ASTROSAT CZTI

Data Quality Report

Orbit 03869

Creation date: 2024-06-27T14:34:36.231686
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_083T01_9000000494_03869cztM0_level2.evt modeM0/AS1G05_083T01_9000000494_03869cztM0_level2_quad_clean.evt
Size (bytes)347,575,68058,343,040
Size331.5 MB 55.6 MB
Events in quadrant A2,335,908368,966
Events in quadrant B2,216,228368,156
Events in quadrant C2,523,650361,950
Events in quadrant D3,139,017345,799

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A011051774
B010549798
C0114961109
D0139171261

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0999
B0997
C010012
D01008

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4583631.374645%
B458750.109004%
C4570170.371991%
D45662445.343846%

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 5087 4632 49 49 0.96% 1.06%
B 5085 4636 1 1 0.02% 0.02%
C 5083 4621 13 13 0.26% 0.28%
D 5081 4611 262 262 5.16% 5.68%

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 0 118 232552 2312.06 483 473 100.4
A 13 251 177023 1758.86 483 473 100.4
A 8 15 26845 262.73 483 473 100.4
B 15 204 202437 2105.98 492 480 95.9
B 4 48 55692 575.74 492 480 95.9
B 10 246 20151 205.13 492 480 95.9
C 2 53 677628 6135.88 470 473 110.4
C 1 16 4249 34.22 470 473 110.4
C 13 61 3997 31.93 470 473 110.4
D 14 34 1183047 10500.05 460 447 112.6
D 2 32 43294 380.43 460 447 112.6
D 13 248 36706 321.94 460 447 112.6

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
Veto Counter