ASTROSAT CZTI

Data Quality Report

Orbit 10075

Creation date: 2024-06-27T15:54:33.075203
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_044T03_9000001446_10075cztM0_level2.evt modeM0/AS1A03_044T03_9000001446_10075cztM0_level2_quad_clean.evt
Size (bytes)299,292,48059,284,800
Size285.4 MB 56.5 MB
Events in quadrant A1,913,013385,542
Events in quadrant B2,005,348390,866
Events in quadrant C1,826,774381,692
Events in quadrant D3,050,351359,094

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A083338
B085963
C082025
D01176113

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0780
B0780
C0780
D0780

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3946611.545869%
B3948641.621074%
C3947441.114771%
D39441634.132860%

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 5184 3949 0 0 0.00% 0.00%
B 5184 3950 8 8 0.15% 0.20%
C 5184 3950 0 0 0.00% 0.00%
D 5184 3950 78 78 1.50% 1.97%

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 53239 539.17 477 467 97.9
A 8 5 12522 123.17 477 467 97.9
A 0 8 8956 86.73 477 467 97.9
B 4 81 64736 692.52 480 469 92.8
B 4 239 28675 303.94 480 469 92.8
B 0 214 17824 187.01 480 469 92.8
C 14 234 5684 48.11 464 464 108.5
C 14 67 5325 44.8 464 464 108.5
C 4 239 5269 44.28 464 464 108.5
D 2 16 595788 5316.19 457 443 112.0
D 8 195 316878 2825.63 457 443 112.0
D 13 137 105690 939.81 457 443 112.0

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