ASTROSAT CZTI

Data Quality Report

Orbit 07658

Creation date: 2024-06-27T15:22:21.525222
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/AS1G06_124T01_9000001054_07658cztM0_level2.evt modeM0/AS1G06_124T01_9000001054_07658cztM0_level2_quad_clean.evt
Size (bytes)438,698,88063,400,320
Size418.4 MB 60.5 MB
Events in quadrant A3,184,392371,455
Events in quadrant B3,233,432373,945
Events in quadrant C3,133,707372,331
Events in quadrant D3,301,999357,937

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133582
B0134421
C0133301
D0139641

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63631432.247368%
B63631402.200220%
C6363941.477291%
D63631061.665881%

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 7513 6363 0 0 0.00% 0.00%
B 7513 6364 1 1 0.01% 0.02%
C 7513 6364 0 0 0.00% 0.00%
D 7513 6364 11 11 0.15% 0.17%

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 0 226 7872 41.8 827 808 169.0
A 12 194 7409 39.06 827 808 169.0
A 3 1 3672 16.95 827 808 169.0
B 0 214 31958 197.62 824 805 157.6
B 12 111 16470 99.37 824 805 157.6
B 11 111 13627 81.34 824 805 157.6
C 13 61 6127 28.33 803 807 187.8
C 1 16 2600 9.55 803 807 187.8
C 3 202 1993 6.32 803 807 187.8
D 2 152 111569 561.86 806 783 197.2
D 14 34 65012 325.74 806 783 197.2
D 13 104 35003 173.55 806 783 197.2

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