ASTROSAT CZTI

Data Quality Report

Orbit 16033

Creation date: 2024-06-27T17:17:03.489945
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_012T01_9000002370_16033cztM0_level2.evt modeM0/AS1G08_012T01_9000002370_16033cztM0_level2_quad_clean.evt
Size (bytes)445,625,28068,371,200
Size425.0 MB 65.2 MB
Events in quadrant A3,241,297406,489
Events in quadrant B3,328,722411,251
Events in quadrant C3,312,848397,688
Events in quadrant D3,164,083394,255

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137683
B0138202
C0137904
D0137982

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6604811.226529%
B6604851.287099%
C6603971.469029%
D6604741.120533%

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 7630 6605 0 0 0.00% 0.00%
B 7630 6605 1 1 0.01% 0.02%
C 7630 6605 0 0 0.00% 0.00%
D 7630 6605 15 15 0.20% 0.23%

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 9 143 11779 64.89 837 821 168.9
A 0 226 7336 38.58 837 821 168.9
A 15 223 6278 32.32 837 821 168.9
B 0 230 24888 151.19 830 812 159.2
B 15 222 22708 137.5 830 812 159.2
B 12 111 19160 115.22 830 812 159.2
C 14 238 121884 658.09 794 800 184.0
C 3 233 89009 479.41 794 800 184.0
C 13 61 5673 26.48 794 800 184.0
D 2 33 47571 232.38 815 790 201.3
D 2 234 20660 98.7 815 790 201.3
D 13 172 20647 98.64 815 790 201.3

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