ASTROSAT CZTI

Data Quality Report

Orbit 08146

Creation date: 2024-06-27T15:28:38.329147
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/AS1A03_051T01_9000001120_08146cztM0_level2.evt modeM0/AS1A03_051T01_9000001120_08146cztM0_level2_quad_clean.evt
Size (bytes)436,815,36064,638,720
Size416.6 MB 61.6 MB
Events in quadrant A3,125,694378,615
Events in quadrant B3,452,067379,812
Events in quadrant C3,128,795380,176
Events in quadrant D3,082,769367,292

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0160

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136013
B0144272
C0137382
D0137252

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6463931.438960%
B64631652.552994%
C6463861.330651%
D6463701.083088%

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 7559 6464 0 0 0.00% 0.00%
B 7559 6464 47 47 0.62% 0.73%
C 7559 6464 0 0 0.00% 0.00%
D 7559 6464 6 6 0.08% 0.09%

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 3 1 11380 64.58 808 791 164.0
A 0 226 7498 40.9 808 791 164.0
A 12 194 7372 40.13 808 791 164.0
B 5 255 217502 1418.92 806 787 152.7
B 10 16 45679 293.93 806 787 152.7
B 0 214 27552 175.24 806 787 152.7
C 1 16 58547 318.68 787 791 181.2
C 13 61 5978 28.62 787 791 181.2
C 14 67 2715 10.62 787 791 181.2
D 7 71 51947 268.16 781 761 190.9
D 1 52 36718 188.38 781 761 190.9
D 2 234 20874 105.37 781 761 190.9

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