ASTROSAT CZTI

Data Quality Report

Orbit 45783

Creation date: 2024-06-27T23:16:09.140993
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/AS1T05_183T01_9000006124_45783cztM0_level2.fits modeM0/AS1T05_183T01_9000006124_45783cztM0_level2_quad_clean.evt
Size (bytes)871,606,080110,064,960
Size831.2 MB 105.0 MB
Events in quadrant A6,937,125778,728
Events in quadrant B8,120,043723,960
Events in quadrant C4,385,784768,140
Events in quadrant D12,263,073556,393

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0257570
B0291590
C0183170
D0414510

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A72461862.566933%
B7246105114.504554%
C72462813.878002%
D7246213529.464532%

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 7246 7246 58 58 0.80% 0.80%
B 7246 7245 742 742 10.24% 10.24%
C 7246 7246 295 295 4.07% 4.07%
D 7246 7246 2483 2483 34.27% 34.27%

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 10 83 3297104 18665.67 831 813 176.6
A 14 235 203653 1148.61 831 813 176.6
A 13 248 113157 636.16 831 813 176.6
B 3 112 3308679 21041.72 796 773 157.2
B 5 172 559021 3551.04 796 773 157.2
B 15 201 243527 1544.17 796 773 157.2
C 12 2 699311 3634.65 809 816 192.2
C 14 96 232150 1203.76 809 816 192.2
C 14 254 157929 817.54 809 816 192.2
D 11 241 6181005 32412.83 746 723 190.7
D 8 48 1308144 6856.84 746 723 190.7
D 1 52 1042472 5463.51 746 723 190.7

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