ASTROSAT CZTI

Data Quality Report

Orbit 47307

Creation date: 2024-06-27T17:54:25.385819
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_093T12_9000006314_47307cztM0_level2.fits modeM0/AS1A13_093T12_9000006314_47307cztM0_level2_quad_clean.evt
Size (bytes)496,592,64084,726,720
Size473.6 MB 80.8 MB
Events in quadrant A7,879,154510,920
Events in quadrant B2,948,300595,650
Events in quadrant C2,903,267577,469
Events in quadrant D4,213,418486,105

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01140
B01140
C01140
D01140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0275303
B0126250
C0128000
D0167010

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A564194916.823258%
B56421262.233251%
C56431162.055644%
D564359110.473153%

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 5642 5642 683 683 12.11% 12.11%
B 5642 5642 33 33 0.58% 0.58%
C 5643 5643 74 74 1.31% 1.31%
D 5643 5643 467 467 8.28% 8.28%

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 2870785 23741.44 580 568 120.9
A 15 235 2016524 16675.29 580 568 120.9
A 9 191 356653 2945.41 580 568 120.9
B 7 221 204992 1732.03 602 583 118.0
B 0 200 99026 834.14 602 583 118.0
B 0 198 90015 757.79 602 583 118.0
C 12 2 356042 2516.54 593 594 141.2
C 14 254 175161 1235.92 593 594 141.2
C 3 233 59935 420.13 593 594 141.2
D 12 2 1798434 12583.49 566 548 142.9
D 12 128 43937 303.68 566 548 142.9
D 13 171 42564 294.07 566 548 142.9

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