ASTROSAT CZTI

Data Quality Report

Orbit 47162

Creation date: 2024-06-27T23:30:26.486520
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_071T08_9000006292_47162cztM0_level2.fits modeM0/AS1A13_071T08_9000006292_47162cztM0_level2_quad_clean.evt
Size (bytes)568,071,360113,742,720
Size541.8 MB 108.5 MB
Events in quadrant A7,604,039754,649
Events in quadrant B3,626,011786,068
Events in quadrant C3,264,511744,213
Events in quadrant D5,965,779648,844

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0279430
B0157620
C0152711
D0229880

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A73244005.461496%
B73251522.075085%
C7324741.010377%
D73247219.844347%

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 7324 7324 127 127 1.73% 1.73%
B 7325 7325 17 17 0.23% 0.23%
C 7324 7324 23 23 0.31% 0.31%
D 7324 7324 600 600 8.19% 8.19%

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 3984462 23535.35 813 793 169.3
A 14 235 386986 2281.61 813 793 169.3
A 9 191 27895 160.12 813 793 169.3
B 0 183 67115 411.58 813 788 161.2
B 0 190 57390 351.23 813 788 161.2
B 0 200 55822 341.5 813 788 161.2
C 14 254 88529 467.62 796 799 187.6
C 15 208 37459 195.41 796 799 187.6
C 3 233 14545 73.27 796 799 187.6
D 12 1 1750657 9006.25 777 750 194.3
D 1 47 359487 1846.31 777 750 194.3
D 12 218 210430 1079.16 777 750 194.3

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