ASTROSAT CZTI

Data Quality Report

Orbit 07683

Creation date: 2024-06-27T15:22:40.730046
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_104T01_9000001060_07683cztM0_level2.evt modeM0/AS1G06_104T01_9000001060_07683cztM0_level2_quad_clean.evt
Size (bytes)607,305,60094,386,240
Size579.2 MB 90.0 MB
Events in quadrant A3,012,214620,165
Events in quadrant B3,147,530638,448
Events in quadrant C8,547,368560,987
Events in quadrant D3,246,921586,719

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132113
B0134582
C0298842
D0139792

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6473200.308976%
B6473350.540708%
C6473128619.867140%
D6473510.787888%

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 7653 6474 0 0 0.00% 0.00%
B 7653 6474 3 3 0.04% 0.05%
C 7653 6474 1342 1342 17.54% 20.73%
D 7653 6474 15 15 0.20% 0.23%

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 7479 42.6 781 764 157.6
A 12 194 6853 38.63 781 764 157.6
A 13 254 3489 17.29 781 764 157.6
B 0 219 31218 204.76 793 775 148.7
B 12 111 14307 91.02 793 775 148.7
B 5 255 12990 82.16 793 775 148.7
C 9 68 5620727 32912.05 739 743 170.8
C 8 208 21806 123.35 739 743 170.8
C 8 128 8175 43.52 739 743 170.8
D 2 152 197547 1050.1 770 750 187.4
D 2 136 48487 254.72 770 750 187.4
D 12 233 40834 213.89 770 750 187.4

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