ASTROSAT CZTI

Data Quality Report

Orbit 20240414_A13_093T12_9000006184_level2

Creation date: 2024-04-17T10:54:50.277100
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_9000006184cztM0_level2.fits modeM0/AS1A13_093T12_9000006184cztM0_level2_quad_clean.evt
Size (bytes)303,249,600379,149,120
Size289.2 MB 361.6 MB
Events in quadrant A1,766,7002,329,890
Events in quadrant B1,753,9242,412,875
Events in quadrant C1,838,3402,375,762
Events in quadrant D1,547,3542,088,539

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01119730
B0790530
C0719880
D0894720

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0590
B0590
C0590
D0590

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A06720
B06720
C06720
D06720

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3313514634.415271%
B331378792.652624%
C331355711.723253%
D3313416765.058248%

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 38956 33129 0 0 0.00% 0.00%
B 38957 33134 0 0 0.00% 0.00%
C 38956 33128 0 0 0.00% 0.00%
D 38956 33119 0 0 0.00% 0.00%

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 7 110 1424 8.43 460 433 117.5
A 14 95 1362 7.9 460 433 117.5
A 9 19 1349 7.79 460 433 117.5
B 2 9 1688 13.24 464 441 94.2
B 2 8 1344 9.59 464 441 94.2
B 5 128 1201 8.07 464 441 94.2
C 3 202 1423 7.61 487 456 127.1
C 3 203 1413 7.53 487 456 127.1
C 1 81 1390 7.35 487 456 127.1
D 15 47 1205 6.55 443 404 122.3
D 10 189 1185 6.39 443 404 122.3
D 1 31 1108 5.76 443 404 122.3

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