ASTROSAT CZTI

Data Quality Report

Orbit 11330

Creation date: 2024-06-27T16:11:23.111440
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/AS1G08_062T01_9000001660_11330cztM0_level2.evt modeM0/AS1G08_062T01_9000001660_11330cztM0_level2_quad_clean.evt
Size (bytes)526,190,40089,251,200
Size501.8 MB 85.1 MB
Events in quadrant A3,164,256582,664
Events in quadrant B5,345,961548,813
Events in quadrant C2,878,039578,940
Events in quadrant D4,116,192548,613

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135212
B0202041
C0129571
D0165711

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6360570.896226%
B636068410.754717%
C6360140.220126%
D63601722.704403%

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 7500 6361 27 27 0.36% 0.42%
B 7500 6361 459 459 6.12% 7.22%
C 7500 6361 0 0 0.00% 0.00%
D 7500 6361 149 149 1.99% 2.34%

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 8 15 98442 635.54 758 740 153.7
A 15 174 91194 588.39 758 740 153.7
A 1 162 19345 121.02 758 740 153.7
B 4 239 1459943 10589.48 730 712 137.8
B 3 64 899770 6524.37 730 712 137.8
B 15 204 36101 256.81 730 712 137.8
C 13 61 5451 27.6 736 741 170.6
C 9 54 3891 18.46 736 741 170.6
C 14 234 2011 7.44 736 741 170.6
D 1 52 451009 2604.87 730 711 172.9
D 2 120 292506 1687.97 730 711 172.9
D 10 253 153443 883.52 730 711 172.9

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