ASTROSAT CZTI

Data Quality Report

Orbit 30122

Creation date: 2024-06-27T20:11:10.819106
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/AS1A10_097T01_9000004334_30122cztM0_level2.evt modeM0/AS1A10_097T01_9000004334_30122cztM0_level2_quad_clean.evt
Size (bytes)535,959,360112,207,680
Size511.1 MB 107.0 MB
Events in quadrant A3,214,054746,143
Events in quadrant B4,973,383748,392
Events in quadrant C3,800,991740,646
Events in quadrant D3,822,293729,297

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132522
B0190132
C0153972
D0153172

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6217550.884671%
B62181161.865552%
C62181622.605339%
D6218641.029270%

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 7487 6218 1 1 0.01% 0.02%
B 7488 6219 2 2 0.03% 0.03%
C 7488 6219 0 0 0.00% 0.00%
D 7488 6219 9 9 0.12% 0.14%

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 8 192 11854 68.02 829 814 162.3
A 13 254 11772 67.51 829 814 162.3
A 3 137 7425 40.73 829 814 162.3
B 6 159 1721154 11296.8 822 803 152.3
B 0 190 19648 123.75 822 803 152.3
B 12 111 18058 113.31 822 803 152.3
C 3 233 413478 2174.22 823 834 189.8
C 14 238 140608 736.47 823 834 189.8
C 2 114 14515 72.09 823 834 189.8
D 1 52 366490 1829.3 825 810 199.9
D 8 195 162996 811.33 825 810 199.9
D 13 104 101847 505.43 825 810 199.9

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