ASTROSAT CZTI

Data Quality Report

Orbit 06131

Creation date: 2024-06-27T15:03:09.558730
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_019T01_9000000796_06131cztM0_level2.evt modeM0/AS1G06_019T01_9000000796_06131cztM0_level2_quad_clean.evt
Size (bytes)1,976,048,640330,160,320
Size1.8 GB 314.9 MB
Events in quadrant A13,634,5352,020,056
Events in quadrant B18,360,5971,978,410
Events in quadrant C12,950,2312,040,024
Events in quadrant D12,948,0601,977,346

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0231
D0230

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0633343081
B0789855147
C0620852899
D0632253040

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A061325
B061428
C061424
D061434

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A288913091.069537%
B2863920257.070778%
C288862700.934709%
D289092630.909751%

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 32585 29743 10 10 0.03% 0.03%
B 32585 29585 981 981 3.01% 3.32%
C 32585 29757 1 1 0.00% 0.00%
D 32585 29733 40 40 0.12% 0.13%

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 592615 853.41 3355 3281 690.6
A 4 2 104121 146.02 3355 3281 690.6
A 0 226 32014 41.61 3355 3281 690.6
B 3 64 4930467 7731.81 3295 3209 637.3
B 15 85 284135 440.83 3295 3209 637.3
B 15 204 153644 236.06 3295 3209 637.3
C 1 16 111841 141.81 3277 3289 765.5
C 13 61 26058 29.75 3277 3289 765.5
C 8 128 17609 18.71 3277 3289 765.5
D 13 169 273969 336.12 3277 3170 805.7
D 8 195 102191 122.91 3277 3170 805.7
D 2 206 60064 70.62 3277 3170 805.7

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