ASTROSAT CZTI

Data Quality Report

Orbit 47141

Creation date: 2024-06-27T23:32:11.147324
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/AS1C09_003T01_9000006298_47141cztM0_level2.fits modeM0/AS1C09_003T01_9000006298_47141cztM0_level2_quad_clean.evt
Size (bytes)276,287,04062,242,560
Size263.5 MB 59.4 MB
Events in quadrant A3,764,949412,875
Events in quadrant B1,848,068439,237
Events in quadrant C2,487,891386,932
Events in quadrant D1,837,940384,280

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0149741253
B08527626
C010615534
D08682557

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0804
B0791
C0824
D0822

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A36021143.164908%
B3694170.460206%
C37232536.795595%
D3738270.722311%

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 5273 3825 36 36 0.68% 0.94%
B 5262 3843 6 6 0.11% 0.16%
C 5240 3863 248 248 4.73% 6.42%
D 5262 3882 20 20 0.38% 0.52%

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 2110890 24331.81 414 405 86.7
A 15 235 24899 282.39 414 405 86.7
A 0 243 12746 142.28 414 405 86.7
B 5 255 54681 643.18 424 410 84.4
B 0 183 32756 383.34 424 410 84.4
B 0 200 26587 310.23 424 410 84.4
C 15 208 790855 8441.97 400 402 93.6
C 14 254 98275 1045.28 400 402 93.6
C 12 250 14935 155.21 400 402 93.6
D 1 47 95576 910.71 417 402 104.5
D 13 171 51738 491.23 417 402 104.5
D 2 234 19063 178.57 417 402 104.5

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