ASTROSAT CZTI

Data Quality Report

Orbit 11364

Creation date: 2024-06-27T16:11:52.317457
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_062T01_9000001660_11364cztM0_level2.evt modeM0/AS1G08_062T01_9000001660_11364cztM0_level2_quad_clean.evt
Size (bytes)505,722,24085,400,640
Size482.3 MB 81.4 MB
Events in quadrant A3,082,115543,960
Events in quadrant B4,417,802529,383
Events in quadrant C2,981,819545,951
Events in quadrant D4,388,633509,293

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135902
B0175311
C0133851
D0176081

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0190

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6565280.426504%
B65653335.072353%
C6565180.274181%
D65653535.376999%

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 7580 6566 0 0 0.00% 0.00%
B 7580 6566 163 163 2.15% 2.48%
C 7580 6566 0 0 0.00% 0.00%
D 7580 6565 287 287 3.79% 4.37%

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 15 174 43934 272.59 774 758 158.4
A 1 162 16120 96.99 774 758 158.4
A 8 5 12384 73.4 774 758 158.4
B 4 239 933659 6456.52 766 747 144.5
B 3 64 376426 2600.01 766 747 144.5
B 15 204 29525 199.17 766 747 144.5
C 13 61 5598 27.47 762 768 175.9
C 14 67 3961 18.16 762 768 175.9
C 14 234 3446 15.23 762 768 175.9
D 10 253 672602 3795.29 734 713 177.0
D 2 14 338949 1910.59 734 713 177.0
D 2 120 196169 1104.07 734 713 177.0

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