ASTROSAT CZTI

Data Quality Report

Orbit 47710

Creation date: 2024-07-24T21:11:42.332077
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/AS1T05_213T01_9000006344_47710cztM0_level2.fits modeM0/AS1T05_213T01_9000006344_47710cztM0_level2_quad_clean.evt
Size (bytes)560,597,760114,796,800
Size534.6 MB 109.5 MB
Events in quadrant A7,399,002740,500
Events in quadrant B3,654,370778,613
Events in quadrant C3,209,230764,757
Events in quadrant D5,936,042694,581

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0273615
B0157902
C0148982
D0227532

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A71403404.761905%
B71411121.568408%
C7141400.560146%
D71411502.100546%

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 7750 7140 9 9 0.12% 0.13%
B 7751 7141 7 7 0.09% 0.10%
C 7751 7142 5 5 0.06% 0.07%
D 7751 7141 108 108 1.39% 1.51%

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 4258471 26070.8 780 761 163.3
A 13 248 64508 390.33 780 761 163.3
A 9 191 56037 338.46 780 761 163.3
B 4 21 281982 1840.61 779 755 152.8
B 0 200 105741 687.13 779 755 152.8
B 0 190 103272 670.97 779 755 152.8
C 12 2 174402 961.17 773 774 180.6
C 14 254 24833 133.19 773 774 180.6
C 13 61 5068 23.77 773 774 180.6
D 2 165 2483715 12897.93 773 749 192.5
D 9 49 104320 538.01 773 749 192.5
D 12 16 70997 364.91 773 749 192.5

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