ASTROSAT CZTI

Data Quality Report

Orbit 08179

Creation date: 2024-06-27T15:28:59.387341
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/AS1G07_043T01_9000001126_08179cztM0_level2.evt modeM0/AS1G07_043T01_9000001126_08179cztM0_level2_quad_clean.evt
Size (bytes)205,079,04025,234,560
Size195.6 MB 24.1 MB
Events in quadrant A1,456,775135,826
Events in quadrant B1,587,841136,437
Events in quadrant C1,400,547140,299
Events in quadrant D1,557,270134,576

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A061760
B065980
C060920
D065560

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0620
B0620
C0620
D0620

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A303120.065985%
B3031431.418674%
C303100.000000%
D3031220.725833%

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 3031 3031 0 0 0.00% 0.00%
B 3031 3031 29 29 0.96% 0.96%
C 3031 3031 0 0 0.00% 0.00%
D 3031 3031 12 12 0.40% 0.40%

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 45730 594.56 365 358 76.3
A 13 254 4049 48.37 365 358 76.3
A 0 226 3504 41.23 365 358 76.3
B 0 213 125444 1813.27 363 355 69.0
B 15 204 13893 196.24 363 355 69.0
B 0 230 9538 133.12 363 355 69.0
C 13 61 2821 29.35 358 360 83.8
C 14 67 1183 9.82 358 360 83.8
C 12 4 1130 9.18 358 360 83.8
D 5 233 91637 1032.07 358 347 88.5
D 2 136 30871 345.08 358 347 88.5
D 13 105 20601 228.98 358 347 88.5

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