ASTROSAT CZTI

Data Quality Report

Orbit 10193

Creation date: 2024-06-27T15:56:11.074435
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/AS1A03_050T01_9000001468_10193cztM0_level2.evt modeM0/AS1A03_050T01_9000001468_10193cztM0_level2_quad_clean.evt
Size (bytes)483,278,400118,056,960
Size460.9 MB 112.6 MB
Events in quadrant A3,277,971772,318
Events in quadrant B3,753,463773,061
Events in quadrant C3,193,382780,990
Events in quadrant D3,919,338745,382

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0149222
B0160221
C0146941
D0163931

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7235360.497581%
B72351081.492744%
C7235150.207326%
D7235580.801659%

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 7640 7236 5 5 0.07% 0.07%
B 7640 7236 26 26 0.34% 0.36%
C 7640 7236 2 2 0.03% 0.03%
D 7640 7236 33 33 0.43% 0.46%

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 15 223 39576 232.75 827 809 166.6
A 15 174 27868 162.45 827 809 166.6
A 15 239 18095 103.78 827 809 166.6
B 11 51 181780 1154.56 827 806 156.7
B 4 239 95550 604.44 827 806 156.7
B 6 51 77028 486.28 827 806 156.7
C 14 67 37093 195.9 802 806 185.2
C 12 4 12857 65.06 802 806 185.2
C 13 61 6012 28.1 802 806 185.2
D 8 195 349737 1822.86 796 771 191.4
D 5 222 99005 513.13 796 771 191.4
D 7 71 84763 438.74 796 771 191.4

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