ASTROSAT CZTI

Data Quality Report

Orbit 46821

Creation date: 2024-06-27T23:28:05.271752
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/AS1C07_001T10_9000006272_46821cztM0_level2.fits modeM0/AS1C07_001T10_9000006272_46821cztM0_level2_quad_clean.evt
Size (bytes)504,345,600108,967,680
Size481.0 MB 103.9 MB
Events in quadrant A6,611,500724,768
Events in quadrant B3,753,357748,171
Events in quadrant C3,100,486736,037
Events in quadrant D4,708,657644,706

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240734
B0155951
C0136191
D0183841

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63882884.508453%
B63891872.926906%
C6389861.346064%
D63894096.401628%

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 7553 6389 58 58 0.77% 0.91%
B 7554 6390 82 82 1.09% 1.28%
C 7554 6390 16 16 0.21% 0.25%
D 7554 6390 280 280 3.71% 4.38%

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 3611344 24221.81 724 708 149.1
A 14 248 72662 482.7 724 708 149.1
A 15 235 33135 217.54 724 708 149.1
B 3 112 309838 2222.05 722 702 139.1
B 5 32 205337 1470.91 722 702 139.1
B 4 171 139070 994.58 722 702 139.1
C 14 254 148443 873.8 726 729 169.0
C 3 233 98324 577.32 726 729 169.0
C 14 67 8544 46.23 726 729 169.0
D 13 249 741755 4177.91 709 689 177.4
D 1 52 622529 3505.75 709 689 177.4
D 12 233 253715 1426.49 709 689 177.4

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