ASTROSAT CZTI

Data Quality Report

Orbit 38041

Creation date: 2024-06-27T21:47:39.849438
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/AS1A11_024T01_9000005358_38041cztM0_level2.fits modeM0/AS1A11_024T01_9000005358_38041cztM0_level2_quad_clean.evt
Size (bytes)357,978,240103,927,680
Size341.4 MB 99.1 MB
Events in quadrant A3,205,176714,642
Events in quadrant B3,483,506730,566
Events in quadrant C2,987,590701,708
Events in quadrant D3,165,300631,832

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280
B0280
C0280
D0290

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0127553
B0135872
C0117792
D0125292

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5266220.417774%
B52661743.304216%
C5266180.341815%
D5266761.443221%

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 7299 5267 6 6 0.08% 0.11%
B 7299 5267 103 103 1.41% 1.96%
C 7299 5267 10 10 0.14% 0.19%
D 7299 5267 65 65 0.89% 1.23%

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 362660 2666.17 675 664 135.8
A 12 227 98849 723.15 675 664 135.8
A 12 16 72976 532.59 675 664 135.8
B 5 184 326031 2579.56 671 658 126.1
B 4 171 304134 2405.96 671 658 126.1
B 5 255 120795 952.45 671 658 126.1
C 15 214 224770 1485.76 660 666 150.8
C 3 233 88617 583.09 660 666 150.8
C 1 23 84921 558.59 660 666 150.8
D 12 227 160679 1015.31 652 633 157.6
D 7 223 126667 799.54 652 633 157.6
D 2 250 86344 543.74 652 633 157.6

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