ASTROSAT CZTI

Data Quality Report

Orbit 09049

Creation date: 2024-06-27T15:40:35.518693
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/AS1A03_046T01_9000001260_09049cztM0_level2.evt modeM0/AS1A03_046T01_9000001260_09049cztM0_level2_quad_clean.evt
Size (bytes)1,288,333,440255,084,480
Size1.2 GB 243.3 MB
Events in quadrant A10,878,4761,642,552
Events in quadrant B8,554,3231,661,496
Events in quadrant C7,884,6421,646,545
Events in quadrant D10,529,2911,581,732

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A041466
B041460
C041561
D041456

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0412
B0416
C0415
D0415

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0506926711
B0441377483
C0417386066
D0500127032

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A172924952.862595%
B172614102.375297%
C173652921.681543%
D172635953.446678%

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 24350 18153 49 49 0.20% 0.27%
B 24350 18070 21 21 0.09% 0.12%
C 24349 18182 1 1 0.00% 0.01%
D 24350 18110 319 319 1.31% 1.76%

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 1258519 3033.4 2072 2032 414.2
A 1 162 486460 1169.5 2072 2032 414.2
A 5 16 454951 1093.43 2072 2032 414.2
B 10 16 174313 446.92 2074 2021 385.5
B 6 51 95801 243.26 2074 2021 385.5
B 4 48 68422 172.24 2074 2021 385.5
C 13 61 15392 29.19 2014 2019 458.2
C 14 234 15150 28.66 2014 2019 458.2
C 8 128 5766 8.18 2014 2019 458.2
D 1 52 1601575 3228.66 1993 1938 495.4
D 2 14 464468 933.56 1993 1938 495.4
D 6 225 420018 843.84 1993 1938 495.4

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