ASTROSAT CZTI

Data Quality Report

Orbit 09967

Creation date: 2024-06-27T15:53:06.097413
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/AS1G07_047T01_9000001424_09967cztM0_level2.evt modeM0/AS1G07_047T01_9000001424_09967cztM0_level2_quad_clean.evt
Size (bytes)447,120,00089,637,120
Size426.4 MB 85.5 MB
Events in quadrant A2,949,194573,676
Events in quadrant B3,102,274582,207
Events in quadrant C2,735,320580,985
Events in quadrant D4,336,838548,784

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A013046104
B013260123
C01256279
D017196162

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01262
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6145941.529699%
B61351031.678892%
C6151470.764103%
D61331973.212131%

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 7085 6186 40 40 0.56% 0.65%
B 7085 6187 31 31 0.44% 0.50%
C 7085 6187 0 0 0.00% 0.00%
D 7085 6187 128 128 1.81% 2.07%

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 15 174 160516 1080.24 723 708 147.9
A 0 226 6633 40.05 723 708 147.9
A 12 194 6193 37.08 723 708 147.9
B 4 239 122149 869.55 722 704 139.7
B 0 214 63071 446.55 722 704 139.7
B 4 81 44523 313.75 722 704 139.7
C 13 61 5221 27.71 700 702 163.1
C 14 67 4614 23.99 700 702 163.1
C 8 222 2508 11.07 700 702 163.1
D 1 52 710495 4129.11 684 666 171.9
D 2 16 335506 1947.78 684 666 171.9
D 2 152 218281 1265.88 684 666 171.9

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