ASTROSAT CZTI

Data Quality Report

Orbit 03107

Creation date: 2024-06-27T14:24:43.625907
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_237T03_9000000426_03107cztM0_level2.evt modeM0/AS1G05_237T03_9000000426_03107cztM0_level2_quad_clean.evt
Size (bytes)450,328,32090,250,560
Size429.5 MB 86.1 MB
Events in quadrant A3,016,347571,991
Events in quadrant B3,417,376570,250
Events in quadrant C3,087,505575,245
Events in quadrant D3,664,448551,518

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136883
B0147772
C0139032
D0158952

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6652290.435959%
B6652390.586290%
C6652320.481058%
D66522563.848467%

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 7682 6653 3 3 0.04% 0.05%
B 7682 6653 9 9 0.12% 0.14%
C 7682 6653 9 9 0.12% 0.14%
D 7682 6653 159 159 2.07% 2.39%

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 45646 288.14 757 743 155.8
A 13 14 20640 127.68 757 743 155.8
A 8 15 11091 66.4 757 743 155.8
B 0 219 112755 754.68 774 758 148.4
B 10 244 72710 484.84 774 758 148.4
B 15 204 65994 439.59 774 758 148.4
C 6 80 117849 674.43 740 744 173.6
C 5 250 30056 168.81 740 744 173.6
C 14 223 16449 90.45 740 744 173.6
D 13 120 501728 2821.7 717 700 177.6
D 13 223 130805 732.73 717 700 177.6
D 13 239 129926 727.78 717 700 177.6

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