ASTROSAT CZTI

Data Quality Report

Orbit 08732

Creation date: 2024-06-27T15:36:28.749437
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/AS1G07_005T02_9000001214_08732cztM0_level2.evt modeM0/AS1G07_005T02_9000001214_08732cztM0_level2_quad_clean.evt
Size (bytes)544,371,840132,992,640
Size519.2 MB 126.8 MB
Events in quadrant A3,906,699858,796
Events in quadrant B4,027,078872,688
Events in quadrant C3,874,304865,417
Events in quadrant D4,096,521836,473

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01760
B01760
C01760
D01760

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0177554
B0179373
C0177473
D0184973

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A85591111.296880%
B85591461.705807%
C8559770.899638%
D8559911.063208%

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 9054 8562 3 3 0.03% 0.04%
B 9054 8562 2 2 0.02% 0.02%
C 9054 8562 2 2 0.02% 0.02%
D 9054 8562 42 42 0.46% 0.49%

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 81612 403.05 982 957 200.1
A 13 248 17590 83.12 982 957 200.1
A 15 174 16850 79.42 982 957 200.1
B 4 48 21801 109.98 999 972 189.4
B 0 197 20665 103.98 999 972 189.4
B 12 111 19564 98.17 999 972 189.4
C 1 3 32822 142.19 973 973 224.0
C 14 234 12439 51.19 973 973 224.0
C 1 16 11658 47.7 973 973 224.0
D 7 71 173570 676.89 957 933 255.0
D 1 52 72250 279.62 957 933 255.0
D 2 152 59516 229.7 957 933 255.0

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