ASTROSAT CZTI

Data Quality Report

Orbit 05010

Creation date: 2024-06-27T14:50:07.639914
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/AS1T01_132T01_9000000636_05010cztM0_level2.evt modeM0/AS1T01_132T01_9000000636_05010cztM0_level2_quad_clean.evt
Size (bytes)492,134,40058,728,960
Size469.3 MB 56.0 MB
Events in quadrant A3,171,706333,658
Events in quadrant B3,557,151332,375
Events in quadrant C3,236,207328,970
Events in quadrant D4,485,322316,946

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138282
B0147891
C0139681
D0177941

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66811151.721299%
B66811201.796138%
C6681921.377039%
D66813164.729831%

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 7636 6682 0 0 0.00% 0.00%
B 7636 6682 1 1 0.01% 0.01%
C 7636 6682 0 0 0.00% 0.00%
D 7636 6682 188 188 2.46% 2.81%

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 49374 301.31 796 779 161.3
A 13 251 22592 135.25 796 779 161.3
A 8 15 16645 98.38 796 779 161.3
B 15 204 183423 1200.62 800 781 152.1
B 8 3 161780 1058.35 800 781 152.1
B 15 54 46276 299.07 800 781 152.1
C 1 16 210178 1174.14 774 776 178.3
C 13 61 6422 31.66 774 776 178.3
C 12 4 3659 16.17 774 776 178.3
D 2 33 517297 2774.74 770 747 186.2
D 12 227 373157 2000.46 770 747 186.2
D 13 235 337521 1809.04 770 747 186.2

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