ASTROSAT CZTI

Data Quality Report

Orbit 15112

Creation date: 2024-06-27T17:03:50.550765
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/AS1A04_130T03_9000002224_15112cztM0_level2.evt modeM0/AS1A04_130T03_9000002224_15112cztM0_level2_quad_clean.evt
Size (bytes)494,801,28094,723,200
Size471.9 MB 90.3 MB
Events in quadrant A3,198,187614,615
Events in quadrant B4,689,900604,900
Events in quadrant C3,415,011617,508
Events in quadrant D3,252,611589,944

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133023
B0181442
C0136732
D0136872

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6329460.726813%
B63293695.830305%
C6329430.679412%
D6329340.537210%

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 8950 6332 1 1 0.01% 0.02%
B 8950 6331 168 168 1.88% 2.65%
C 8950 6332 0 0 0.00% 0.00%
D 8950 6332 10 10 0.11% 0.16%

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 9 143 15723 91.02 823 806 163.9
A 15 239 10247 57.61 823 806 163.9
A 12 189 8381 46.22 823 806 163.9
B 10 245 923742 6089.74 803 783 151.6
B 3 64 567058 3736.32 803 783 151.6
B 0 229 44649 289.43 803 783 151.6
C 3 233 220978 1184.37 810 817 185.9
C 4 254 31440 164.74 810 817 185.9
C 13 61 5620 25.84 810 817 185.9
D 2 14 132876 672.76 810 788 196.3
D 10 70 27160 134.32 810 788 196.3
D 2 234 23709 116.74 810 788 196.3

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