ASTROSAT CZTI

Data Quality Report

Orbit 47220

Creation date: 2024-06-27T23:33:03.185711
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_47220cztM0_level2.fits modeM0/AS1C09_005T01_9000006304_47220cztM0_level2_quad_clean.evt
Size (bytes)563,172,480111,228,480
Size537.1 MB 106.1 MB
Events in quadrant A8,087,871714,216
Events in quadrant B3,838,249751,859
Events in quadrant C3,275,862747,806
Events in quadrant D5,098,068661,918

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0292920
B0162490
C0149870
D0202791

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A70565287.482993%
B70572223.145813%
C7057510.722687%
D70563805.385488%

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 7056 7056 122 122 1.73% 1.73%
B 7057 7057 14 14 0.20% 0.20%
C 7057 7057 16 16 0.23% 0.23%
D 7056 7056 278 278 3.94% 3.94%

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 3721466 22554.39 785 766 165.0
A 9 191 1295447 7848.18 785 766 165.0
A 15 235 12134 68.91 785 766 165.0
B 0 190 244177 1580.02 790 765 154.1
B 15 201 192681 1245.75 790 765 154.1
B 0 200 135389 873.86 790 765 154.1
C 14 254 186729 1009.8 783 783 184.1
C 12 2 26254 138.32 783 783 184.1
C 14 67 8766 43.35 783 783 184.1
D 6 112 1310480 6771.31 769 742 193.4
D 12 218 424994 2193.37 769 742 193.4
D 13 84 230945 1190.14 769 742 193.4

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