ASTROSAT CZTI

Data Quality Report

Orbit 09058

Creation date: 2024-06-27T15:40:42.297699
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/AS1A03_046T01_9000001260_09058cztM0_level2.evt modeM0/AS1A03_046T01_9000001260_09058cztM0_level2_quad_clean.evt
Size (bytes)526,622,400107,461,440
Size502.2 MB 102.5 MB
Events in quadrant A3,629,206701,327
Events in quadrant B4,283,790695,418
Events in quadrant C3,280,159699,855
Events in quadrant D4,284,611674,318

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0230

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0154203
B0172282
C0143962
D0173552

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6943140.201642%
B69432573.701570%
C6943270.388881%
D69432954.248884%

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 9228 6945 0 0 0.00% 0.00%
B 9228 6945 175 175 1.90% 2.52%
C 9228 6945 13 13 0.14% 0.19%
D 9228 6945 260 260 2.82% 3.74%

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 8 5 342364 2051.89 830 812 166.5
A 15 239 70558 419.0 830 812 166.5
A 1 162 12176 68.27 830 812 166.5
B 10 16 862524 5564.82 831 813 154.8
B 4 48 120892 775.46 831 813 154.8
B 6 51 21725 135.05 831 813 154.8
C 14 234 89684 472.93 817 822 187.9
C 13 61 6282 29.06 817 822 187.9
C 14 67 2779 10.42 817 822 187.9
D 1 52 789634 3771.52 794 774 209.2
D 2 14 321246 1532.17 794 774 209.2
D 6 225 52918 249.3 794 774 209.2

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