ASTROSAT CZTI

Data Quality Report

Orbit 04467

Creation date: 2024-06-27T14:42:25.204555
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_253T01_9000000560_04467cztM0_level2.evt modeM0/AS1G05_253T01_9000000560_04467cztM0_level2_quad_clean.evt
Size (bytes)435,873,60076,337,280
Size415.7 MB 72.8 MB
Events in quadrant A3,256,370466,784
Events in quadrant B3,008,758473,706
Events in quadrant C3,241,656468,421
Events in quadrant D3,256,671454,532

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01362
B01366
C01366
D01360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0150

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A014678680
B013830444
C014748596
D015001547

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6386450.704666%
B6440310.481366%
C6401280.437432%
D6414871.356408%

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 7580 6631 24 24 0.32% 0.36%
B 7580 6637 3 3 0.04% 0.05%
C 7580 6634 3 3 0.04% 0.05%
D 7580 6636 67 67 0.88% 1.01%

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 13 444060 2992.91 719 703 148.1
A 0 118 18383 119.35 719 703 148.1
A 15 234 9206 57.4 719 703 148.1
B 4 48 93187 639.63 738 719 144.6
B 14 167 28697 193.53 738 719 144.6
B 15 204 17659 117.18 738 719 144.6
C 14 48 438354 2655.41 701 704 164.8
C 9 16 21159 124.11 701 704 164.8
C 9 247 17756 103.46 701 704 164.8
D 13 235 359916 2134.71 693 672 168.3
D 2 136 123965 732.63 693 672 168.3
D 12 227 55747 327.27 693 672 168.3

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