ASTROSAT CZTI

Data Quality Report

Orbit 44593

Creation date: 2024-06-27T23:04:18.301562
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_009T03_9000006006_44593cztM0_level2.fits modeM0/AS1A13_009T03_9000006006_44593cztM0_level2_quad_clean.evt
Size (bytes)615,827,520113,578,560
Size587.3 MB 108.3 MB
Events in quadrant A8,052,526707,037
Events in quadrant B4,217,095781,030
Events in quadrant C4,649,487760,579
Events in quadrant D5,310,046681,456

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B080
C080
D080

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02913211
B0174613
C0188797
D0206413

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7303114315.651102%
B73045767.886090%
C73034826.600027%
D73046078.310515%

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 7804 7303 394 394 5.05% 5.40%
B 7804 7304 243 243 3.11% 3.33%
C 7803 7303 341 341 4.37% 4.67%
D 7804 7305 446 446 5.72% 6.11%

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 2910310 17087.4 816 798 170.3
A 10 83 1888490 11086.31 816 798 170.3
A 13 248 53949 312.15 816 798 170.3
B 5 172 763682 4498.86 843 814 169.6
B 0 155 41743 241.37 843 814 169.6
B 4 216 28385 162.59 843 814 169.6
C 12 2 1218445 6197.14 833 839 196.5
C 14 254 147836 748.16 833 839 196.5
C 3 233 12089 57.26 833 839 196.5
D 13 249 1301151 6274.69 822 796 207.2
D 1 52 426173 2052.6 822 796 207.2
D 7 96 112121 537.18 822 796 207.2

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