ASTROSAT CZTI

Data Quality Report

Orbit 41397

Creation date: 2024-06-27T22:29:04.108807
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/AS1T05_108T01_9000005664_41397cztM0_level2.fits modeM0/AS1T05_108T01_9000005664_41397cztM0_level2_quad_clean.evt
Size (bytes)320,676,48090,581,760
Size305.8 MB 86.4 MB
Events in quadrant A2,959,484605,570
Events in quadrant B2,735,299616,699
Events in quadrant C3,095,614575,130
Events in quadrant D2,644,123554,151

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0124013
B0120862
C0128252
D0118182

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0190

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01140
B01140
C01140
D01140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5591170.304060%
B5591601.073153%
C55912264.042211%
D5591170.304060%

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 7203 5592 6 6 0.08% 0.11%
B 7203 5592 33 33 0.46% 0.59%
C 7203 5592 210 210 2.92% 3.76%
D 7203 5592 12 12 0.17% 0.21%

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 542332 4352.12 599 586 124.5
A 13 248 42754 338.76 599 586 124.5
A 12 189 24856 194.97 599 586 124.5
B 5 255 240252 2075.64 597 580 115.5
B 0 190 117586 1013.31 597 580 115.5
B 12 111 15122 125.94 597 580 115.5
C 0 10 602655 4483.61 576 578 134.3
C 15 214 230900 1715.19 576 578 134.3
C 15 111 6869 46.85 576 578 134.3
D 12 79 173484 1193.95 592 573 144.8
D 5 222 76042 521.11 592 573 144.8
D 1 52 50382 343.93 592 573 144.8

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