ASTROSAT CZTI

Data Quality Report

Orbit 43418

Creation date: 2024-06-27T22:51:45.564924
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/AS1A12_018T01_9000005874_43418cztM0_level2.fits modeM0/AS1A12_018T01_9000005874_43418cztM0_level2_quad_clean.evt
Size (bytes)306,587,52085,216,320
Size292.4 MB 81.3 MB
Events in quadrant A3,000,281562,230
Events in quadrant B2,425,534588,722
Events in quadrant C2,361,363562,711
Events in quadrant D3,157,677503,583

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0121032
B0109152
C0104712
D0133642

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0250
C0250
D0250

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A51811072.065238%
B5181240.463231%
C518150.096506%
D51811883.628643%

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 7273 5181 70 70 0.96% 1.35%
B 7272 5181 20 20 0.28% 0.39%
C 7273 5182 0 0 0.00% 0.00%
D 7273 5182 179 179 2.46% 3.45%

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 575970 5178.31 544 532 111.1
A 15 237 307477 2762.17 544 532 111.1
A 13 6 11028 94.45 544 532 111.1
B 0 245 105944 1009.12 548 535 104.5
B 0 189 97316 926.52 548 535 104.5
B 0 186 21853 204.09 548 535 104.5
C 15 214 215382 1716.97 536 539 125.1
C 3 233 40998 323.34 536 539 125.1
C 14 254 8524 63.81 536 539 125.1
D 1 52 455373 3550.15 524 508 128.1
D 2 16 236950 1845.39 524 508 128.1
D 1 47 120736 938.36 524 508 128.1

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