ASTROSAT CZTI

Data Quality Report

Orbit 18582

Creation date: 2024-06-27T17:51:53.543515
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/AS1A05_072T02_9000002762_18582cztM0_level2.evt modeM0/AS1A05_072T02_9000002762_18582cztM0_level2_quad_clean.evt
Size (bytes)473,241,60069,203,520
Size451.3 MB 66.0 MB
Events in quadrant A3,323,125413,691
Events in quadrant B3,365,600419,340
Events in quadrant C3,367,609405,774
Events in quadrant D3,834,950403,850

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0180
C0180
D0180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141472
B0141822
C0141112
D0158752

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64961001.539409%
B6496671.031404%
C6496981.508621%
D64961922.955665%

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 7626 6496 0 0 0.00% 0.00%
B 7626 6496 1 1 0.01% 0.02%
C 7626 6496 1 1 0.01% 0.02%
D 7626 6496 116 116 1.52% 1.79%

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 14 111 48674 279.08 850 831 171.4
A 13 254 9710 51.79 850 831 171.4
A 0 226 7356 38.06 850 831 171.4
B 0 190 35260 213.19 848 828 161.5
B 12 111 19006 112.55 848 828 161.5
B 11 111 16925 99.66 848 828 161.5
C 14 238 130061 676.85 821 828 190.9
C 4 254 28440 144.62 821 828 190.9
C 13 61 5799 26.04 821 828 190.9
D 1 52 473486 2361.31 824 801 200.2
D 7 238 126488 627.87 824 801 200.2
D 10 50 93546 463.31 824 801 200.2

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