ASTROSAT CZTI

Data Quality Report

Orbit 43718

Creation date: 2024-06-27T22:54:57.015259
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/AS1A13_003T01_9000005902_43718cztM0_level2.fits modeM0/AS1A13_003T01_9000005902_43718cztM0_level2_quad_clean.evt
Size (bytes)666,020,160100,411,200
Size635.2 MB 95.8 MB
Events in quadrant A6,749,825720,398
Events in quadrant B3,659,555759,700
Events in quadrant C8,309,624492,727
Events in quadrant D5,440,080621,597

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0245842
B0149592
C0291062
D0205845

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63893235.055564%
B63892203.443418%
C6390228035.680751%
D63895919.250274%

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 7479 6390 127 127 1.70% 1.99%
B 7479 6390 71 71 0.95% 1.11%
C 7479 6386 1485 1485 19.86% 23.25%
D 7479 6389 430 430 5.75% 6.73%

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 15 222 2299784 14913.08 750 736 154.2
A 10 83 827728 5364.39 750 736 154.2
A 15 223 451674 2925.07 750 736 154.2
B 5 235 387034 2618.91 755 733 147.5
B 4 171 134875 909.41 755 733 147.5
B 0 199 85175 572.47 755 733 147.5
C 15 157 5284350 37188.81 602 606 142.1
C 3 233 342131 2403.77 602 606 142.1
C 15 158 228193 1601.84 602 606 142.1
D 7 80 936445 5099.66 718 696 183.5
D 12 33 241234 1310.89 718 696 183.5
D 1 52 160710 872.05 718 696 183.5

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