ASTROSAT CZTI

Data Quality Report

Orbit 05049

Creation date: 2024-06-27T14:50:38.782322
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_218T04_9000000640_05049cztM0_level2.evt modeM0/AS1G05_218T04_9000000640_05049cztM0_level2_quad_clean.evt
Size (bytes)480,245,76085,020,480
Size458.0 MB 81.1 MB
Events in quadrant A3,268,923539,313
Events in quadrant B3,314,857530,210
Events in quadrant C3,267,877522,326
Events in quadrant D4,226,646504,782

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01422
B01420
C01422
D01426

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0230

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A014540165
B014540195
C014633200
D017491252

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A68781011.468450%
B6862871.267852%
C6856500.729288%
D68521432.086982%

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 9155 6945 16 16 0.17% 0.23%
B 9155 6948 0 0 0.00% 0.00%
C 9155 6948 0 0 0.00% 0.00%
D 9155 6944 57 57 0.62% 0.82%

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 60066 351.04 831 815 168.8
A 0 226 8454 45.26 831 815 168.8
A 12 194 8010 42.63 831 815 168.8
B 15 204 55054 339.52 828 812 159.8
B 0 219 26870 163.11 828 812 159.8
B 12 111 14350 84.74 828 812 159.8
C 1 16 144354 775.74 793 797 185.1
C 14 67 28852 151.6 793 797 185.1
C 13 61 6518 30.91 793 797 185.1
D 1 7 436508 2205.66 794 771 197.6
D 2 136 218256 1100.89 794 771 197.6
D 12 233 194522 980.75 794 771 197.6

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
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter