ASTROSAT CZTI

Data Quality Report

Orbit 14723

Creation date: 2024-06-27T16:58:55.792528
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/AS1A04_048T01_9000002176_14723cztM0_level2.evt modeM0/AS1A04_048T01_9000002176_14723cztM0_level2_quad_clean.evt
Size (bytes)513,305,28099,008,640
Size489.5 MB 94.4 MB
Events in quadrant A3,278,752653,867
Events in quadrant B3,406,512645,146
Events in quadrant C4,130,754622,649
Events in quadrant D4,266,645601,382

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142033
B0145282
C0167032
D0175082

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6822180.263852%
B6822520.762240%
C6822991.451187%
D68223044.456171%

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 7583 6824 0 0 0.00% 0.00%
B 7583 6824 22 22 0.29% 0.32%
C 7583 6824 76 76 1.00% 1.11%
D 7583 6824 326 326 4.30% 4.78%

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 12 189 52922 308.83 818 802 168.8
A 3 1 31171 179.94 818 802 168.8
A 8 15 21239 121.09 818 802 168.8
B 0 205 56388 356.55 812 794 155.9
B 10 16 55878 353.28 812 794 155.9
B 0 230 30778 192.3 812 794 155.9
C 3 233 655168 3646.92 774 778 179.4
C 4 254 437930 2436.25 774 778 179.4
C 0 207 11445 59.45 774 778 179.4
D 1 255 1142595 5608.83 766 751 203.6
D 12 16 70386 342.05 766 751 203.6
D 15 217 37995 182.94 766 751 203.6

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