ASTROSAT CZTI

Data Quality Report

Orbit 34250

Creation date: 2024-06-27T20:58:07.375125
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/AS1A11_059T09_9000004888_34250cztM0_level2.evt modeM0/AS1A11_059T09_9000004888_34250cztM0_level2_quad_clean.evt
Size (bytes)444,009,60090,316,800
Size423.4 MB 86.1 MB
Events in quadrant A2,297,340616,333
Events in quadrant B3,375,597613,920
Events in quadrant C3,092,872605,467
Events in quadrant D4,347,252554,437

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A099740
B0131860
C0121780
D0164130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01000
B01000
C01000
D01000

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0370
B0370
C0370
D0380

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A491430.061050%
B49143326.756207%
C49141913.886854%
D49144479.096459%

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 7037 4915 0 0 0.00% 0.00%
B 7037 4915 241 241 3.42% 4.90%
C 7037 4915 139 139 1.98% 2.83%
D 7037 4915 393 393 5.58% 8.00%

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 15 47 29488 251.05 579 569 115.2
A 10 83 23076 195.38 579 569 115.2
A 13 254 8409 68.06 579 569 115.2
B 5 172 785844 7238.17 568 555 108.5
B 4 251 180092 1654.83 568 555 108.5
B 0 182 85184 780.04 568 555 108.5
C 0 10 318564 2462.97 556 562 129.1
C 0 207 210530 1626.23 556 562 129.1
C 15 214 210218 1623.81 556 562 129.1
D 7 80 1291103 9594.34 539 523 134.5
D 8 195 535374 3976.15 539 523 134.5
D 13 249 190012 1408.69 539 523 134.5

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