ASTROSAT CZTI

Data Quality Report

Orbit 44911

Creation date: 2024-06-27T23:07:55.313777
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_017T02_9000006032_44911cztM0_level2.fits modeM0/AS1A13_017T02_9000006032_44911cztM0_level2_quad_clean.evt
Size (bytes)545,711,040112,173,120
Size520.4 MB 107.0 MB
Events in quadrant A5,981,682741,416
Events in quadrant B4,574,938765,303
Events in quadrant C3,313,972765,509
Events in quadrant D5,810,920656,996

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0226922
B0181902
C0144482
D0218832

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66944066.065133%
B66934015.991334%
C66931081.613626%
D66935878.770357%

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 7614 6695 64 64 0.84% 0.96%
B 7613 6694 118 118 1.55% 1.76%
C 7613 6693 9 9 0.12% 0.13%
D 7613 6693 343 343 4.51% 5.12%

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 2601191 15575.62 802 785 167.0
A 13 248 255755 1527.19 802 785 167.0
A 0 243 23276 134.71 802 785 167.0
B 4 171 634504 4005.72 801 777 158.2
B 0 190 110663 694.58 801 777 158.2
B 0 155 108558 681.27 801 777 158.2
C 15 208 65413 339.17 805 813 190.5
C 12 250 30020 153.35 805 813 190.5
C 3 233 20148 101.51 805 813 190.5
D 1 52 703266 3547.16 782 758 198.0
D 5 222 550038 2773.47 782 758 198.0
D 13 249 312041 1571.75 782 758 198.0

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