ASTROSAT CZTI

Data Quality Report

Orbit 45634

Creation date: 2024-06-27T23:14:25.712608
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_071T08_9000006114_45634cztM0_level2.fits modeM0/AS1A13_071T08_9000006114_45634cztM0_level2_quad_clean.evt
Size (bytes)514,872,000104,630,400
Size491.0 MB 99.8 MB
Events in quadrant A5,466,313721,595
Events in quadrant B3,762,840726,119
Events in quadrant C2,812,104711,710
Events in quadrant D6,546,431584,155

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0197862
B0150461
C0126011
D0236621

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A60771662.731611%
B60782984.902929%
C6078310.510036%
D607889814.774597%

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 7282 6078 10 10 0.14% 0.16%
B 7283 6079 175 175 2.40% 2.88%
C 7283 6079 7 7 0.10% 0.12%
D 7283 6079 676 676 9.28% 11.12%

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 2592113 17651.41 718 703 146.8
A 10 248 39322 263.05 718 703 146.8
A 0 243 31884 212.39 718 703 146.8
B 5 172 737666 5408.2 706 687 136.3
B 3 112 86798 631.91 706 687 136.3
B 0 186 47021 340.01 706 687 136.3
C 2 14 34605 207.15 698 700 163.7
C 14 254 31625 188.94 698 700 163.7
C 12 2 16050 93.78 698 700 163.7
D 11 241 1269156 7436.66 668 647 170.6
D 13 249 1225476 7180.58 668 647 170.6
D 1 52 958539 5615.66 668 647 170.6

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