ASTROSAT CZTI

Data Quality Report

Orbit 16380

Creation date: 2024-06-27T17:21:52.033822
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/AS1A05_069T05_9000002420_16380cztM0_level2.evt modeM0/AS1A05_069T05_9000002420_16380cztM0_level2_quad_clean.evt
Size (bytes)396,100,80068,745,600
Size377.8 MB 65.6 MB
Events in quadrant A2,778,278427,946
Events in quadrant B3,050,430439,463
Events in quadrant C2,641,046422,653
Events in quadrant D3,154,291408,713

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0119012
B0126111
C0113051
D0130311

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A54741102.009499%
B5474871.589331%
C5474370.675923%
D5474801.461454%

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 6500 5476 87 87 1.34% 1.59%
B 6500 5476 51 51 0.78% 0.93%
C 6500 5476 0 0 0.00% 0.00%
D 6500 5476 74 74 1.14% 1.35%

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 15 174 269037 2077.99 634 618 129.2
A 9 143 32697 248.34 634 618 129.2
A 15 223 28911 219.03 634 618 129.2
B 10 16 228808 1850.06 643 628 123.3
B 15 35 146514 1182.83 643 628 123.3
B 0 189 64755 519.93 643 628 123.3
C 3 233 122742 842.74 619 624 144.9
C 14 238 95974 658.01 619 624 144.9
C 10 169 7153 45.06 619 624 144.9
D 2 122 427250 2776.7 622 604 153.7
D 12 218 281501 1828.14 622 604 153.7
D 12 110 37868 242.52 622 604 153.7

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