ASTROSAT CZTI

Data Quality Report

Orbit 13690

Creation date: 2024-06-27T16:44:35.320022
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/AS1G08_070T01_9000002028_13690cztM0_level2.evt modeM0/AS1G08_070T01_9000002028_13690cztM0_level2_quad_clean.evt
Size (bytes)508,204,80098,104,320
Size484.7 MB 93.6 MB
Events in quadrant A3,051,073654,384
Events in quadrant B3,814,146700,040
Events in quadrant C3,200,219641,022
Events in quadrant D4,902,562540,308

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0129383
B0151602
C0133472
D0186862

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A622880.128452%
B62281983.179191%
C622840.064226%
D622865010.436737%

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 7454 6230 0 0 0.00% 0.00%
B 7454 6230 85 85 1.14% 1.36%
C 7454 6230 0 0 0.00% 0.00%
D 7454 6230 519 519 6.96% 8.33%

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 0 226 6996 38.76 792 774 160.5
A 1 162 6609 36.35 792 774 160.5
A 12 194 5776 31.16 792 774 160.5
B 0 219 369886 2469.41 801 788 149.5
B 8 250 281534 1878.3 801 788 149.5
B 12 111 16827 107.31 801 788 149.5
C 3 233 164202 908.78 776 783 179.8
C 14 234 11890 61.77 776 783 179.8
C 13 61 5536 26.43 776 783 179.8
D 13 122 1660505 9775.95 704 685 169.8
D 5 222 347435 2042.27 704 685 169.8
D 8 195 97921 572.69 704 685 169.8

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