ASTROSAT CZTI

Data Quality Report

Orbit 35189

Creation date: 2022-04-01T19:42:02.846362
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/AS1T05_016T01_9000005048_35189cztM0_level2.evt modeM0/AS1T05_016T01_9000005048_35189cztM0_level2_quad_clean.evt
Size (bytes)560,482,56065,073,600
Size534.5 MB 62.1 MB
Events in quadrant A1,765,429476,172
Events in quadrant B6,073,231370,715
Events in quadrant C1,874,606473,900
Events in quadrant D6,999,530375,193

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0760
B0760
C0760
D0760

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A077840
B0207020
C078940
D0234560

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A386910.025846%
B3869171844.404239%
C386930.077539%
D3869142536.831223%

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 3869 3869 1 1 0.03% 0.03%
B 3869 3869 1230 1230 31.79% 31.79%
C 3869 3869 4 4 0.10% 0.10%
D 3869 3869 1408 1408 36.39% 36.39%

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 10 83 29731 325.54 441 431 90.0
A 7 16 10506 111.94 441 431 90.0
A 13 6 10424 111.03 441 431 90.0
B 5 236 4387104 63867.13 352 344 68.7
B 5 172 257633 3745.89 352 344 68.7
B 5 200 19154 273.86 352 344 68.7
C 15 214 154025 1547.29 424 427 99.3
C 1 23 24204 239.52 424 427 99.3
C 0 10 18843 185.52 424 427 99.3
D 8 195 4071913 42882.97 380 367 94.9
D 2 120 864402 9100.32 380 367 94.9
D 12 233 161860 1700.9 380 367 94.9

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