ASTROSAT CZTI

Data Quality Report

Orbit 04149

Creation date: 2024-06-27T14:38:03.819292
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_240T01_9000000536_04149cztM0_level2.evt modeM0/AS1G05_240T01_9000000536_04149cztM0_level2_quad_clean.evt
Size (bytes)401,351,04072,040,320
Size382.8 MB 68.7 MB
Events in quadrant A3,027,543438,822
Events in quadrant B3,021,920441,224
Events in quadrant C2,780,386434,757
Events in quadrant D2,892,960423,529

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131362
B0131081
C0128181
D0132261

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6352520.818640%
B6352390.613980%
C6352170.267632%
D6352470.739924%

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 7352 6353 9 9 0.12% 0.14%
B 7352 6353 5 5 0.07% 0.08%
C 7352 6353 0 0 0.00% 0.00%
D 7352 6353 15 15 0.20% 0.24%

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 3 1 85385 560.96 738 720 150.9
A 0 50 44545 290.37 738 720 150.9
A 8 15 27360 176.51 738 720 150.9
B 10 16 83320 572.05 740 723 144.4
B 14 167 18365 122.18 740 723 144.4
B 4 81 15052 99.24 740 723 144.4
C 13 61 5891 31.32 709 712 165.4
C 1 16 4555 23.24 709 712 165.4
C 10 65 2736 12.24 709 712 165.4
D 13 239 67966 388.8 715 695 173.0
D 12 233 50873 290.01 715 695 173.0
D 2 232 44648 254.03 715 695 173.0

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