ASTROSAT CZTI

Data Quality Report

Orbit 45600

Creation date: 2024-06-27T23:14:04.684053
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/AS1A13_082T02_9000006112_45600cztM0_level2.fits modeM0/AS1A13_082T02_9000006112_45600cztM0_level2_quad_clean.evt
Size (bytes)262,699,20063,665,280
Size250.5 MB 60.7 MB
Events in quadrant A3,227,823415,662
Events in quadrant B1,870,954442,667
Events in quadrant C1,940,697417,114
Events in quadrant D2,379,994376,744

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A012514132
B0824186
C0872380
D09837132

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A051
B040
C040
D040

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0780
B0791
C0780
D0791

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3901932.384004%
B3908380.972364%
C3903561.434794%
D3907852.175582%

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 7524 3910 1 1 0.01% 0.03%
B 7522 3911 13 13 0.17% 0.33%
C 7525 3908 42 42 0.56% 1.07%
D 7526 3912 71 71 0.94% 1.81%

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 1534959 16754.28 437 428 91.6
A 3 137 5148 51.53 437 428 91.6
A 0 243 3909 38.01 437 428 91.6
B 15 201 102635 1166.98 439 426 87.6
B 0 183 13742 152.04 439 426 87.6
B 12 111 11104 121.92 439 426 87.6
C 14 254 288288 2893.31 420 423 99.5
C 2 14 11298 109.3 420 423 99.5
C 13 61 2882 24.72 420 423 99.5
D 1 52 338046 3213.2 419 405 105.1
D 13 249 199175 1891.62 419 405 105.1
D 11 241 142352 1350.85 419 405 105.1

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