ASTROSAT CZTI

Data Quality Report

Orbit 05199

Creation date: 2024-06-27T14:52:32.963518
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/AS1G05_104T01_9000000656_05199cztM0_level2.evt modeM0/AS1G05_104T01_9000000656_05199cztM0_level2_quad_clean.evt
Size (bytes)496,408,320104,492,160
Size473.4 MB 99.7 MB
Events in quadrant A3,620,616659,166
Events in quadrant B3,513,422667,452
Events in quadrant C3,402,034675,058
Events in quadrant D3,989,354642,342

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0159623
B0155152
C0154042
D0172482

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A74701762.356091%
B74701161.552878%
C7470690.923695%
D74712192.931334%

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 8015 7471 26 26 0.32% 0.35%
B 8015 7471 1 1 0.01% 0.01%
C 8015 7471 0 0 0.00% 0.00%
D 8016 7472 91 91 1.14% 1.22%

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 50 164426 921.08 863 842 177.6
A 4 2 137562 769.82 863 842 177.6
A 12 194 8657 44.0 863 842 177.6
B 15 204 90580 543.14 868 847 165.2
B 15 54 29253 171.94 868 847 165.2
B 12 111 14547 82.92 868 847 165.2
C 1 16 64963 329.71 846 847 194.5
C 12 4 18617 91.38 846 847 194.5
C 14 67 12704 60.97 846 847 194.5
D 2 136 311926 1509.71 843 815 206.1
D 2 33 281450 1361.82 843 815 206.1
D 2 63 102541 493.64 843 815 206.1

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