ASTROSAT CZTI

Data Quality Report

Orbit 08077

Creation date: 2024-06-27T15:27:38.186436
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/AS1A02_055T01_9000001114_08077cztM0_level2.evt modeM0/AS1A02_055T01_9000001114_08077cztM0_level2_quad_clean.evt
Size (bytes)424,730,88094,806,720
Size405.1 MB 90.4 MB
Events in quadrant A2,965,380604,387
Events in quadrant B3,107,973624,113
Events in quadrant C3,039,543631,988
Events in quadrant D3,339,465588,979

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0127953
B0130702
C0129442
D0139272

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0270
B0270
C0270
D0270

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6041741.224963%
B6041921.522927%
C6041661.092534%
D60411562.582354%

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 8721 6043 0 0 0.00% 0.00%
B 8721 6043 1 1 0.01% 0.02%
C 8721 6043 0 0 0.00% 0.00%
D 8721 6043 60 60 0.69% 0.99%

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 0 128 10063 60.44 767 751 154.1
A 0 226 7139 41.46 767 751 154.1
A 12 194 6775 39.1 767 751 154.1
B 4 81 17961 117.85 781 764 145.9
B 12 111 14982 97.43 781 764 145.9
B 10 16 12821 82.63 781 764 145.9
C 1 16 33515 185.76 769 774 176.2
C 13 61 5900 29.08 769 774 176.2
C 8 222 4572 21.55 769 774 176.2
D 1 52 178895 964.78 756 734 184.7
D 1 83 150784 812.55 756 734 184.7
D 14 34 85587 459.5 756 734 184.7

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