ASTROSAT CZTI

Data Quality Report

Orbit 05098

Creation date: 2024-06-27T14:51:17.679943
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_105T01_9000000644_05098cztM0_level2.evt modeM0/AS1G05_105T01_9000000644_05098cztM0_level2_quad_clean.evt
Size (bytes)600,431,04082,301,760
Size572.6 MB 78.5 MB
Events in quadrant A2,951,040559,784
Events in quadrant B3,037,124562,445
Events in quadrant C2,805,026530,464
Events in quadrant D8,949,096384,506

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134342
B0135151
C0132501
D0310521

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65041071.645141%
B65041051.614391%
C6504771.183887%
D6504231935.654982%

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 6959 6505 10 10 0.14% 0.15%
B 6959 6505 7 7 0.10% 0.11%
C 6959 6505 0 0 0.00% 0.00%
D 6959 6505 1890 1890 27.16% 29.05%

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 50 66428 432.81 740 722 151.8
A 13 251 35784 230.95 740 722 151.8
A 12 194 7501 44.65 740 722 151.8
B 4 80 52668 365.19 745 726 142.2
B 15 54 24531 167.37 745 726 142.2
B 4 48 20673 140.24 745 726 142.2
C 12 4 7839 43.15 713 715 165.1
C 8 128 6496 35.01 713 715 165.1
C 13 61 5888 31.33 713 715 165.1
D 12 22 4875390 33724.12 584 563 144.6
D 13 235 1115012 7709.77 584 563 144.6
D 13 239 323951 2237.2 584 563 144.6

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