ASTROSAT CZTI

Data Quality Report

Orbit 30002

Creation date: 2024-06-27T20:09:44.723708
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/AS1A10_071T01_9000004310_30002cztM0_level2.evt modeM0/AS1A10_071T01_9000004310_30002cztM0_level2_quad_clean.evt
Size (bytes)638,184,96089,066,880
Size608.6 MB 84.9 MB
Events in quadrant A3,298,147575,588
Events in quadrant B8,591,463547,440
Events in quadrant C3,480,704551,385
Events in quadrant D3,496,133547,315

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139822
B0302714
C0145492
D0147752

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0190

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6814280.410919%
B681492113.516290%
C6814971.423540%
D6814460.675081%

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 8764 6816 5 5 0.06% 0.07%
B 8764 6816 454 454 5.18% 6.66%
C 8764 6816 0 0 0.00% 0.00%
D 8764 6816 32 32 0.37% 0.47%

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 8 192 27542 157.22 848 832 169.9
A 13 254 11634 63.58 848 832 169.9
A 3 137 8361 44.32 848 832 169.9
B 6 36 3526167 22414.84 815 795 157.3
B 6 159 1850765 11762.38 815 795 157.3
B 12 111 19628 119.74 815 795 157.3
C 14 238 151842 794.91 807 813 190.0
C 3 233 141076 738.24 807 813 190.0
C 14 254 30000 153.62 807 813 190.0
D 8 195 153263 780.4 810 793 195.4
D 7 80 91013 461.78 810 793 195.4
D 10 199 90552 459.42 810 793 195.4

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