1366 367.9
C 1 1 101293 271.62 1318 1366 367.9
C 3 159 28633 74.12 1318 1366 367.9
D 13 7 966451 2445.64 1258 1305 394.6
D 7 85 124816 312.97 1258 1305 394.6
D 1 5 89680 223.94 1258 1305 394.6

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
Veto Counter