ASTROSAT CZTI

Data Quality Report

Orbit 11039

Creation date: 2024-06-27T16:07:20.172320
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_113T02_9000001606_11039cztM0_level2.evt modeM0/AS1A04_113T02_9000001606_11039cztM0_level2_quad_clean.evt
Size (bytes)470,249,28063,391,680
Size448.5 MB 60.5 MB
Events in quadrant A5,138,759372,214
Events in quadrant B3,017,269399,118
Events in quadrant C2,326,079403,323
Events in quadrant D3,405,996379,763

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01887471
B01250228
C01056323
D01374032

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A520381015.567942%
B52051753.362152%
C5206100.192086%
D52061202.305033%

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 6297 5215 691 691 10.97% 13.25%
B 6298 5219 106 106 1.68% 2.03%
C 6298 5219 0 0 0.00% 0.00%
D 6298 5219 93 93 1.48% 1.78%

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 8 5 1802312 15423.41 568 556 116.8
A 14 238 1121460 9595.17 568 556 116.8
A 14 254 12397 101.36 568 556 116.8
B 4 239 611092 5248.98 605 589 116.3
B 11 51 20541 171.54 605 589 116.3
B 0 214 16296 135.05 605 589 116.3
C 14 234 4780 30.21 595 600 138.3
C 13 61 4305 26.78 595 600 138.3
C 3 202 1516 6.62 595 600 138.3
D 14 34 545531 3845.14 585 567 141.7
D 11 129 207066 1457.01 585 567 141.7
D 1 52 123061 864.29 585 567 141.7

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