ASTROSAT CZTI

Data Quality Report

Orbit 05545

Creation date: 2024-06-27T14:56:33.529563
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/AS1G06_084T01_9000000710_05545cztM0_level2.evt modeM0/AS1G06_084T01_9000000710_05545cztM0_level2_quad_clean.evt
Size (bytes)495,146,88084,274,560
Size472.2 MB 80.4 MB
Events in quadrant A3,182,538526,346
Events in quadrant B3,868,687524,780
Events in quadrant C3,201,268530,073
Events in quadrant D4,285,441500,941

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140513
B0158802
C0142262
D0173832

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6735921.365999%
B67351872.776540%
C6735831.232368%
D67352954.380104%

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 7790 6736 1 1 0.01% 0.01%
B 7790 6736 46 46 0.59% 0.68%
C 7790 6736 19 19 0.24% 0.28%
D 7790 6736 171 171 2.20% 2.54%

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 50 9854 53.28 823 804 169.8
A 12 194 8227 43.7 823 804 169.8
A 0 226 8179 43.42 823 804 169.8
B 15 204 328496 2057.35 822 801 159.3
B 10 246 274935 1721.08 822 801 159.3
B 11 51 27362 166.76 822 801 159.3
C 9 16 89856 484.39 789 793 183.9
C 1 16 32276 171.23 789 793 183.9
C 13 61 6413 30.57 789 793 183.9
D 2 63 642767 3331.86 784 759 192.7
D 2 152 429733 2226.26 784 759 192.7
D 8 195 110042 567.15 784 759 192.7

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