ASTROSAT CZTI

Data Quality Report

Orbit 03447

Creation date: 2024-06-27T14:29:08.775687
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_167T01_9000000456_03447cztM0_level2.evt modeM0/AS1G05_167T01_9000000456_03447cztM0_level2_quad_clean.evt
Size (bytes)452,764,80094,475,520
Size431.8 MB 90.1 MB
Events in quadrant A3,209,135600,900
Events in quadrant B3,809,151605,085
Events in quadrant C3,201,589604,937
Events in quadrant D3,033,301579,614

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142193
B0157812
C0141542
D0140552

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6748550.815056%
B6748941.393005%
C6748400.592768%
D6748280.414938%

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 7608 6749 15 15 0.20% 0.22%
B 7608 6749 1 1 0.01% 0.01%
C 7608 6749 7 7 0.09% 0.10%
D 7608 6749 11 11 0.14% 0.16%

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 120830 728.28 800 785 164.8
A 0 226 8322 45.72 800 785 164.8
A 12 194 8305 45.62 800 785 164.8
B 15 204 559071 3535.68 816 799 157.9
B 14 167 38265 237.28 816 799 157.9
B 0 229 23738 145.28 816 799 157.9
C 1 192 106601 571.58 789 797 185.1
C 13 61 6649 31.61 789 797 185.1
C 12 4 6578 31.23 789 797 185.1
D 13 223 36034 185.98 778 758 189.7
D 5 233 20350 103.29 778 758 189.7
D 7 223 12791 63.44 778 758 189.7

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