ASTROSAT CZTI

Data Quality Report

Orbit 46673

Creation date: 2024-06-27T23:26:19.381021
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_092T18_9000006248_46673cztM0_level2.fits modeM0/AS1A13_092T18_9000006248_46673cztM0_level2_quad_clean.evt
Size (bytes)509,071,68099,590,400
Size485.5 MB 95.0 MB
Events in quadrant A6,707,151645,171
Events in quadrant B3,954,930678,593
Events in quadrant C2,806,918667,460
Events in quadrant D4,878,382577,050

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240681
B0161556
C0131791
D0190111

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64073605.618854%
B64061943.028411%
C6406220.343428%
D64064847.555417%

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 7392 6408 218 218 2.95% 3.40%
B 7391 6407 78 78 1.06% 1.22%
C 7391 6407 0 0 0.00% 0.00%
D 7391 6407 365 365 4.94% 5.70%

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 3521634 25269.05 672 656 139.3
A 9 191 438946 3145.48 672 656 139.3
A 13 248 65617 466.21 672 656 139.3
B 4 171 559767 4175.93 681 660 133.9
B 0 189 284150 2117.36 681 660 133.9
B 5 255 134177 997.23 681 660 133.9
C 3 233 57219 351.18 680 682 161.0
C 12 2 31505 191.46 680 682 161.0
C 1 3 17112 102.05 680 682 161.0
D 8 129 675310 4144.56 651 631 162.8
D 1 52 434016 2662.29 651 631 162.8
D 5 171 309456 1897.12 651 631 162.8

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