ASTROSAT CZTI

Data Quality Report

Orbit 04355

Creation date: 2024-06-27T14:40:47.482411
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_219T01_9000000540_04355cztM0_level2.evt modeM0/AS1G05_219T01_9000000540_04355cztM0_level2_quad_clean.evt
Size (bytes)538,888,32075,922,560
Size513.9 MB 72.4 MB
Events in quadrant A3,488,888482,071
Events in quadrant B3,373,964480,424
Events in quadrant C5,681,540438,844
Events in quadrant D3,344,829453,892

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143423
B0138452
C0210902
D0140862

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6353921.448135%
B6353841.322210%
C635390014.166535%
D63531091.715725%

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 7588 6353 5 5 0.07% 0.08%
B 7588 6353 2 2 0.03% 0.03%
C 7588 6353 710 710 9.36% 11.18%
D 7588 6353 40 40 0.53% 0.63%

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 8 15 164383 1001.56 807 793 163.3
A 13 251 126181 767.68 807 793 163.3
A 14 111 34439 205.99 807 793 163.3
B 15 204 77494 494.92 807 789 155.0
B 14 167 68132 434.51 807 789 155.0
B 4 48 52604 334.32 807 789 155.0
C 9 247 2779783 16243.58 733 738 171.1
C 9 16 25469 144.55 733 738 171.1
C 12 4 7127 37.34 733 738 171.1
D 2 136 170771 915.98 776 756 185.6
D 4 95 57986 308.34 776 756 185.6
D 13 137 47620 252.49 776 756 185.6

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