ASTROSAT CZTI

Data Quality Report

Orbit 30502

Creation date: 2024-06-27T20:16:07.911756
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/AS1A10_053T47_9000004386_30502cztM0_level2.evt modeM0/AS1A10_053T47_9000004386_30502cztM0_level2_quad_clean.evt
Size (bytes)582,272,64082,388,160
Size555.3 MB 78.6 MB
Events in quadrant A3,502,789516,988
Events in quadrant B5,695,868510,152
Events in quadrant C3,680,158488,504
Events in quadrant D4,275,957486,250

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0147672
B0218042
C0151712
D0170762

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7077961.356507%
B70771982.797796%
C70771602.260845%
D70771271.794546%

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 7697 7078 4 4 0.05% 0.06%
B 7697 7078 28 28 0.36% 0.40%
C 7697 7078 23 23 0.30% 0.32%
D 7697 7078 65 65 0.84% 0.92%

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 8 192 26510 142.66 895 878 179.7
A 12 96 20352 108.39 895 878 179.7
A 13 254 13392 69.65 895 878 179.7
B 6 159 2005678 11938.85 877 856 167.9
B 0 229 202513 1200.88 877 856 167.9
B 12 111 20763 118.55 877 856 167.9
C 14 238 137454 694.78 844 852 196.6
C 10 22 127057 641.89 844 852 196.6
C 0 10 62978 315.98 844 852 196.6
D 12 227 441632 2148.48 862 839 205.2
D 8 195 418371 2035.1 862 839 205.2
D 2 250 49254 235.98 862 839 205.2

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