ASTROSAT CZTI

Data Quality Report

Orbit 15833

Creation date: 2024-06-27T17:14:08.149083
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/AS1A04_143T01_9000002344_15833cztM0_level2.evt modeM0/AS1A04_143T01_9000002344_15833cztM0_level2_quad_clean.evt
Size (bytes)480,176,64096,275,520
Size457.9 MB 91.8 MB
Events in quadrant A3,995,877614,004
Events in quadrant B3,458,952646,796
Events in quadrant C3,276,396619,071
Events in quadrant D3,388,819601,667

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160253
B0143162
C0135772
D0143432

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0210

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62113335.361455%
B6211891.432942%
C6211681.094832%
D6211470.756722%

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 7492 6213 193 193 2.58% 3.11%
B 7492 6213 22 22 0.29% 0.35%
C 7492 6213 0 0 0.00% 0.00%
D 7492 6213 17 17 0.23% 0.27%

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 15 239 775349 4853.36 788 774 159.6
A 9 143 123553 769.31 788 774 159.6
A 14 239 50779 313.32 788 774 159.6
B 4 173 122492 785.94 815 797 154.8
B 4 216 88393 565.72 815 797 154.8
B 0 244 34369 216.82 815 797 154.8
C 14 238 121692 664.92 785 793 181.8
C 3 233 63590 345.37 785 793 181.8
C 10 22 24024 127.77 785 793 181.8
D 1 52 232934 1210.89 788 766 191.7
D 12 221 109611 567.69 788 766 191.7
D 12 233 25198 127.43 788 766 191.7

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