ASTROSAT CZTI

Data Quality Report

Orbit 47106

Creation date: 2024-06-27T23:31:47.810927
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_47106cztM0_level2.fits modeM0/AS1C09_003T01_9000006298_47106cztM0_level2_quad_clean.evt
Size (bytes)965,344,320212,247,360
Size920.6 MB 202.4 MB
Events in quadrant A13,724,2101,392,812
Events in quadrant B6,786,6401,442,658
Events in quadrant C6,093,2091,382,739
Events in quadrant D8,086,2941,274,895

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0497973
B0296482
C0283492
D0335972

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02760
B02760
C02760
D02760

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A134947055.224544%
B134943122.312139%
C134951561.155984%
D134954012.971471%

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 14569 13496 66 66 0.45% 0.49%
B 14569 13496 51 51 0.35% 0.38%
C 14570 13497 29 29 0.20% 0.21%
D 14570 13497 219 219 1.50% 1.62%

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 10 83 7507016 24264.84 1496 1465 309.3
A 7 3 112412 358.68 1496 1465 309.3
A 15 235 107300 342.16 1496 1465 309.3
B 5 32 174833 591.07 1503 1456 293.3
B 0 200 143089 482.85 1503 1456 293.3
B 0 190 136333 459.82 1503 1456 293.3
C 14 254 208693 599.54 1475 1481 345.6
C 12 2 84458 240.08 1475 1481 345.6
C 11 16 16714 44.07 1475 1481 345.6
D 2 249 925751 2536.99 1473 1424 364.3
D 1 47 287192 784.35 1473 1424 364.3
D 12 233 236488 645.18 1473 1424 364.3

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