ASTROSAT CZTI

Data Quality Report

Orbit 05487

Creation date: 2024-06-27T14:55:54.490801
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_139T01_9000000700_05487cztM0_level2.evt modeM0/AS1G06_139T01_9000000700_05487cztM0_level2_quad_clean.evt
Size (bytes)499,409,28077,569,920
Size476.3 MB 74.0 MB
Events in quadrant A3,108,625482,167
Events in quadrant B3,572,795482,876
Events in quadrant C4,635,693451,461
Events in quadrant D3,356,444469,144

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139053
B0150612
C0184292
D0146972

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6644630.948224%
B66441021.535220%
C66445908.880193%
D6644671.008429%

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 7774 6645 0 0 0.00% 0.00%
B 7774 6645 24 24 0.31% 0.36%
C 7774 6645 447 447 5.75% 6.73%
D 7774 6645 27 27 0.35% 0.41%

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 18727 108.92 800 783 164.7
A 12 194 8127 44.58 800 783 164.7
A 0 226 8030 43.99 800 783 164.7
B 15 204 234331 1512.63 805 786 154.4
B 7 252 92915 596.7 805 786 154.4
B 11 51 50790 323.87 805 786 154.4
C 9 247 1725573 10047.9 738 744 171.7
C 1 16 23016 129.74 738 744 171.7
C 10 21 6410 33.01 738 744 171.7
D 2 152 124781 649.52 771 745 191.0
D 9 85 92430 480.11 771 745 191.0
D 11 192 47493 244.8 771 745 191.0

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