ASTROSAT CZTI

Data Quality Report

Orbit 46332

Creation date: 2024-06-27T23:21:50.852773
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_200T01_9000006196_46332cztM0_level2.fits modeM0/AS1T05_200T01_9000006196_46332cztM0_level2_quad_clean.evt
Size (bytes)765,504,00091,679,040
Size730.0 MB 87.4 MB
Events in quadrant A14,355,405248,592
Events in quadrant B5,525,503736,405
Events in quadrant C2,981,216723,944
Events in quadrant D4,948,506594,470

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0472815
B0211831
C0140581
D0196801

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D070

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6774491072.483023%
B67744136.096841%
C6775570.841328%
D677576611.306273%

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 7474 6775 3671 3671 49.12% 54.18%
B 7474 6775 184 184 2.46% 2.72%
C 7475 6776 10 10 0.13% 0.15%
D 7475 6776 638 638 8.54% 9.42%

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 15 223 10236047 102131.28 482 472 100.2
A 10 83 1910462 19058.01 482 472 100.2
A 9 191 311727 3105.72 482 472 100.2
B 3 112 1728329 11632.31 750 727 148.5
B 5 172 329341 2212.63 750 727 148.5
B 8 234 279312 1875.77 750 727 148.5
C 12 2 56910 320.62 742 745 175.2
C 12 249 14198 76.8 742 745 175.2
C 1 3 13902 75.11 742 745 175.2
D 13 249 2022622 11963.53 677 656 169.0
D 12 128 80131 470.24 677 656 169.0
D 1 232 68969 404.19 677 656 169.0

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