ASTROSAT CZTI

Data Quality Report

Orbit 13570

Creation date: 2024-06-27T16:42:49.822038
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_047T01_9000002002_13570cztM0_level2.evt modeM0/AS1G08_047T01_9000002002_13570cztM0_level2_quad_clean.evt
Size (bytes)945,115,200166,006,080
Size901.3 MB 158.3 MB
Events in quadrant A6,054,2371,044,978
Events in quadrant B6,652,4381,048,088
Events in quadrant C6,405,3051,039,306
Events in quadrant D8,613,073978,608

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02720
B02720
C02720
D02720

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0270794
B0285283
C0272703
D0345933

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0170

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A13266480.361827%
B132662411.816674%
C13266480.361827%
D132664323.256445%

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 15002 13268 2 2 0.01% 0.02%
B 15002 13269 115 115 0.77% 0.87%
C 15002 13269 0 0 0.00% 0.00%
D 15002 13269 335 335 2.23% 2.52%

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 2 250 34814 105.73 1553 1519 314.9
A 4 2 17170 49.7 1553 1519 314.9
A 1 162 14682 41.8 1553 1519 314.9
B 3 64 247353 830.87 1549 1511 295.9
B 0 182 170248 570.28 1549 1511 295.9
B 4 142 64808 213.92 1549 1511 295.9
C 3 233 529294 1517.08 1502 1507 347.9
C 0 207 19180 50.8 1502 1507 347.9
C 13 61 10828 26.79 1502 1507 347.9
D 13 122 1346612 3761.18 1482 1444 357.6
D 5 222 495703 1381.98 1482 1444 357.6
D 2 14 367738 1024.18 1482 1444 357.6

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