ASTROSAT CZTI

Data Quality Report

Orbit 33077

Creation date: 2024-06-27T20:44:43.069950
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/AS1A11_007T07_9000004758_33077cztM0_level2.evt modeM0/AS1A11_007T07_9000004758_33077cztM0_level2_quad_clean.evt
Size (bytes)695,738,88063,541,440
Size663.5 MB 60.6 MB
Events in quadrant A2,347,056480,996
Events in quadrant B3,098,575463,195
Events in quadrant C3,546,767467,827
Events in quadrant D11,749,010168,856

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0980
B0980
C0980
D0980

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A099222
B0122491
C0136051
D0382461

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0320
B0320
C0320
D0330

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A486920.041076%
B48691893.881701%
C48692525.175601%
D4869394481.002259%

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 6991 4870 0 0 0.00% 0.00%
B 6991 4870 145 145 2.07% 2.98%
C 6991 4870 221 221 3.16% 4.54%
D 6990 4869 4066 4066 58.17% 83.51%

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 17 22870 186.72 596 585 119.3
A 13 254 11759 93.62 596 585 119.3
A 15 169 9777 77.02 596 585 119.3
B 5 172 480647 4413.15 583 569 108.8
B 5 200 108783 994.76 583 569 108.8
B 15 85 53078 482.69 583 569 108.8
C 8 111 734612 5566.19 573 578 131.9
C 7 221 253351 1916.78 573 578 131.9
C 0 10 199349 1507.28 573 578 131.9
D 7 223 8421897 91201.19 353 347 92.3
D 12 218 1252408 13559.2 353 347 92.3
D 8 195 317589 3435.57 353 347 92.3

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