ASTROSAT CZTI

Data Quality Report

Orbit 48448

Creation date: 2024-09-13T09:24:43.922505
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_029T01_9000006426_48448cztM0_level2.fits modeM0/AS1A13_029T01_9000006426_48448cztM0_level2_quad_clean.evt
Size (bytes)417,150,72096,200,640
Size397.8 MB 91.7 MB
Events in quadrant A6,344,195620,996
Events in quadrant B2,893,535663,664
Events in quadrant C2,680,251640,110
Events in quadrant D3,067,610577,908

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0234931
B0125531
C0121842
D0130051

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A58713736.353262%
B58721081.839237%
C5871480.817578%
D58711051.788452%

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 6876 5872 129 129 1.88% 2.20%
B 6877 5873 18 18 0.26% 0.31%
C 6876 5872 9 9 0.13% 0.15%
D 6876 5872 32 32 0.47% 0.54%

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 3366497 24357.53 661 646 138.2
A 13 248 396567 2865.15 661 646 138.2
A 0 31 18453 128.86 661 646 138.2
B 12 16 164978 1236.4 666 646 132.9
B 5 255 39764 294.32 666 646 132.9
B 0 197 27338 200.83 666 646 132.9
C 12 250 55879 352.25 662 666 156.7
C 12 2 15067 91.88 662 666 156.7
C 14 67 9253 54.78 662 666 156.7
D 2 165 154616 925.8 663 643 166.3
D 11 224 85220 508.54 663 643 166.3
D 12 233 70502 420.05 663 643 166.3

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