ASTROSAT CZTI

Data Quality Report

Orbit 46189

Creation date: 2024-06-27T23:20:10.567339
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_093T40_9000006182_46189cztM0_level2.fits modeM0/AS1A13_093T40_9000006182_46189cztM0_level2_quad_clean.evt
Size (bytes)592,896,960130,256,640
Size565.4 MB 124.2 MB
Events in quadrant A7,087,123872,807
Events in quadrant B4,843,538898,341
Events in quadrant C3,764,867855,762
Events in quadrant D5,612,687744,562

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01660
B01660
C01660
D01660

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0265231
B0200301
C0173751
D0224031

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A82393223.908241%
B82402823.422330%
C8240891.080097%
D82405576.759709%

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 8574 8240 3 3 0.03% 0.04%
B 8575 8241 44 44 0.51% 0.53%
C 8575 8241 17 17 0.20% 0.21%
D 8574 8240 386 386 4.50% 4.68%

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 3413609 17755.33 926 903 192.2
A 0 247 30713 155.09 926 903 192.2
A 13 248 28338 142.74 926 903 192.2
B 3 112 840110 4569.01 927 894 183.7
B 5 172 169629 918.66 927 894 183.7
B 4 171 61329 329.03 927 894 183.7
C 12 2 115886 535.96 909 910 214.5
C 14 254 48973 224.05 909 910 214.5
C 11 16 21345 95.26 909 910 214.5
D 8 128 840678 3785.24 891 860 221.9
D 1 52 779076 3507.58 891 860 221.9
D 13 249 295680 1328.82 891 860 221.9

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