ASTROSAT CZTI

Data Quality Report

Orbit 19223

Creation date: 2024-06-27T18:00:09.439698
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/AS1A05_007T06_9000002844_19223cztM0_level2.evt modeM0/AS1A05_007T06_9000002844_19223cztM0_level2_quad_clean.evt
Size (bytes)463,392,000116,150,400
Size441.9 MB 110.8 MB
Events in quadrant A3,091,787765,212
Events in quadrant B3,173,241795,884
Events in quadrant C3,732,988774,618
Events in quadrant D3,611,082745,802

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
A0132842
B0134562
C0152892
D0148952

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6249861.376220%
B62491111.776284%
C62491832.928469%
D62492043.264522%

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 8874 6251 2 2 0.02% 0.03%
B 8874 6251 1 1 0.01% 0.02%
C 8874 6251 1 1 0.01% 0.02%
D 8874 6251 131 131 1.48% 2.10%

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 20818 126.42 794 779 158.5
A 13 254 8873 51.06 794 779 158.5
A 11 29 8224 46.97 794 779 158.5
B 12 111 17402 111.8 805 786 148.6
B 11 111 15146 96.62 805 786 148.6
B 14 111 13208 83.58 805 786 148.6
C 3 233 534874 2966.61 785 793 180.0
C 14 238 123279 680.36 785 793 180.0
C 0 207 5841 28.04 785 793 180.0
D 11 176 592662 3163.94 785 766 187.1
D 2 234 23332 120.63 785 766 187.1
D 2 120 17703 90.54 785 766 187.1

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