ASTROSAT CZTI

Data Quality Report

Orbit 06660

Creation date: 2024-06-27T15:09:59.637999
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/AS1A02_103T01_9000000904_06660cztM0_level2.evt modeM0/AS1A02_103T01_9000000904_06660cztM0_level2_quad_clean.evt
Size (bytes)529,375,68089,703,360
Size504.9 MB 85.5 MB
Events in quadrant A3,192,960562,156
Events in quadrant B3,327,493577,181
Events in quadrant C3,219,401563,971
Events in quadrant D5,820,452528,712

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0144023
B0147162
C0145712
D0221182

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0190

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6957560.804945%
B6957781.121173%
C6957470.675579%
D695771810.320540%

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 7902 6958 1 1 0.01% 0.01%
B 7902 6958 1 1 0.01% 0.01%
C 7902 6958 3 3 0.04% 0.04%
D 7902 6958 448 448 5.67% 6.44%

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 8 15 31068 182.74 815 796 165.7
A 8 160 8121 44.22 815 796 165.7
A 12 194 7717 41.78 815 796 165.7
B 0 228 47889 296.55 825 807 158.8
B 4 81 27287 166.79 825 807 158.8
B 4 173 16647 99.77 825 807 158.8
C 9 247 94719 507.82 793 798 184.9
C 9 16 26483 138.88 793 798 184.9
C 13 61 6247 29.46 793 798 184.9
D 2 33 1672074 9035.66 746 722 185.0
D 8 195 964392 5209.79 746 722 185.0
D 2 152 322327 1738.66 746 722 185.0

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