ASTROSAT CZTI

Data Quality Report

Orbit 46814

Creation date: 2024-06-27T23:28:00.580764
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/AS1C07_001T10_9000006272_46814cztM0_level2.fits modeM0/AS1C07_001T10_9000006272_46814cztM0_level2_quad_clean.evt
Size (bytes)489,119,040116,138,880
Size466.5 MB 110.8 MB
Events in quadrant A6,594,452757,693
Events in quadrant B3,908,056777,847
Events in quadrant C3,180,448771,783
Events in quadrant D3,851,780696,985

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0245080
B0166610
C0150610
D0168340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A73541141.550177%
B73551391.889871%
C7355100.135962%
D73551041.414004%

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 7354 7354 15 15 0.20% 0.20%
B 7355 7355 42 42 0.57% 0.57%
C 7355 7355 9 9 0.12% 0.12%
D 7355 7355 79 79 1.07% 1.07%

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 3447095 21175.28 780 763 162.8
A 9 191 48205 291.49 780 763 162.8
A 10 255 42398 255.81 780 763 162.8
B 5 255 391795 2536.46 782 758 154.2
B 4 171 240217 1553.25 782 758 154.2
B 3 112 54391 347.89 782 758 154.2
C 14 254 78186 422.07 778 782 183.4
C 3 233 56590 304.31 778 782 183.4
C 13 61 5232 24.26 778 782 183.4
D 13 249 273180 1426.67 767 741 191.0
D 1 52 193730 1010.62 767 741 191.0
D 2 236 186989 975.32 767 741 191.0

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