ASTROSAT CZTI

Data Quality Report

Orbit 34032

Creation date: 2024-06-27T20:55:38.820427
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/AS1A06_003T04_9000004866_34032cztM0_level2.evt modeM0/AS1A06_003T04_9000004866_34032cztM0_level2_quad_clean.evt
Size (bytes)440,959,68076,567,680
Size420.5 MB 73.0 MB
Events in quadrant A2,650,410513,268
Events in quadrant B3,181,106506,713
Events in quadrant C3,418,001493,916
Events in quadrant D3,770,171458,493

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0360
B0360
C0360
D0370

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0106503
B0125442
C0133142
D0144942

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01000
B01000
C01000
D01000

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4936100.202593%
B49361462.957861%
C49361192.410859%
D49362555.166126%

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 7089 4936 6 6 0.08% 0.12%
B 7089 4937 78 78 1.10% 1.58%
C 7089 4937 100 100 1.41% 2.03%
D 7089 4937 223 223 3.15% 4.52%

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 31 30266 228.03 662 651 129.9
A 15 169 23699 177.46 662 651 129.9
A 13 6 20364 151.79 662 651 129.9
B 5 172 411081 3395.88 648 636 120.9
B 0 189 67144 550.26 648 636 120.9
B 0 219 43781 356.97 648 636 120.9
C 0 10 467799 3320.28 620 626 140.7
C 15 214 232223 1646.0 620 626 140.7
C 4 254 146930 1039.81 620 626 140.7
D 10 118 354997 2340.73 619 604 151.4
D 8 195 341507 2251.63 619 604 151.4
D 13 249 254970 1680.06 619 604 151.4

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