ASTROSAT CZTI

Data Quality Report

Orbit 43434

Creation date: 2024-06-27T22:51:56.881263
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_43434cztM0_level2.fits modeM0/AS1A12_018T01_9000005874_43434cztM0_level2_quad_clean.evt
Size (bytes)354,352,32086,520,960
Size337.9 MB 82.5 MB
Events in quadrant A3,093,532579,651
Events in quadrant B2,589,014598,442
Events in quadrant C2,569,562567,008
Events in quadrant D4,441,530493,833

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0124812
B0115032
C0112682
D0171572

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0320
B0330
C0330
D0330

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01120
B01120
C01120
D01120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5435631.159154%
B5435150.275989%
C543530.055198%
D54354558.371665%

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 7138 5436 45 45 0.63% 0.83%
B 7138 5436 7 7 0.10% 0.13%
C 7138 5436 1 1 0.01% 0.02%
D 7138 5436 463 463 6.49% 8.52%

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 624944 5348.7 570 560 116.7
A 15 237 218432 1866.37 570 560 116.7
A 2 79 17578 145.78 570 560 116.7
B 0 186 107863 975.18 572 556 110.0
B 0 199 94422 853.03 572 556 110.0
B 0 189 57249 515.21 572 556 110.0
C 15 214 229232 1753.44 557 560 130.4
C 3 233 124878 953.26 557 560 130.4
C 0 207 38559 291.37 557 560 130.4
D 1 52 1952211 14934.44 536 519 130.7
D 13 249 173634 1324.68 536 519 130.7
D 2 249 55852 423.41 536 519 130.7

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