ASTROSAT CZTI

Data Quality Report

Orbit 47967

Creation date: 2024-08-11T04:35:07.354887
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/AS1A13_062T02_9000006384_47967cztM0_level2.fits modeM0/AS1A13_062T02_9000006384_47967cztM0_level2_quad_clean.evt
Size (bytes)519,641,280105,261,120
Size495.6 MB 100.4 MB
Events in quadrant A6,690,441703,395
Events in quadrant B3,019,891765,916
Events in quadrant C3,054,020725,364
Events in quadrant D5,988,164558,398

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0239722
B0130963
C0133572
D0219752

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62234086.556323%
B6223661.060582%
C6223580.932026%
D6223114318.367347%

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 8593 6223 141 141 1.64% 2.27%
B 8593 6223 3 3 0.03% 0.05%
C 8593 6224 23 23 0.27% 0.37%
D 8593 6224 1095 1095 12.74% 17.59%

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 10 83 3879923 25887.62 722 709 149.8
A 7 3 20858 134.46 722 709 149.8
A 3 137 8097 49.3 722 709 149.8
B 0 198 25794 174.21 738 718 143.9
B 0 156 25513 172.26 738 718 143.9
B 12 111 17872 119.17 738 718 143.9
C 12 2 180894 1057.6 726 732 170.3
C 12 250 25427 144.97 726 732 170.3
C 14 254 14756 82.32 726 732 170.3
D 2 249 3223588 19174.1 669 649 168.1
D 11 224 77605 457.83 669 649 168.1
D 5 32 50741 298.01 669 649 168.1

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