ASTROSAT CZTI

Data Quality Report

Orbit 13550

Creation date: 2024-06-27T16:42:28.176282
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/AS1T02_038T01_9000001994_13550cztM0_level2.evt modeM0/AS1T02_038T01_9000001994_13550cztM0_level2_quad_clean.evt
Size (bytes)306,731,52044,686,080
Size292.5 MB 42.6 MB
Events in quadrant A2,064,331282,195
Events in quadrant B2,924,836274,495
Events in quadrant C1,938,703278,184
Events in quadrant D2,112,015259,301

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A083070
B0109280
C078300
D084560

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0720
B0720
C0720
D0720

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3656150.410284%
B365657915.836980%
C365610.027352%
D3656431.176149%

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 3657 3657 5 5 0.14% 0.14%
B 3657 3657 242 242 6.62% 6.62%
C 3657 3657 0 0 0.00% 0.00%
D 3657 3657 37 37 1.01% 1.01%

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 14 238 170808 1670.7 482 474 102.0
A 15 69 13381 126.6 482 474 102.0
A 1 162 11826 111.34 482 474 102.0
B 0 182 1055766 12370.42 434 427 85.3
B 3 64 99500 1161.31 434 427 85.3
B 4 142 32605 377.18 434 427 85.3
C 3 233 134002 1225.47 463 467 109.0
C 13 61 3200 25.08 463 467 109.0
C 8 222 1131 6.09 463 467 109.0
D 8 195 108721 950.95 461 452 113.9
D 2 14 84645 739.48 461 452 113.9
D 5 222 71144 620.9 461 452 113.9

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