ASTROSAT CZTI

Data Quality Report

Orbit 15289

Creation date: 2024-06-27T17:06:18.908292
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_223T01_9000002258_15289cztM0_level2.evt modeM0/AS1A04_223T01_9000002258_15289cztM0_level2_quad_clean.evt
Size (bytes)482,912,64094,129,920
Size460.5 MB 89.8 MB
Events in quadrant A3,413,346588,535
Events in quadrant B3,790,871597,906
Events in quadrant C3,552,773587,315
Events in quadrant D3,363,556560,177

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0151873
B0159952
C0153412
D0153092

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7419300.404367%
B7419740.997439%
C7419180.242620%
D7419290.390888%

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 7760 7421 0 0 0.00% 0.00%
B 7760 7421 18 18 0.23% 0.24%
C 7760 7421 0 0 0.00% 0.00%
D 7760 7421 8 8 0.10% 0.11%

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 13156 67.85 884 864 181.2
A 0 226 7925 38.97 884 864 181.2
A 12 194 6500 31.11 884 864 181.2
B 10 16 68523 395.23 886 864 171.2
B 3 64 64166 369.78 886 864 171.2
B 0 229 43820 250.93 886 864 171.2
C 3 233 216878 1081.44 855 859 199.8
C 13 61 6054 26.01 855 859 199.8
C 7 247 2784 9.64 855 859 199.8
D 7 38 46940 220.81 852 828 208.8
D 2 152 33830 158.03 852 828 208.8
D 2 234 30386 141.54 852 828 208.8

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