ASTROSAT CZTI

Data Quality Report

Orbit 47198

Creation date: 2024-06-27T23:32:45.002686
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_019T01_9000006302_47198cztM0_level2.fits modeM0/AS1A13_019T01_9000006302_47198cztM0_level2_quad_clean.evt
Size (bytes)468,342,720113,405,760
Size446.6 MB 108.2 MB
Events in quadrant A6,693,977751,879
Events in quadrant B3,824,032784,159
Events in quadrant C3,008,765749,463
Events in quadrant D3,296,993687,828

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0243282
B0157022
C0135012
D0144452

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66061932.921586%
B66061782.694520%
C6607150.227032%
D6607380.575148%

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 7821 6606 72 72 0.92% 1.09%
B 7821 6606 95 95 1.21% 1.44%
C 7822 6608 4 4 0.05% 0.06%
D 7822 6608 45 45 0.58% 0.68%

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 3671842 23075.86 768 752 159.1
A 7 3 37210 229.17 768 752 159.1
A 13 254 12122 71.47 768 752 159.1
B 8 234 319153 2097.98 773 752 151.8
B 0 190 153452 1006.16 773 752 151.8
B 0 200 84256 550.22 773 752 151.8
C 6 247 14905 78.74 759 765 179.6
C 15 208 9395 48.06 759 765 179.6
C 8 111 7819 39.28 759 765 179.6
D 1 232 111639 588.38 750 728 188.5
D 5 171 110649 583.12 750 728 188.5
D 7 55 44287 231.08 750 728 188.5

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