ASTROSAT CZTI

Data Quality Report

Orbit 20190109_T03_070T06_9000002642_level2

Creation date: 2024-11-14T15:39:54.031676
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/AS1T03_070T06_9000002642cztM0_level2.fits modeM0/AS1T03_070T06_9000002642cztM0_level2_quad_clean.evt
Size (bytes)148,864,320151,009,920
Size142.0 MB 144.0 MB
Events in quadrant A897,586907,425
Events in quadrant B860,946898,775
Events in quadrant C864,922848,061
Events in quadrant D767,562801,719

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03280
B03280
C03280
D03280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0333800
B0347330
C0355710
D0350090

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A161994612.845855%
B161995493.389098%
C161996333.907649%
D161994052.500154%

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 16919 16197 0 0 0.00% 0.00%
B 16919 16199 0 0 0.00% 0.00%
C 16919 16188 0 0 0.00% 0.00%
D 16919 16197 0 0 0.00% 0.00%

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 14 188 947 12.11 232 217 60.3
A 0 29 863 10.72 232 217 60.3
A 14 204 819 9.99 232 217 60.3
B 2 9 735 10.98 227 216 47.3
B 14 254 585 7.81 227 216 47.3
B 2 8 580 7.7 227 216 47.3
C 1 81 678 7.79 228 212 59.8
C 1 80 660 7.49 228 212 59.8
C 12 241 613 6.71 228 212 59.8
D 3 159 586 6.38 218 198 60.8
D 3 14 584 6.35 218 198 60.8
D 1 31 557 5.9 218 198 60.8

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
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter