ASTROSAT CZTI

Data Quality Report

Orbit 46011

Creation date: 2024-06-27T23:18:44.683814
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_033T01_9000006152_46011cztM0_level2.fits modeM0/AS1A13_033T01_9000006152_46011cztM0_level2_quad_clean.evt
Size (bytes)601,283,520107,170,560
Size573.4 MB 102.2 MB
Events in quadrant A5,850,895736,694
Events in quadrant B8,895,469630,491
Events in quadrant C3,087,063758,034
Events in quadrant D3,929,603674,284

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0216632
B0309162
C0135652
D0162052

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0200
C0200
D0200

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63842113.305138%
B6384163225.563910%
C6384250.391604%
D63841462.286967%

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 7599 6384 51 51 0.67% 0.80%
B 7599 6384 1441 1441 18.96% 22.57%
C 7599 6384 12 12 0.16% 0.19%
D 7599 6385 125 125 1.64% 1.96%

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 2905443 18830.74 744 730 154.3
A 13 248 67075 430.1 744 730 154.3
A 13 254 9358 55.93 744 730 154.3
B 3 112 6108917 45204.94 692 672 135.1
B 12 111 16858 119.79 692 672 135.1
B 11 111 15395 108.96 692 672 135.1
C 14 254 139466 792.06 745 750 175.1
C 12 250 29515 164.25 745 750 175.1
C 2 14 15033 81.56 745 750 175.1
D 2 37 344724 1883.86 729 707 182.6
D 1 52 342024 1869.07 729 707 182.6
D 2 249 305507 1669.11 729 707 182.6

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