ASTROSAT CZTI

Data Quality Report

Orbit 44348

Creation date: 2024-06-27T23:02:30.737033
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/AS1A13_008T06_9000005994_44348cztM0_level2.fits modeM0/AS1A13_008T06_9000005994_44348cztM0_level2_quad_clean.evt
Size (bytes)638,821,440119,229,120
Size609.2 MB 113.7 MB
Events in quadrant A9,593,563675,778
Events in quadrant B4,008,172853,853
Events in quadrant C3,804,431821,925
Events in quadrant D5,638,380718,115

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0342180
B0172010
C0169781
D0221520

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7772162720.934122%
B7773921.183584%
C7772490.630468%
D77725206.690685%

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 7772 7772 1396 1396 17.96% 17.96%
B 7773 7773 31 31 0.40% 0.40%
C 7772 7772 33 33 0.42% 0.42%
D 7772 7772 465 465 5.98% 5.98%

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 15 223 3644131 22279.91 789 772 163.5
A 10 83 1584963 9687.66 789 772 163.5
A 13 248 1253764 7662.31 789 772 163.5
B 0 219 117245 666.08 878 851 174.7
B 5 172 101360 575.18 878 851 174.7
B 0 190 77238 437.13 878 851 174.7
C 14 254 338584 1656.78 859 865 203.8
C 14 96 37558 180.01 859 865 203.8
C 1 3 34989 167.41 859 865 203.8
D 5 235 815244 3838.95 837 811 212.2
D 13 249 668751 3148.43 837 811 212.2
D 2 153 174725 819.77 837 811 212.2

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