ASTROSAT CZTI

Data Quality Report

Orbit 05140

Creation date: 2024-06-27T14:51:51.956512
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/AS1G05_102T01_9000000650_05140cztM0_level2.evt modeM0/AS1G05_102T01_9000000650_05140cztM0_level2_quad_clean.evt
Size (bytes)482,564,16077,941,440
Size460.2 MB 74.3 MB
Events in quadrant A3,124,525480,013
Events in quadrant B3,370,035479,565
Events in quadrant C3,081,568483,923
Events in quadrant D4,589,286455,694

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136153
B0141052
C0136242
D0180332

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66091311.982146%
B66091432.163716%
C66091011.528219%
D66095157.792404%

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 7619 6609 0 0 0.00% 0.00%
B 7619 6610 6 6 0.08% 0.09%
C 7619 6610 0 0 0.00% 0.00%
D 7619 6610 332 332 4.36% 5.02%

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 0 50 11523 65.11 809 792 164.8
A 12 194 8210 45.01 809 792 164.8
A 0 226 7944 43.39 809 792 164.8
B 4 80 62433 394.55 812 793 156.2
B 8 3 44764 281.46 812 793 156.2
B 10 16 40975 257.2 812 793 156.2
C 1 16 18012 94.49 785 790 182.3
C 13 61 6300 30.23 785 790 182.3
C 7 159 2031 6.81 785 790 182.3
D 12 233 1113597 5889.77 766 742 188.9
D 2 33 392469 2073.21 766 742 188.9
D 1 239 68404 358.1 766 742 188.9

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