ASTROSAT CZTI

Data Quality Report

Orbit 18153

Creation date: 2024-06-27T17:45:55.326879
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/AS1A05_103T01_9000002700_18153cztM0_level2.evt modeM0/AS1A05_103T01_9000002700_18153cztM0_level2_quad_clean.evt
Size (bytes)545,832,00073,607,040
Size520.5 MB 70.2 MB
Events in quadrant A3,411,717446,908
Events in quadrant B3,497,778453,715
Events in quadrant C3,392,278440,237
Events in quadrant D5,781,182427,326

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141312
B0144772
C0139752
D0216912

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66041151.741369%
B66041101.665657%
C66041181.786796%
D66045498.313144%

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 7604 6605 19 19 0.25% 0.29%
B 7604 6605 5 5 0.07% 0.08%
C 7604 6605 0 0 0.00% 0.00%
D 7604 6605 306 306 4.02% 4.63%

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 4 2 87174 495.9 864 847 174.1
A 15 174 7738 39.58 864 847 174.1
A 0 226 7631 38.97 864 847 174.1
B 7 220 106338 640.74 856 837 164.7
B 0 189 21353 124.6 856 837 164.7
B 12 111 18947 109.99 856 837 164.7
C 14 238 129319 661.85 830 836 194.1
C 3 233 14980 72.86 830 836 194.1
C 13 61 5930 26.24 830 836 194.1
D 7 238 1710694 8465.72 825 805 202.0
D 13 187 696922 3446.5 825 805 202.0
D 10 70 64513 315.42 825 805 202.0

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