ASTROSAT CZTI

Data Quality Report

Orbit 23364

Creation date: 2024-06-27T18:53:21.610735
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/AS1A07_138T06_9000003456_23364cztM0_level2.evt modeM0/AS1A07_138T06_9000003456_23364cztM0_level2_quad_clean.evt
Size (bytes)542,174,40072,253,440
Size517.1 MB 68.9 MB
Events in quadrant A3,083,354445,869
Events in quadrant B3,246,298450,681
Events in quadrant C6,379,346419,415
Events in quadrant D3,288,384436,521

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0128951
B0133901
C0233711
D0136801

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62281111.782274%
B62291191.910419%
C62296009.632365%
D62291051.685664%

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 7263 6228 0 0 0.00% 0.00%
B 7264 6229 2 2 0.03% 0.03%
C 7264 6229 230 230 3.17% 3.69%
D 7264 6229 6 6 0.08% 0.10%

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 13 254 10282 59.9 799 783 158.6
A 0 226 6938 38.81 799 783 158.6
A 3 137 6723 37.46 799 783 158.6
B 0 190 85276 568.92 789 769 148.5
B 0 189 18015 116.1 789 769 148.5
B 12 111 17348 111.61 789 769 148.5
C 0 239 3283567 18844.46 755 759 174.2
C 14 238 120835 689.28 755 759 174.2
C 7 247 21627 119.79 755 759 174.2
D 1 52 182201 954.55 785 762 190.1
D 2 152 52476 272.07 785 762 190.1
D 12 233 31486 161.64 785 762 190.1

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