ASTROSAT CZTI

Data Quality Report

Orbit 33369

Creation date: 2024-06-27T20:47:58.475561
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_058T15_9000004786_33369cztM0_level2.evt modeM0/AS1A10_058T15_9000004786_33369cztM0_level2_quad_clean.evt
Size (bytes)260,988,48045,342,720
Size248.9 MB 43.2 MB
Events in quadrant A1,083,180314,464
Events in quadrant B1,835,417308,364
Events in quadrant C1,383,495309,339
Events in quadrant D3,438,450268,392

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A048001
B070051
C055801
D0119021

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0480
B0480
C0480
D0480

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A238620.083822%
B23861636.831517%
C2386291.215423%
D238655123.093043%

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 2386 2386 0 0 0.00% 0.00%
B 2386 2386 81 81 3.39% 3.39%
C 2386 2386 30 30 1.26% 1.26%
D 2386 2386 576 576 24.14% 24.14%

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 13 254 4323 70.84 279 273 57.2
A 13 6 2834 44.79 279 273 57.2
A 3 137 2528 39.44 279 273 57.2
B 0 219 304969 5705.13 271 264 53.4
B 5 172 292836 5477.96 271 264 53.4
B 0 189 56369 1050.48 271 264 53.4
C 15 214 106722 1737.26 261 264 61.3
C 15 208 94558 1538.76 261 264 61.3
C 0 10 90121 1466.35 261 264 61.3
D 1 52 1293411 20117.53 248 242 64.3
D 8 195 812856 12641.65 248 242 64.3
D 2 250 183768 2855.07 248 242 64.3

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