ASTROSAT CZTI

Data Quality Report

Orbit 30414

Creation date: 2024-06-27T20:14:56.219016
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/AS1C05_019T04_9000004376_30414cztM0_level2.evt modeM0/AS1C05_019T04_9000004376_30414cztM0_level2_quad_clean.evt
Size (bytes)531,748,800108,607,680
Size507.1 MB 103.6 MB
Events in quadrant A3,155,988715,366
Events in quadrant B5,365,425723,841
Events in quadrant C3,444,327711,896
Events in quadrant D3,702,272689,259

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0220
C0220
D0220

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136152
B0203543
C0142982
D0153792

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6437400.621407%
B64361251.942200%
C64362033.154133%
D64361762.734618%

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 7502 6438 5 5 0.07% 0.08%
B 7501 6436 13 13 0.17% 0.20%
C 7501 6436 24 24 0.32% 0.37%
D 7501 6436 106 106 1.41% 1.65%

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 95398 613.37 785 771 154.3
A 8 192 24100 151.22 785 771 154.3
A 13 254 12899 78.61 785 771 154.3
B 6 159 1875490 12816.54 787 766 146.3
B 0 229 313763 2139.8 787 766 146.3
B 4 80 41865 280.97 787 766 146.3
C 14 238 139360 783.11 768 772 177.0
C 3 233 121688 683.25 768 772 177.0
C 10 22 79407 444.34 768 772 177.0
D 8 195 226622 1214.96 762 744 185.9
D 13 138 215679 1156.1 762 744 185.9
D 13 249 195110 1045.46 762 744 185.9

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