ASTROSAT CZTI

Data Quality Report

Orbit 45980

Creation date: 2024-06-27T23:18:25.476973
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_017T01_9000006148_45980cztM0_level2.fits modeM0/AS1A13_017T01_9000006148_45980cztM0_level2_quad_clean.evt
Size (bytes)519,292,800109,474,560
Size495.2 MB 104.4 MB
Events in quadrant A7,935,575683,116
Events in quadrant B4,130,246765,062
Events in quadrant C2,974,211747,459
Events in quadrant D3,685,976672,852

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280433
B0167522
C0134342
D0155592

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0160
D0160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64066159.600375%
B64061742.716204%
C6406430.671246%
D64061161.810802%

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 7616 6406 407 407 5.34% 6.35%
B 7616 6406 82 82 1.08% 1.28%
C 7616 6406 22 22 0.29% 0.34%
D 7616 6406 92 92 1.21% 1.44%

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 2675539 18619.23 700 685 143.7
A 15 223 2488326 17316.07 700 685 143.7
A 0 247 45826 314.22 700 685 143.7
B 3 112 1166463 8255.99 730 709 141.2
B 5 255 52233 364.9 730 709 141.2
B 0 186 21137 144.67 730 709 141.2
C 14 254 105677 615.47 729 733 170.5
C 5 250 15342 85.68 729 733 170.5
C 3 233 5893 30.26 729 733 170.5
D 1 52 411474 2297.39 716 695 178.8
D 1 47 268517 1497.86 716 695 178.8
D 2 249 189447 1055.64 716 695 178.8

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