ASTROSAT CZTI

Data Quality Report

Orbit 47248

Creation date: 2024-06-27T23:33:23.303585
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/AS1C09_005T01_9000006304_47248cztM0_level2.fits modeM0/AS1C09_005T01_9000006304_47248cztM0_level2_quad_clean.evt
Size (bytes)602,510,400107,432,640
Size574.6 MB 102.5 MB
Events in quadrant A6,954,412744,546
Events in quadrant B3,855,722751,038
Events in quadrant C3,020,233742,380
Events in quadrant D7,931,305528,231

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0256020
B0162830
C0142640
D0282681

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A69841201.718213%
B69851472.104510%
C698560.085898%
D6984162823.310424%

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 6984 6984 14 14 0.20% 0.20%
B 6985 6985 37 37 0.53% 0.53%
C 6985 6985 1 1 0.01% 0.01%
D 6984 6984 1579 1579 22.61% 22.61%

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 3461542 21640.38 767 747 159.9
A 9 191 506160 3160.35 767 747 159.9
A 13 254 11128 64.91 767 747 159.9
B 0 200 372396 2476.54 759 734 150.1
B 4 171 231391 1536.96 759 734 150.1
B 0 190 53723 353.09 759 734 150.1
C 14 254 24364 132.28 759 761 178.4
C 8 111 10990 57.33 759 761 178.4
C 10 9 7906 40.04 759 761 178.4
D 12 1 3793790 22665.35 666 643 167.4
D 2 249 1239842 7404.64 666 643 167.4
D 12 2 101737 604.07 666 643 167.4

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