ASTROSAT CZTI

Data Quality Report

Orbit 04352

Creation date: 2024-06-27T14:40:45.366837
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_219T01_9000000540_04352cztM0_level2.evt modeM0/AS1G05_219T01_9000000540_04352cztM0_level2_quad_clean.evt
Size (bytes)713,865,60060,575,040
Size680.8 MB 57.8 MB
Events in quadrant A3,262,607358,446
Events in quadrant B7,928,352324,823
Events in quadrant C6,332,395336,424
Events in quadrant D3,638,002340,993

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140793
B0283292
C0234662
D0152902

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6789590.869053%
B6765107215.846268%
C678982512.152011%
D6789721.060539%

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 7805 6789 2 2 0.03% 0.03%
B 7805 6766 778 778 9.97% 11.50%
C 7805 6789 655 655 8.39% 9.65%
D 7805 6789 23 23 0.29% 0.34%

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 13 251 72455 430.17 810 792 166.6
A 15 234 38521 226.47 810 792 166.6
A 13 14 21244 122.77 810 792 166.6
B 3 0 4770963 32079.24 780 762 148.7
B 14 167 62263 413.59 780 762 148.7
B 15 204 38784 255.7 780 762 148.7
C 9 247 3375446 19331.69 745 748 174.6
C 9 16 31007 173.33 745 748 174.6
C 9 54 10589 56.37 745 748 174.6
D 2 63 330617 1731.55 776 752 190.5
D 2 136 144781 756.05 776 752 190.5
D 10 172 81997 426.48 776 752 190.5

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