ASTROSAT CZTI

Data Quality Report

Orbit 33484

Creation date: 2024-06-27T20:49:20.579781
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_060T01_9000004804_33484cztM0_level2.evt modeM0/AS1A11_060T01_9000004804_33484cztM0_level2_quad_clean.evt
Size (bytes)512,683,20057,078,720
Size488.9 MB 54.4 MB
Events in quadrant A2,492,459358,847
Events in quadrant B4,797,544317,594
Events in quadrant C2,986,970358,564
Events in quadrant D4,885,711316,736

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0400
B0400
C0400
D0400

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0107743
B0177432
C0118942
D0181722

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01120
B01120
C01120
D01120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A536560.111836%
B536576314.221808%
C5365440.820130%
D53654889.095993%

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 9341 5367 0 0 0.00% 0.00%
B 9341 5366 609 609 6.52% 11.35%
C 9341 5367 31 31 0.33% 0.58%
D 9341 5367 465 465 4.98% 8.66%

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 13 254 8658 62.34 643 630 128.8
A 3 137 6416 44.93 643 630 128.8
A 10 83 5719 39.51 643 630 128.8
B 5 172 1760196 15184.94 605 589 115.9
B 0 213 398370 3432.74 605 589 115.9
B 5 255 206405 1776.14 605 589 115.9
C 15 214 234353 1606.68 629 635 145.5
C 0 10 131268 898.03 629 635 145.5
C 1 23 67764 461.47 629 635 145.5
D 2 250 1140311 7869.25 598 581 144.8
D 8 195 875141 6038.39 598 581 144.8
D 13 249 218324 1503.4 598 581 144.8

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