ASTROSAT CZTI

Data Quality Report

Orbit 34166

Creation date: 2024-06-27T20:57:20.393624
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/AS1A11_047T03_9000004880_34166cztM0_level2.evt modeM0/AS1A11_047T03_9000004880_34166cztM0_level2_quad_clean.evt
Size (bytes)758,658,24068,440,320
Size723.5 MB 65.3 MB
Events in quadrant A2,651,068443,534
Events in quadrant B10,511,475384,646
Events in quadrant C5,241,270426,442
Events in quadrant D4,183,991414,590

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0115733
B0351742
C0193632
D0162782

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A575740.069481%
B5757333157.859997%
C57574287.434428%
D5757701.215911%

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 7160 5758 0 0 0.00% 0.00%
B 7160 5758 2998 2998 41.87% 52.07%
C 7160 5758 372 372 5.20% 6.46%
D 7160 5758 58 58 0.81% 1.01%

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 21533 152.03 679 665 137.3
A 13 254 9065 61.2 679 665 137.3
A 13 6 7833 52.22 679 665 137.3
B 5 31 5214130 50687.07 529 515 102.9
B 5 15 2539908 24688.13 529 515 102.9
B 5 14 288362 2798.47 529 515 102.9
C 0 239 1827025 11995.39 646 650 152.3
C 0 10 641731 4210.54 646 650 152.3
C 15 214 245416 1607.59 646 650 152.3
D 8 195 1267119 7681.36 657 638 164.9
D 13 249 92872 559.41 657 638 164.9
D 12 218 65007 390.41 657 638 164.9

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