ASTROSAT CZTI

Data Quality Report

Orbit 14501

Creation date: 2024-06-27T16:56:04.407534
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/AS1G08_066T01_9000002138_14501cztM0_level2.evt modeM0/AS1G08_066T01_9000002138_14501cztM0_level2_quad_clean.evt
Size (bytes)460,788,48070,617,600
Size439.4 MB 67.3 MB
Events in quadrant A3,231,150438,690
Events in quadrant B3,474,146443,553
Events in quadrant C3,198,839433,273
Events in quadrant D3,632,734392,787

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0210

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134993
B0144142
C0132902
D0148762

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6160390.633117%
B6160791.282468%
C6160270.438312%
D61603605.844156%

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 7411 6162 0 0 0.00% 0.00%
B 7411 6162 8 8 0.11% 0.13%
C 7411 6162 2 2 0.03% 0.03%
D 7411 6162 174 174 2.35% 2.82%

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 12 189 118663 732.93 802 785 160.8
A 8 15 10133 58.12 802 785 160.8
A 3 1 10112 57.99 802 785 160.8
B 5 29 116695 771.6 802 783 150.2
B 0 189 51842 339.89 802 783 150.2
B 0 219 32339 210.06 802 783 150.2
C 3 233 137098 772.54 776 783 176.4
C 0 207 21271 116.11 776 783 176.4
C 5 37 14371 77.01 776 783 176.4
D 10 199 729444 4092.37 746 728 178.1
D 2 234 22543 122.51 746 728 178.1
D 15 0 18584 100.28 746 728 178.1

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