ASTROSAT CZTI

Data Quality Report

Orbit 46507

Creation date: 2024-06-27T23:24:01.524703
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/AS1A13_068T07_9000006222_46507cztM0_level2.fits modeM0/AS1A13_068T07_9000006222_46507cztM0_level2_quad_clean.evt
Size (bytes)280,756,80061,297,920
Size267.8 MB 58.5 MB
Events in quadrant A3,482,958388,429
Events in quadrant B2,383,435411,016
Events in quadrant C1,956,168414,644
Events in quadrant D2,272,897373,197

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0760
B0760
C0760
D0760

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0127162
B095422
C084862
D093842

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A380339410.360242%
B38033579.387326%
C38031383.628714%
D38032265.942677%

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 3853 3805 0 0 0.00% 0.00%
B 3853 3805 83 83 2.15% 2.18%
C 3853 3805 9 9 0.23% 0.24%
D 3853 3805 54 54 1.40% 1.42%

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 10 83 1569195 15186.6 481 468 103.3
A 9 191 20433 193.28 481 468 103.3
A 13 248 7650 69.53 481 468 103.3
B 5 172 199874 2028.97 476 461 98.3
B 5 255 123401 1250.88 476 461 98.3
B 4 171 69687 704.36 476 461 98.3
C 14 254 36331 308.63 480 481 116.2
C 9 54 28776 243.59 480 481 116.2
C 1 3 19066 160.0 480 481 116.2
D 13 249 227418 1829.3 482 465 124.1
D 8 176 106558 855.14 482 465 124.1
D 7 80 49058 391.67 482 465 124.1

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