ASTROSAT CZTI

Data Quality Report

Orbit 06343

Creation date: 2024-06-27T15:05:57.735504
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/AS1G06_132T01_9000000838_06343cztM0_level2.evt modeM0/AS1G06_132T01_9000000838_06343cztM0_level2_quad_clean.evt
Size (bytes)633,142,08092,439,360
Size603.8 MB 88.2 MB
Events in quadrant A3,409,443606,935
Events in quadrant B3,964,710606,593
Events in quadrant C3,314,258604,325
Events in quadrant D8,012,167493,143

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0148932
B0165691
C0151301
D0285641

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7000310.442857%
B70002273.242857%
C7000540.771429%
D7000153421.914286%

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 7375 7001 2 2 0.03% 0.03%
B 7375 7001 130 130 1.76% 1.86%
C 7375 7001 39 39 0.53% 0.56%
D 7375 7001 1462 1462 19.82% 20.88%

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 15 236 242129 1486.01 794 776 162.4
A 3 1 38783 234.01 794 776 162.4
A 13 251 32401 194.72 794 776 162.4
B 3 64 456341 2960.48 796 775 153.9
B 0 219 280567 1818.22 796 775 153.9
B 4 81 33392 211.96 796 775 153.9
C 4 254 323267 1827.57 761 765 176.5
C 9 54 7484 38.07 761 765 176.5
C 1 16 6601 33.07 761 765 176.5
D 12 220 1553340 9121.55 696 673 170.2
D 12 221 1522125 8938.17 696 673 170.2
D 1 239 1264249 7423.21 696 673 170.2

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