ASTROSAT CZTI

Data Quality Report

Orbit 40610

Creation date: 2024-06-27T22:18:11.932707
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/AS1A12_054T02_9000005550_40610cztM0_level2.fits modeM0/AS1A12_054T02_9000005550_40610cztM0_level2_quad_clean.evt
Size (bytes)415,391,04090,357,120
Size396.1 MB 86.2 MB
Events in quadrant A3,013,557633,908
Events in quadrant B3,250,957638,303
Events in quadrant C3,218,222605,022
Events in quadrant D5,442,640453,603

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0124833
B0133992
C0132892
D0201742

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0150

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5790170.293610%
B5790591.018998%
C5790991.709845%
D5790144925.025907%

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 7163 5791 5 5 0.07% 0.09%
B 7163 5791 48 48 0.67% 0.83%
C 7163 5791 97 97 1.35% 1.68%
D 7163 5791 439 439 6.13% 7.58%

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 544035 4240.19 626 613 128.2
A 12 189 19212 145.12 626 613 128.2
A 15 237 8598 62.3 626 613 128.2
B 0 190 475710 4000.59 619 601 118.8
B 0 229 125887 1054.95 619 601 118.8
B 5 255 115688 969.07 619 601 118.8
C 14 254 520456 3677.42 606 610 141.4
C 15 214 250821 1770.01 606 610 141.4
C 12 175 34747 241.49 606 610 141.4
D 12 227 957919 6956.84 552 537 137.6
D 2 249 788261 5724.01 552 537 137.6
D 2 250 451821 3279.26 552 537 137.6

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