ASTROSAT CZTI

Data Quality Report

Orbit 37588

Creation date: 2024-06-27T21:41:53.599062
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_053T01_9000005338_37588cztM0_level2.evt modeM0/AS1T05_053T01_9000005338_37588cztM0_level2_quad_clean.evt
Size (bytes)475,096,32079,741,440
Size453.1 MB 76.0 MB
Events in quadrant A2,936,431516,296
Events in quadrant B4,179,975502,339
Events in quadrant C2,926,962519,548
Events in quadrant D3,962,061481,929

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0123373
B0162082
C0122162
D0156982

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5636150.266146%
B56363536.263307%
C5636611.082328%
D56363335.908446%

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 7278 5637 5 5 0.07% 0.09%
B 7278 5637 261 261 3.59% 4.63%
C 7278 5637 54 54 0.74% 0.96%
D 7278 5637 305 305 4.19% 5.41%

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 347259 2641.13 648 635 131.2
A 15 222 33081 247.23 648 635 131.2
A 12 189 15879 116.15 648 635 131.2
B 5 255 864662 7132.5 628 613 121.1
B 5 172 472665 3896.67 628 613 121.1
B 5 200 80196 656.94 628 613 121.1
C 15 214 242201 1653.21 624 630 146.1
C 0 10 170425 1162.0 624 630 146.1
C 15 159 24172 161.11 624 630 146.1
D 2 249 413020 2731.8 617 600 151.0
D 10 253 345116 2282.01 617 600 151.0
D 1 52 259929 1717.75 617 600 151.0

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