ASTROSAT CZTI

Data Quality Report

Orbit 03158

Creation date: 2024-06-27T14:25:21.201668
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/AS1G05_218T02_9000000434_03158cztM0_level2.evt modeM0/AS1G05_218T02_9000000434_03158cztM0_level2_quad_clean.evt
Size (bytes)536,227,20096,370,560
Size511.4 MB 91.9 MB
Events in quadrant A3,110,983630,168
Events in quadrant B3,126,710639,041
Events in quadrant C6,084,144580,950
Events in quadrant D3,459,402597,531

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140392
B0139941
C0227981
D0152311

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67481592.356254%
B67481301.926497%
C674888113.055720%
D67481952.889745%

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 7348 6748 1 1 0.01% 0.01%
B 7348 6748 3 3 0.04% 0.04%
C 7348 6749 624 624 8.49% 9.25%
D 7348 6748 65 65 0.88% 0.96%

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 14 238 46061 290.29 762 744 156.1
A 0 199 38172 239.75 762 744 156.1
A 12 247 28275 176.35 762 744 156.1
B 4 81 29874 197.46 772 753 147.5
B 2 249 22496 147.43 772 753 147.5
B 0 183 18964 123.49 772 753 147.5
C 14 223 3187419 19544.67 703 703 163.0
C 6 80 38141 229.61 703 703 163.0
C 1 16 35837 215.48 703 703 163.0
D 2 136 363534 2048.01 732 709 177.2
D 5 233 62212 347.16 732 709 177.2
D 13 120 59327 330.88 732 709 177.2

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