ASTROSAT CZTI

Data Quality Report

Orbit 08769

Creation date: 2024-06-27T15:36:57.352334
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_010T01_9000001220_08769cztM0_level2.evt modeM0/AS1G07_010T01_9000001220_08769cztM0_level2_quad_clean.evt
Size (bytes)391,711,68057,087,360
Size373.6 MB 54.4 MB
Events in quadrant A2,132,137382,798
Events in quadrant B1,893,481388,562
Events in quadrant C1,973,225380,329
Events in quadrant D5,606,057308,467

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0760
B0760
C0760
D0760

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A087972
B081411
C084121
D0192851

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3797621.632868%
B3797491.290492%
C3797501.316829%
D3797125533.052410%

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 5027 3797 10 10 0.20% 0.26%
B 5027 3797 0 0 0.00% 0.00%
C 5027 3797 11 11 0.22% 0.29%
D 5027 3797 1152 1152 22.92% 30.34%

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 8 5 208044 2112.51 488 480 98.3
A 13 251 30931 309.92 488 480 98.3
A 13 248 4927 45.26 488 480 98.3
B 12 111 9976 101.55 485 474 93.6
B 11 111 8419 84.91 485 474 93.6
B 10 16 6595 65.41 485 474 93.6
C 9 68 84611 763.85 474 478 110.1
C 14 234 38783 347.77 474 478 110.1
C 13 61 3561 27.99 474 478 110.1
D 2 16 3866157 36086.33 413 404 107.1
D 2 14 44330 410.04 413 404 107.1
D 5 233 41480 383.44 413 404 107.1

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