ASTROSAT CZTI

Data Quality Report

Orbit 47298

Creation date: 2024-06-27T23:33:52.367849
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_025T01_9000006312_47298cztM0_level2.fits modeM0/AS1A13_025T01_9000006312_47298cztM0_level2_quad_clean.evt
Size (bytes)627,379,20099,578,880
Size598.3 MB 95.0 MB
Events in quadrant A8,253,820649,747
Events in quadrant B4,070,944718,248
Events in quadrant C2,955,341690,857
Events in quadrant D7,444,046505,949

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0291281
B0164141
C0133681
D0264131

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A644781412.626028%
B64472604.032884%
C6448560.868486%
D6447157724.460990%

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 7457 6448 339 339 4.55% 5.26%
B 7457 6448 126 126 1.69% 1.95%
C 7458 6449 5 5 0.07% 0.08%
D 7457 6448 1193 1193 16.00% 18.50%

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 3844786 25378.67 721 706 151.5
A 9 191 1239269 8177.01 721 706 151.5
A 15 235 286351 1885.83 721 706 151.5
B 0 200 634606 4326.6 740 717 146.5
B 12 18 246443 1677.2 740 717 146.5
B 10 3 65965 445.35 740 717 146.5
C 12 2 53514 305.7 732 736 172.6
C 14 254 15221 83.9 732 736 172.6
C 1 3 13952 76.55 732 736 172.6
D 12 2 4017534 24812.02 639 618 161.9
D 6 112 433418 2673.35 639 618 161.9
D 11 192 153060 941.62 639 618 161.9

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