ASTROSAT CZTI

Data Quality Report

Orbit 09479

Creation date: 2024-06-27T15:46:38.371871
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/AS1A03_051T01_9000001346_09479cztM0_level2.evt modeM0/AS1A03_051T01_9000001346_09479cztM0_level2_quad_clean.evt
Size (bytes)225,673,92055,215,360
Size215.2 MB 52.7 MB
Events in quadrant A1,601,773382,464
Events in quadrant B1,459,682377,745
Events in quadrant C1,338,542366,167
Events in quadrant D2,248,891351,651

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A065491
B060791
C057791
D087071

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0540
B0540
C0540
D0540

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2709140.516796%
B2709160.590624%
C270940.147656%
D27101214.464945%

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 2709 2709 2 2 0.07% 0.07%
B 2709 2709 0 0 0.00% 0.00%
C 2709 2709 0 0 0.00% 0.00%
D 2710 2710 109 109 4.02% 4.02%

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 5 186566 2518.05 364 357 73.9
A 1 162 10139 132.28 364 357 73.9
A 0 226 3433 41.6 364 357 73.9
B 4 173 35483 520.25 352 345 67.5
B 0 219 26902 393.2 352 345 67.5
B 0 187 15507 224.49 352 345 67.5
C 14 234 8667 105.41 340 341 79.0
C 13 61 2542 27.87 340 341 79.0
C 9 68 1807 18.56 340 341 79.0
D 8 195 527688 6182.59 344 335 85.3
D 7 71 319189 3738.19 344 335 85.3
D 13 169 34016 394.87 344 335 85.3

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