ASTROSAT CZTI

Data Quality Report

Orbit 03430

Creation date: 2024-06-27T14:28:53.965107
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_167T01_9000000456_03430cztM0_level2.evt modeM0/AS1G05_167T01_9000000456_03430cztM0_level2_quad_clean.evt
Size (bytes)487,736,64092,718,720
Size465.1 MB 88.4 MB
Events in quadrant A3,128,784600,364
Events in quadrant B3,646,588606,050
Events in quadrant C4,400,721588,504
Events in quadrant D3,171,820577,332

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0150

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132553
B0149572
C0170562
D0134382

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6242520.833066%
B6242991.586030%
C62422974.758090%
D6242691.105415%

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 7577 6243 0 0 0.00% 0.00%
B 7577 6243 21 21 0.28% 0.34%
C 7577 6243 176 176 2.32% 2.82%
D 7577 6243 16 16 0.21% 0.26%

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 14 249 23321 140.65 795 780 160.3
A 8 15 17253 102.79 795 780 160.3
A 0 118 14800 87.48 795 780 160.3
B 15 204 310099 2020.09 810 794 153.1
B 4 81 92945 601.84 810 794 153.1
B 2 249 34409 219.54 810 794 153.1
C 7 220 1087675 6069.85 777 787 179.1
C 1 192 209007 1162.83 777 787 179.1
C 6 80 29394 159.76 777 787 179.1
D 9 85 83469 440.9 779 760 187.6
D 13 223 42388 221.91 779 760 187.6
D 2 37 38613 201.78 779 760 187.6

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