ASTROSAT CZTI

Data Quality Report

Orbit 10054

Creation date: 2024-06-27T15:54:17.403587
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_052T01_9000001436_10054cztM0_level2.evt modeM0/AS1A03_052T01_9000001436_10054cztM0_level2_quad_clean.evt
Size (bytes)297,515,52045,872,640
Size283.7 MB 43.7 MB
Events in quadrant A1,832,650283,166
Events in quadrant B2,092,526287,885
Events in quadrant C1,644,975283,655
Events in quadrant D3,177,456262,263

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0808
B0800
C0802
D0802

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A08373365
B09197416
C08023287
D012850675

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3849250.649519%
B3845461.196359%
C386300.000000%
D38181112.907281%

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 4007 3979 18 18 0.45% 0.45%
B 4007 3969 24 24 0.60% 0.60%
C 4007 3982 0 0 0.00% 0.00%
D 4007 3973 104 104 2.60% 2.62%

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 101416 1101.15 435 426 91.7
A 15 174 56081 606.84 435 426 91.7
A 0 226 3918 38.08 435 426 91.7
B 4 81 288989 3437.53 433 423 83.9
B 10 247 63311 749.15 433 423 83.9
B 0 246 37887 446.29 433 423 83.9
C 8 222 3457 30.93 419 421 98.2
C 13 61 3198 28.29 419 421 98.2
C 14 67 2151 17.62 419 421 98.2
D 2 16 1061318 10093.73 410 398 105.1
D 1 20 161364 1531.45 410 398 105.1
D 8 195 160742 1525.53 410 398 105.1

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