ASTROSAT CZTI

Data Quality Report

Orbit 47208

Creation date: 2024-06-27T23:32:52.346866
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_019T01_9000006302_47208cztM0_level2.fits modeM0/AS1A13_019T01_9000006302_47208cztM0_level2_quad_clean.evt
Size (bytes)1,794,620,160263,448,000
Size1.7 GB 251.2 MB
Events in quadrant A34,312,5181,152,834
Events in quadrant B10,162,6871,942,927
Events in quadrant C8,309,6121,899,178
Events in quadrant D12,221,2101,708,661

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01147306
B0426663
C0383913
D0494363

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03740
B03740
C03740
D03740

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A18454849446.027961%
B184545522.991221%
C18455840.455161%
D184556763.662964%

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 19739 18454 7608 7608 38.54% 41.23%
B 19739 18454 210 210 1.06% 1.14%
C 19740 18458 18 18 0.09% 0.10%
D 19740 18458 629 629 3.19% 3.41%

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 9 191 18493022 49329.67 1789 1747 374.9
A 10 83 8830814 23553.54 1789 1747 374.9
A 14 235 38216 97.29 1789 1747 374.9
B 15 201 796340 1976.75 2052 1987 401.8
B 0 200 384079 950.84 2052 1987 401.8
B 0 190 292833 723.77 2052 1987 401.8
C 14 254 268401 551.27 2042 2048 483.2
C 0 207 27414 52.5 2042 2048 483.2
C 1 3 22786 42.92 2042 2048 483.2
D 6 112 2561838 4946.49 2029 1964 517.5
D 8 48 382838 735.97 2029 1964 517.5
D 2 249 223830 428.72 2029 1964 517.5

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