ASTROSAT CZTI

Data Quality Report

Orbit 16075

Creation date: 2024-06-27T17:17:35.327506
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_230T01_9000002374_16075cztM0_level2.evt modeM0/AS1A04_230T01_9000002374_16075cztM0_level2_quad_clean.evt
Size (bytes)517,559,04089,023,680
Size493.6 MB 84.9 MB
Events in quadrant A4,016,960553,641
Events in quadrant B3,818,995557,596
Events in quadrant C3,587,603537,993
Events in quadrant D3,747,133530,411

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0150

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0164753
B0158752
C0152362
D0160292

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A74121181.592013%
B74121642.212628%
C74121351.821371%
D7412751.011873%

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 8933 7413 17 17 0.19% 0.23%
B 8933 7413 37 37 0.41% 0.50%
C 8933 7413 4 4 0.04% 0.05%
D 8933 7413 1 1 0.01% 0.01%

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 3 80 451387 2457.97 905 883 183.3
A 9 143 33071 175.62 905 883 183.3
A 15 174 23990 126.07 905 883 183.3
B 4 173 140984 802.14 903 880 174.7
B 7 220 29894 166.11 903 880 174.7
B 4 216 29255 162.46 903 880 174.7
C 14 238 132092 639.71 866 873 205.1
C 3 233 45663 218.36 866 873 205.1
C 0 207 16347 75.44 866 873 205.1
D 1 52 344821 1593.16 881 856 215.9
D 2 152 56621 258.29 881 856 215.9
D 2 234 26605 119.26 881 856 215.9

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