ASTROSAT CZTI

Data Quality Report

Orbit 05758

Creation date: 2024-06-27T14:58:46.202968
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/AS1A02_149T01_9000000740_05758cztM0_level2.evt modeM0/AS1A02_149T01_9000000740_05758cztM0_level2_quad_clean.evt
Size (bytes)429,595,20064,491,840
Size409.7 MB 61.5 MB
Events in quadrant A3,141,414377,801
Events in quadrant B3,296,960384,181
Events in quadrant C2,988,161378,930
Events in quadrant D3,141,400357,951

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0210

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135873
B0140322
C0132822
D0136602

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6498550.846414%
B6498560.861804%
C6498310.477070%
D6498330.507849%

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 7668 6499 15 15 0.20% 0.23%
B 7668 6499 5 5 0.07% 0.08%
C 7668 6499 1 1 0.01% 0.02%
D 7668 6499 8 8 0.10% 0.12%

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 116269 720.08 785 769 160.4
A 0 226 7546 42.25 785 769 160.4
A 12 194 7490 41.9 785 769 160.4
B 15 204 76431 497.85 798 780 152.0
B 4 81 40978 264.54 798 780 152.0
B 15 85 35019 225.32 798 780 152.0
C 8 79 7073 35.59 764 770 177.1
C 13 61 6326 31.37 764 770 177.1
C 3 202 1914 6.46 764 770 177.1
D 8 195 115281 619.68 755 733 184.8
D 12 233 36075 191.19 755 733 184.8
D 2 209 25987 136.62 755 733 184.8

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