ASTROSAT CZTI

Data Quality Report

Orbit 42603

Creation date: 2024-06-27T22:42:04.990429
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/AS1A12_061T07_9000005818_42603cztM0_level2.fits modeM0/AS1A12_061T07_9000005818_42603cztM0_level2_quad_clean.evt
Size (bytes)313,395,84091,385,280
Size298.9 MB 87.2 MB
Events in quadrant A2,851,713612,220
Events in quadrant B2,450,992635,719
Events in quadrant C2,714,477608,498
Events in quadrant D3,182,710550,140

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0115472
B0107662
C0110832
D0129862

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280
B0290
C0290
D0290

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5146140.272056%
B5146260.505247%
C5146390.757870%
D51461212.351341%

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 7088 5147 8 8 0.11% 0.16%
B 7088 5147 13 13 0.18% 0.25%
C 7088 5147 27 27 0.38% 0.52%
D 7088 5147 83 83 1.17% 1.61%

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 535645 4458.58 585 572 120.0
A 15 237 30348 248.11 585 572 120.0
A 13 248 10649 83.97 585 572 120.0
B 5 255 65899 586.72 584 567 111.4
B 0 245 40041 354.5 584 567 111.4
B 15 85 17535 152.38 584 567 111.4
C 15 214 229796 1692.4 584 588 135.4
C 0 239 122535 900.42 584 588 135.4
C 14 254 30966 224.3 584 588 135.4
D 1 52 410042 2919.77 578 562 140.2
D 2 249 217901 1549.72 578 562 140.2
D 2 16 135150 959.67 578 562 140.2

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