ASTROSAT CZTI

Data Quality Report

Orbit 47213

Creation date: 2024-06-27T23:32:56.016381
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_019T01_9000006302_47213cztM0_level2.fits modeM0/AS1A13_019T01_9000006302_47213cztM0_level2_quad_clean.evt
Size (bytes)609,822,720107,775,360
Size581.6 MB 102.8 MB
Events in quadrant A7,355,466712,540
Events in quadrant B3,395,208787,535
Events in quadrant C3,088,473748,562
Events in quadrant D8,235,616565,170

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0265813
B0141722
C0135322
D0289582

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0190
C0190
D0190

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64474897.584923%
B64471151.783775%
C6447290.449822%
D6447135220.970994%

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 7672 6447 355 355 4.63% 5.51%
B 7672 6447 22 22 0.29% 0.34%
C 7672 6448 10 10 0.13% 0.16%
D 7672 6447 1417 1417 18.47% 21.98%

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 3611672 23124.69 753 736 156.2
A 9 191 806828 5162.27 753 736 156.2
A 15 235 19460 119.91 753 736 156.2
B 5 32 99852 648.37 776 754 152.8
B 0 190 90397 586.51 776 754 152.8
B 0 200 82795 536.77 776 754 152.8
C 14 254 123612 689.66 756 759 178.1
C 13 61 5150 24.65 756 759 178.1
C 8 128 4787 22.61 756 759 178.1
D 6 112 5075583 28393.62 706 685 178.7
D 5 171 137677 766.46 706 685 178.7
D 12 218 134622 749.37 706 685 178.7

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