ASTROSAT CZTI

Data Quality Report

Orbit 06678

Creation date: 2024-06-27T15:10:13.042593
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/AS1G06_102T01_9000000912_06678cztM0_level2.evt modeM0/AS1G06_102T01_9000000912_06678cztM0_level2_quad_clean.evt
Size (bytes)590,901,12090,855,360
Size563.5 MB 86.6 MB
Events in quadrant A5,348,997562,771
Events in quadrant B3,779,231580,856
Events in quadrant C3,099,180573,921
Events in quadrant D5,182,967535,261

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0208821
B0161360
C0145500
D0206990

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A71583524.917575%
B71582563.576418%
C7158901.257334%
D715880911.302040%

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 7413 7159 39 39 0.53% 0.54%
B 7413 7159 75 75 1.01% 1.05%
C 7413 7159 0 0 0.00% 0.00%
D 7413 7159 542 542 7.31% 7.57%

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 13 251 2074050 12517.9 807 787 165.6
A 8 15 107414 643.79 807 787 165.6
A 4 2 48064 285.44 807 787 165.6
B 0 228 372145 2359.9 816 796 157.4
B 4 48 79614 500.88 816 796 157.4
B 0 219 57536 360.58 816 796 157.4
C 8 128 11174 56.57 788 791 183.6
C 8 112 6556 31.41 788 791 183.6
C 13 61 6396 30.54 788 791 183.6
D 2 33 2158403 11611.05 753 729 185.8
D 8 195 46474 246.16 753 729 185.8
D 14 34 28894 151.56 753 729 185.8

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