ASTROSAT CZTI

Data Quality Report

Orbit 00162

Creation date: 2024-06-27T13:57:14.218175
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/AS1P01_120T01_9000000006_00162cztM0_level2.evt modeM0/AS1P01_120T01_9000000006_00162cztM0_level2_quad_clean.evt
Size (bytes)490,495,68039,165,120
Size467.8 MB 37.4 MB
Events in quadrant A3,703,207240,651
Events in quadrant B3,940,678241,658
Events in quadrant C3,586,132240,826
Events in quadrant D3,409,809235,508

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A08614
B08612
C08717
D08917

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0171
B0160
C0160
D0182

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0177654512
B0185804621
C0171374219
D0169264511

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3181130.408677%
B3184110.345477%
C318780.251020%
D3186150.470810%

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 6895 3232 100 100 1.45% 3.09%
B 6894 3246 140 140 2.03% 4.31%
C 6894 3244 67 67 0.97% 2.07%
D 6896 3255 73 73 1.06% 2.24%

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 0 86 33096 154.99 932 927 207.6
A 14 10 30802 143.94 932 927 207.6
A 13 17 9290 40.29 932 927 207.6
B 10 199 144326 642.74 942 950 223.1
B 5 216 79216 350.86 942 950 223.1
B 5 85 74014 327.54 942 950 223.1
C 1 1 193241 810.78 850 885 237.2
C 3 32 11340 44.07 850 885 237.2
C 0 188 10970 42.51 850 885 237.2
D 10 202 61796 236.79 836 864 257.3
D 13 223 50813 194.11 836 864 257.3
D 2 106 24353 91.28 836 864 257.3

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