ASTROSAT CZTI

Data Quality Report

Orbit 48210

Creation date: 2024-08-27T15:27:29.964025
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/AS1C09_004T05_9000006416_48210cztM0_level2.fits modeM0/AS1C09_004T05_9000006416_48210cztM0_level2_quad_clean.evt
Size (bytes)434,937,60082,448,640
Size414.8 MB 78.6 MB
Events in quadrant A6,812,154694,924
Events in quadrant B1,324,07544,476
Events in quadrant C2,739,294676,243
Events in quadrant D4,711,297622,818

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0254791
B076771
C0131681
D0183761

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65121973.025184%
B65126512100.000000%
C6512280.429975%
D65121842.825553%

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 7447 6512 16 16 0.21% 0.25%
B 7446 6511 16 16 0.21% 0.25%
C 7447 6513 3 3 0.04% 0.05%
D 7447 6513 156 156 2.09% 2.40%

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 10 83 4061386 27432.0 708 693 148.0
A 13 254 13480 86.38 708 693 148.0
A 3 137 8107 50.09 708 693 148.0
B 2 177 884818 76814.05 47 46 11.5
B 10 7 183912 15962.86 47 46 11.5
B 4 21 31315 2714.71 47 46 11.5
C 0 207 13119 76.39 690 692 162.7
C 14 254 12129 70.31 690 692 162.7
C 12 2 11574 66.9 690 692 162.7
D 2 165 1253813 7209.64 689 667 173.8
D 2 37 323813 1859.13 689 667 173.8
D 2 249 164376 941.86 689 667 173.8

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