ASTROSAT CZTI

Data Quality Report

Orbit 48190

Creation date: 2024-08-26T08:13:14.144205
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_037T05_9000006414_48190cztM0_level2.fits modeM0/AS1A13_037T05_9000006414_48190cztM0_level2_quad_clean.evt
Size (bytes)758,568,96068,523,840
Size723.4 MB 65.3 MB
Events in quadrant A7,455,526787,402
Events in quadrant B1,292,543113
Events in quadrant C3,244,707767,867
Events in quadrant D15,502,5721,207

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0273080
B079560
C0154170
D0511900

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7437680.914347%
B7438743799.986556%
C7438370.497446%
D7437742999.892430%

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 7438 7438 0 0 0.00% 0.00%
B 7438 7437 3 3 0.04% 0.04%
C 7439 7439 17 17 0.23% 0.23%
D 7437 7436 4570 4570 61.45% 61.46%

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 4290573 24909.28 815 796 172.2
A 13 254 15958 88.04 815 796 172.2
A 3 137 9626 51.27 815 796 172.2
B 2 177 1026136 77826.43 54 53 13.2
B 4 21 22013 1665.62 54 53 13.2
B 0 200 20190 1527.35 54 53 13.2
C 12 249 72745 382.05 797 802 188.3
C 12 2 21875 111.91 797 802 188.3
C 0 207 12526 62.26 797 802 188.3
D 8 129 13628943 525780.45 96 92 25.9
D 2 165 1438691 55498.97 96 92 25.9
D 12 128 11070 423.51 96 92 25.9

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