ASTROSAT CZTI

Data Quality Report

Orbit 30096

Creation date: 2024-06-27T20:10:44.490081
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/AS1A10_050T05_9000004330_30096cztM0_level2.evt modeM0/AS1A10_050T05_9000004330_30096cztM0_level2_quad_clean.evt
Size (bytes)544,795,20088,056,000
Size519.6 MB 84.0 MB
Events in quadrant A3,477,780561,290
Events in quadrant B5,332,883559,949
Events in quadrant C3,299,221542,794
Events in quadrant D3,936,191536,451

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143091
B0204451
C0137471
D0156891

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66851382.064323%
B66861612.408017%
C66861151.720012%
D66851482.213912%

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 7505 6686 23 23 0.31% 0.34%
B 7506 6687 9 9 0.12% 0.13%
C 7506 6687 0 0 0.00% 0.00%
D 7505 6686 51 51 0.68% 0.76%

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 13 221383 1302.73 840 822 169.3
A 13 254 12669 69.97 840 822 169.3
A 8 192 11371 62.31 840 822 169.3
B 6 159 1920815 12076.16 823 802 159.0
B 0 229 119763 748.22 823 802 159.0
B 0 190 28321 173.08 823 802 159.0
C 14 238 130673 683.04 805 809 190.1
C 2 114 15684 78.23 805 809 190.1
C 3 233 8651 41.24 805 809 190.1
D 7 238 378424 1935.13 814 795 195.1
D 8 195 198046 1010.8 814 795 195.1
D 2 250 77813 394.67 814 795 195.1

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