ASTROSAT CZTI

Data Quality Report

Orbit 10302

Creation date: 2024-06-27T15:57:39.102263
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/AS1A03_124T01_9000001486_10302cztM0_level2.evt modeM0/AS1A03_124T01_9000001486_10302cztM0_level2_quad_clean.evt
Size (bytes)444,686,40084,438,720
Size424.1 MB 80.5 MB
Events in quadrant A3,077,693536,081
Events in quadrant B3,657,825535,542
Events in quadrant C2,996,174523,597
Events in quadrant D3,287,112501,734

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135613
B0152392
C0135272
D0142422

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0210

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6596160.242571%
B65961231.864767%
C6596130.197089%
D6596400.606428%

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 8667 6598 1 1 0.01% 0.02%
B 8667 6598 71 71 0.82% 1.08%
C 8667 6598 4 4 0.05% 0.06%
D 8667 6598 25 25 0.29% 0.38%

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 8 15 35443 218.93 779 762 158.4
A 13 248 15859 95.3 779 762 158.4
A 3 1 12560 74.48 779 762 158.4
B 4 239 509444 3415.06 779 761 149.0
B 11 51 46263 305.48 779 761 149.0
B 0 214 31884 208.95 779 761 149.0
C 4 254 27574 153.0 754 760 175.3
C 12 4 19617 107.6 754 760 175.3
C 14 234 7836 40.38 754 760 175.3
D 8 195 263836 1472.48 746 724 178.7
D 13 104 83541 463.48 746 724 178.7
D 2 14 26542 144.49 746 724 178.7

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