ASTROSAT CZTI

Data Quality Report

Orbit 11119

Creation date: 2024-06-27T16:08:32.908606
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/AS1G08_071T02_9000001620_11119cztM0_level2.evt modeM0/AS1G08_071T02_9000001620_11119cztM0_level2_quad_clean.evt
Size (bytes)574,254,72073,782,720
Size547.7 MB 70.4 MB
Events in quadrant A4,464,327436,290
Events in quadrant B4,179,440443,886
Events in quadrant C3,289,379444,152
Events in quadrant D4,976,998415,364

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D070

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0177543
B0169122
C0146262
D0195052

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A70973785.326194%
B70972613.677610%
C7097741.042694%
D70974606.481612%

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 7722 7097 200 200 2.59% 2.82%
B 7722 7098 80 80 1.04% 1.13%
C 7722 7098 1 1 0.01% 0.01%
D 7722 7098 363 363 4.70% 5.11%

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 5 1120421 6433.38 850 830 174.0
A 8 15 38810 218.24 850 830 174.0
A 15 174 15834 86.22 850 830 174.0
B 4 239 695239 4142.8 862 841 167.6
B 3 189 52053 305.53 862 841 167.6
B 15 204 33731 196.22 862 841 167.6
C 13 61 6054 26.39 840 845 197.4
C 12 4 5418 23.17 840 845 197.4
C 14 234 3865 15.3 840 845 197.4
D 1 52 915328 4644.13 806 783 196.9
D 10 253 672835 3412.73 806 783 196.9
D 14 34 62657 314.2 806 783 196.9

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