ASTROSAT CZTI

Data Quality Report

Orbit 47073

Creation date: 2024-06-27T23:31:24.899408
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/AS1C09_005T01_9000006296_47073cztM0_level2.fits modeM0/AS1C09_005T01_9000006296_47073cztM0_level2_quad_clean.evt
Size (bytes)519,658,560119,105,280
Size495.6 MB 113.6 MB
Events in quadrant A7,035,796784,729
Events in quadrant B3,783,973804,091
Events in quadrant C3,328,027786,397
Events in quadrant D4,512,346714,487

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0261310
B0162390
C0155910
D0188620

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A74242233.003772%
B74231151.549239%
C7424310.417565%
D74242152.896013%

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 7424 7424 0 0 0.00% 0.00%
B 7423 7423 11 11 0.15% 0.15%
C 7424 7424 18 18 0.24% 0.24%
D 7424 7424 162 162 2.18% 2.18%

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 3772612 21711.58 829 809 173.7
A 13 248 22240 123.36 829 809 173.7
A 0 243 16428 89.91 829 809 173.7
B 3 112 263804 1617.28 823 795 162.6
B 0 198 82935 505.09 823 795 162.6
B 4 171 53116 321.73 823 795 162.6
C 14 254 64806 336.85 813 816 190.0
C 12 249 34998 179.94 813 816 190.0
C 7 220 33975 174.55 813 816 190.0
D 1 52 406146 2000.8 810 784 202.6
D 1 47 219822 1081.14 810 784 202.6
D 5 32 210879 1037.0 810 784 202.6

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
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter