ASTROSAT CZTI

Data Quality Report

Orbit 47770

Creation date: 2024-07-28T22:27:09.098605
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_004T02_9000006348_47770cztM0_level2.fits modeM0/AS1C09_004T02_9000006348_47770cztM0_level2_quad_clean.evt
Size (bytes)594,524,160117,290,880
Size567.0 MB 111.9 MB
Events in quadrant A7,871,153788,075
Events in quadrant B5,098,564787,488
Events in quadrant C4,443,499744,891
Events in quadrant D4,019,462713,942

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0282752
B0204170
C0186220
D0173590

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A74242002.693966%
B74252393.218855%
C74252833.811448%
D7425861.158249%

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 7424 7424 36 36 0.48% 0.48%
B 7425 7425 127 127 1.71% 1.71%
C 7425 7425 209 209 2.81% 2.81%
D 7425 7425 57 57 0.77% 0.77%

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 4485021 26100.02 817 799 171.8
A 13 248 108269 625.52 817 799 171.8
A 13 6 91585 528.41 817 799 171.8
B 0 186 1066056 6670.98 809 783 159.7
B 5 172 140037 872.04 809 783 159.7
B 0 200 136261 848.39 809 783 159.7
C 12 2 1190519 6381.89 788 789 186.4
C 14 254 143186 763.84 788 789 186.4
C 15 126 13049 65.76 788 789 186.4
D 2 165 179348 887.55 809 784 201.2
D 7 67 152828 755.73 809 784 201.2
D 14 49 113706 561.28 809 784 201.2

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