ASTROSAT CZTI

Data Quality Report

Orbit 05518

Creation date: 2024-06-27T14:56:12.764258
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/AS1G06_168T23_9000000706_05518cztM0_level2.evt modeM0/AS1G06_168T23_9000000706_05518cztM0_level2_quad_clean.evt
Size (bytes)560,911,68074,652,480
Size534.9 MB 71.2 MB
Events in quadrant A3,490,370451,032
Events in quadrant B4,164,965437,991
Events in quadrant C4,666,611423,698
Events in quadrant D4,156,262425,241

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0156723
B0174332
C0191232
D0175642

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7499941.253500%
B74992012.680357%
C74993044.053874%
D7499851.133484%

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 7904 7502 11 11 0.14% 0.15%
B 7904 7502 55 55 0.70% 0.73%
C 7904 7501 137 137 1.73% 1.83%
D 7904 7502 30 30 0.38% 0.40%

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 15 174 62350 343.0 873 851 179.3
A 0 50 28880 156.33 873 851 179.3
A 7 16 23490 126.26 873 851 179.3
B 10 16 272505 1588.39 879 857 171.0
B 15 204 215771 1256.65 879 857 171.0
B 7 221 46310 265.77 879 857 171.0
C 9 247 1190426 6051.28 836 839 196.6
C 1 16 167931 849.98 836 839 196.6
C 14 67 18826 91.5 836 839 196.6
D 9 85 252950 1199.99 847 819 210.1
D 2 152 211394 1002.21 847 819 210.1
D 2 63 124245 587.43 847 819 210.1

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