ASTROSAT CZTI

Data Quality Report

Orbit 03722

Creation date: 2024-06-27T14:32:51.495271
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/AS1G05_182T01_9000000484_03722cztM0_level2.evt modeM0/AS1G05_182T01_9000000484_03722cztM0_level2_quad_clean.evt
Size (bytes)161,611,20038,194,560
Size154.1 MB 36.4 MB
Events in quadrant A1,133,153251,361
Events in quadrant B1,354,803250,330
Events in quadrant C1,055,593245,390
Events in quadrant D1,187,002238,226

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0480
B0480
C0480
D0480

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A049090
B054860
C047580
D051280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2371100.421763%
B2371200.843526%
C237100.000000%
D2371160.674821%

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 2371 2371 4 4 0.17% 0.17%
B 2371 2371 16 16 0.67% 0.67%
C 2371 2371 0 0 0.00% 0.00%
D 2371 2371 11 11 0.46% 0.46%

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 0 118 32963 561.41 275 270 58.2
A 13 248 14616 246.35 275 270 58.2
A 8 15 10663 178.47 275 270 58.2
B 15 204 142773 2628.38 273 267 54.2
B 2 249 63606 1168.22 273 267 54.2
B 4 81 39276 719.48 273 267 54.2
C 2 53 16512 258.53 264 264 62.8
C 9 144 5018 75.64 264 264 62.8
C 12 4 2554 36.43 264 264 62.8
D 2 37 55020 820.14 268 260 66.8
D 13 223 43791 651.97 268 260 66.8
D 9 35 35280 524.5 268 260 66.8

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