ASTROSAT CZTI

Data Quality Report

Orbit 03546

Creation date: 2024-06-27T14:30:47.408942
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_045T01_9000000468_03546cztM0_level2.evt modeM0/AS1G05_045T01_9000000468_03546cztM0_level2_quad_clean.evt
Size (bytes)447,151,68074,833,920
Size426.4 MB 71.4 MB
Events in quadrant A2,816,964473,254
Events in quadrant B3,030,060472,688
Events in quadrant C4,619,956458,626
Events in quadrant D2,682,758457,549

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0122682
B0128201
C0177631
D0121951

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5783751.296905%
B5783460.795435%
C57832764.772609%
D5783530.916479%

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 7098 5783 16 16 0.23% 0.28%
B 7098 5784 5 5 0.07% 0.09%
C 7098 5783 187 187 2.63% 3.23%
D 7098 5783 17 17 0.24% 0.29%

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 15 56816 405.22 681 668 138.6
A 3 1 52789 376.16 681 668 138.6
A 0 50 42412 301.27 681 668 138.6
B 15 204 204746 1586.98 687 671 128.6
B 0 229 32461 247.21 687 671 128.6
B 0 183 21133 159.12 687 671 128.6
C 1 192 1099722 7181.67 658 663 153.0
C 4 248 844275 5512.48 658 663 153.0
C 14 48 64085 414.42 658 663 153.0
D 13 239 89626 556.88 666 648 159.8
D 13 223 39004 240.06 666 648 159.8
D 2 37 9154 53.24 666 648 159.8

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