ASTROSAT CZTI

Data Quality Report

Orbit 13041

Creation date: 2024-06-27T16:35:22.777787
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_216T01_9000001916_13041cztM0_level2.evt modeM0/AS1A04_216T01_9000001916_13041cztM0_level2_quad_clean.evt
Size (bytes)490,677,120104,679,360
Size467.9 MB 99.8 MB
Events in quadrant A3,330,672686,153
Events in quadrant B4,063,625697,665
Events in quadrant C3,081,895702,194
Events in quadrant D3,960,948648,914

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0210

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136293
B0160402
C0129242
D0158242

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6230731.171750%
B62302734.382022%
C6230500.802568%
D62301652.648475%

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 7546 6232 22 22 0.29% 0.35%
B 7546 6232 131 131 1.74% 2.10%
C 7546 6232 0 0 0.00% 0.00%
D 7546 6232 110 110 1.46% 1.77%

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 12 189 84577 539.94 785 772 155.2
A 1 162 53877 342.15 785 772 155.2
A 15 223 52574 333.75 785 772 155.2
B 4 239 450457 3122.13 785 767 144.0
B 3 64 412492 2858.55 785 767 144.0
B 0 85 68197 468.16 785 767 144.0
C 13 61 5752 27.67 789 794 179.2
C 1 5 2146 7.55 789 794 179.2
C 8 222 1915 6.26 789 794 179.2
D 1 52 604721 3357.64 767 747 179.9
D 8 195 435871 2418.96 767 747 179.9
D 2 234 24650 132.88 767 747 179.9

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