ASTROSAT CZTI

Data Quality Report

Orbit 04500

Creation date: 2024-06-27T14:42:59.335386
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/AS1G05_083T03_9000000566_04500cztM0_level2.evt modeM0/AS1G05_083T03_9000000566_04500cztM0_level2_quad_clean.evt
Size (bytes)482,319,36057,110,400
Size460.0 MB 54.5 MB
Events in quadrant A3,701,422324,368
Events in quadrant B3,958,237323,695
Events in quadrant C3,282,106320,632
Events in quadrant D3,227,426310,279

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150812
B0158921
C0139291
D0141291

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64521382.138872%
B64521932.991321%
C6452701.084935%
D6452921.425914%

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 7722 6453 64 64 0.83% 0.99%
B 7722 6453 98 98 1.27% 1.52%
C 7722 6453 27 27 0.35% 0.42%
D 7722 6453 39 39 0.51% 0.60%

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 0 31 486118 3042.32 794 779 159.5
A 0 13 88090 547.3 794 779 159.5
A 7 16 28824 175.8 794 779 159.5
B 10 16 671674 4425.59 802 787 151.6
B 15 204 69945 456.21 802 787 151.6
B 4 48 46760 303.27 802 787 151.6
C 9 247 245171 1377.96 772 776 177.4
C 14 48 17110 92.09 772 776 177.4
C 13 61 6471 32.11 772 776 177.4
D 13 235 182247 990.08 762 739 183.3
D 2 136 96027 519.77 762 739 183.3
D 2 14 25572 135.46 762 739 183.3

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