ASTROSAT CZTI

Data Quality Report

Orbit 47107

Creation date: 2024-06-27T23:31:48.823644
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/AS1C09_003T01_9000006298_47107cztM0_level2.fits modeM0/AS1C09_003T01_9000006298_47107cztM0_level2_quad_clean.evt
Size (bytes)483,145,920110,367,360
Size460.8 MB 105.3 MB
Events in quadrant A6,992,819722,504
Events in quadrant B3,437,587750,746
Events in quadrant C3,216,785718,200
Events in quadrant D3,697,757665,502

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C090
D090

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0252922
B0150672
C0147482
D0161422

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A69533154.530419%
B6953841.208112%
C6952430.618527%
D6952941.352129%

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 7798 6954 88 88 1.13% 1.27%
B 7798 6954 40 40 0.51% 0.58%
C 7797 6953 15 15 0.19% 0.22%
D 7797 6953 56 56 0.72% 0.81%

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 10 83 3937541 25087.54 754 739 156.9
A 0 247 46201 289.71 754 739 156.9
A 7 3 18521 113.32 754 739 156.9
B 5 32 195778 1296.97 761 736 150.4
B 0 200 68762 452.35 761 736 150.4
B 4 21 37921 247.27 761 736 150.4
C 14 254 156831 886.66 750 754 176.0
C 12 2 119744 675.97 750 754 176.0
C 14 67 8836 45.91 750 754 176.0
D 2 249 271285 1437.78 748 724 188.2
D 1 47 196318 1039.4 748 724 188.2
D 13 171 68786 361.69 748 724 188.2

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