ASTROSAT CZTI

Data Quality Report

Orbit 47345

Creation date: 2024-06-30T06:55:29.953403
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_093T09_9000006320_47345cztM0_level2.fits modeM0/AS1A13_093T09_9000006320_47345cztM0_level2_quad_clean.evt
Size (bytes)546,808,320102,919,680
Size521.5 MB 98.2 MB
Events in quadrant A7,029,845691,441
Events in quadrant B3,195,708750,391
Events in quadrant C2,925,438718,014
Events in quadrant D6,591,084507,739

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0251592
B0138702
C0132722
D0241142

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0170
C0170
D0170

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64333445.347427%
B6433630.979325%
C6432210.326493%
D6432148723.118781%

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 7633 6434 261 261 3.42% 4.06%
B 7633 6434 0 0 0.00% 0.00%
C 7632 6433 2 2 0.03% 0.03%
D 7632 6433 1325 1325 17.36% 20.60%

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 3667711 24550.02 717 702 149.4
A 15 235 397642 2657.45 717 702 149.4
A 9 191 167938 1119.62 717 702 149.4
B 14 167 95923 660.69 735 712 144.1
B 0 190 82018 564.2 735 712 144.1
B 0 198 39469 268.94 735 712 144.1
C 0 207 66472 386.72 720 725 170.0
C 3 233 40836 235.93 720 725 170.0
C 12 2 11171 61.44 720 725 170.0
D 2 165 3614827 22830.27 630 611 158.3
D 2 249 382984 2415.37 630 611 158.3
D 7 38 60832 380.4 630 611 158.3

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