ASTROSAT CZTI

Data Quality Report

Orbit 44405

Creation date: 2024-06-27T23:03:12.884991
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_008T08_9000005998_44405cztM0_level2.fits modeM0/AS1A13_008T08_9000005998_44405cztM0_level2_quad_clean.evt
Size (bytes)556,908,480108,774,720
Size531.1 MB 103.7 MB
Events in quadrant A4,998,518743,504
Events in quadrant B4,125,032748,898
Events in quadrant C3,424,783728,845
Events in quadrant D7,530,420590,715

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0205662
B0169482
C0151142
D0271182

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A69111632.358559%
B69122804.050926%
C6912741.070602%
D6912112416.261574%

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 7126 6914 9 9 0.13% 0.13%
B 7127 6915 117 117 1.64% 1.69%
C 7127 6915 17 17 0.24% 0.25%
D 7127 6915 1060 1060 14.87% 15.33%

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 1782528 10703.91 789 773 166.5
A 13 248 82013 488.05 789 773 166.5
A 0 243 46832 276.7 789 773 166.5
B 5 235 419637 2648.82 788 764 158.1
B 5 172 271410 1711.48 788 764 158.1
B 0 229 79133 495.58 788 764 158.1
C 14 254 263049 1430.25 770 776 183.4
C 3 233 120314 651.87 770 776 183.4
C 1 3 15784 81.84 770 776 183.4
D 4 221 1406122 7531.33 727 701 186.6
D 5 222 945817 5064.66 727 701 186.6
D 2 249 592936 3173.65 727 701 186.6

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