ASTROSAT CZTI

Data Quality Report

Orbit 46818

Creation date: 2024-06-27T23:28:03.326768
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/AS1C07_001T10_9000006272_46818cztM0_level2.fits modeM0/AS1C07_001T10_9000006272_46818cztM0_level2_quad_clean.evt
Size (bytes)467,743,68099,861,120
Size446.1 MB 95.2 MB
Events in quadrant A6,215,481661,589
Events in quadrant B3,509,172679,521
Events in quadrant C2,760,749660,218
Events in quadrant D4,336,993580,212

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0231261
B0146141
C0130161
D0171551

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63362103.314394%
B63361752.761995%
C6337550.867919%
D63373175.002367%

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 7306 6337 36 36 0.49% 0.57%
B 7306 6337 80 80 1.09% 1.26%
C 7307 6338 12 12 0.16% 0.19%
D 7307 6338 206 206 2.82% 3.25%

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 3380310 23700.88 687 671 142.6
A 13 248 84611 588.66 687 671 142.6
A 0 243 33244 228.43 687 671 142.6
B 3 112 263326 1960.26 683 661 134.0
B 12 3 178692 1328.64 683 661 134.0
B 5 32 98955 733.56 683 661 134.0
C 14 254 73715 458.23 679 681 159.4
C 0 207 24029 146.49 679 681 159.4
C 12 249 10633 62.44 679 681 159.4
D 13 249 853318 5138.48 662 641 165.9
D 1 52 433408 2607.98 662 641 165.9
D 10 181 136441 818.37 662 641 165.9

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