ASTROSAT CZTI

Data Quality Report

Orbit 10928

Creation date: 2024-06-27T16:05:55.076613
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/AS1G08_068T01_9000001580_10928cztM0_level2.evt modeM0/AS1G08_068T01_9000001580_10928cztM0_level2_quad_clean.evt
Size (bytes)488,753,28097,842,240
Size466.1 MB 93.3 MB
Events in quadrant A3,999,378645,188
Events in quadrant B3,656,989668,787
Events in quadrant C2,722,850658,176
Events in quadrant D4,039,752596,086

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01576528
B01441714
C01172810
D01565942

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01162
B01160
C01160
D01160

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A56394157.359461%
B56422734.838710%
C5644631.116230%
D56384057.183398%

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 6917 5647 253 253 3.66% 4.48%
B 6918 5649 108 108 1.56% 1.91%
C 6918 5649 1 1 0.01% 0.02%
D 6918 5647 305 305 4.41% 5.40%

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 8 5 688938 4831.4 708 696 142.5
A 15 223 294955 2065.67 708 696 142.5
A 15 239 181557 1269.63 708 696 142.5
B 4 239 707024 5208.4 715 701 135.6
B 15 204 74718 545.8 715 701 135.6
B 11 51 32572 235.02 715 701 135.6
C 14 234 5862 32.31 694 699 159.8
C 13 61 5227 28.33 694 699 159.8
C 12 4 4930 26.47 694 699 159.8
D 13 152 1009774 6177.27 677 659 163.4
D 8 195 109914 668.8 677 659 163.4
D 13 104 76708 465.53 677 659 163.4

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