ASTROSAT CZTI

Data Quality Report

Orbit 10262

Creation date: 2024-06-27T15:57:01.605900
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/AS1A03_052T01_9000001480_10262cztM0_level2.evt modeM0/AS1A03_052T01_9000001480_10262cztM0_level2_quad_clean.evt
Size (bytes)381,245,76077,938,560
Size363.6 MB 74.3 MB
Events in quadrant A2,621,259513,205
Events in quadrant B2,664,258492,933
Events in quadrant C2,521,787505,095
Events in quadrant D3,395,862496,717

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0246133
B0246131
C0246137
D0238124

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02589715142
B02862117869
C02635215724
D03438120392

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0239
B02814
C02814
D02410

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4979501.004218%
B4785491.024033%
C5023400.796337%
D5226450.861079%

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 7537 5885 0 0 0.00% 0.00%
B 7537 5751 1 1 0.01% 0.02%
C 7536 5881 0 0 0.00% 0.00%
D 7537 5868 3 3 0.04% 0.05%

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 47508 349.36 665 654 134.1
A 3 1 6835 46.09 665 654 134.1
A 0 226 6124 40.79 665 654 134.1
B 4 239 60113 497.74 633 622 119.5
B 0 214 43062 355.08 633 622 119.5
B 11 51 38759 319.08 633 622 119.5
C 9 68 26874 179.37 638 643 146.2
C 13 61 4911 29.18 638 643 146.2
C 14 67 2940 15.71 638 643 146.2
D 8 195 514907 3019.02 670 657 170.3
D 1 52 129266 755.03 670 657 170.3
D 2 16 101160 590.03 670 657 170.3

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