ASTROSAT CZTI

Data Quality Report

Orbit 45305

Creation date: 2024-06-27T23:12:10.286137
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/AS1A13_073T04_9000006066_45305cztM0_level2.fits modeM0/AS1A13_073T04_9000006066_45305cztM0_level2_quad_clean.evt
Size (bytes)510,719,040115,793,280
Size487.1 MB 110.4 MB
Events in quadrant A5,922,258766,489
Events in quadrant B3,256,625795,415
Events in quadrant C4,033,468749,313
Events in quadrant D5,133,934693,111

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0228890
B0148920
C0173510
D0202190

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7206811.124063%
B7207180.249757%
C72072333.232968%
D72072433.371722%

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 7206 7206 67 67 0.93% 0.93%
B 7207 7207 2 2 0.03% 0.03%
C 7207 7207 258 258 3.58% 3.58%
D 7207 7207 241 241 3.34% 3.34%

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 2420884 14669.74 787 768 165.0
A 10 248 447496 2707.88 787 768 165.0
A 0 243 14498 83.23 787 768 165.0
B 0 183 48877 314.53 786 763 153.0
B 0 246 24942 158.06 786 763 153.0
B 12 111 19837 124.69 786 763 153.0
C 14 254 621869 3438.28 764 766 180.6
C 12 250 393259 2172.75 764 766 180.6
C 3 233 22764 121.78 764 766 180.6
D 1 52 1087399 5706.89 767 744 190.4
D 2 249 435028 2280.77 767 744 190.4
D 13 249 176555 923.32 767 744 190.4

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