ASTROSAT CZTI

Data Quality Report

Orbit 25529

Creation date: 2024-06-27T19:18:41.210973
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/AS1A07_147T01_9000003722_25529cztM0_level2.evt modeM0/AS1A07_147T01_9000003722_25529cztM0_level2_quad_clean.evt
Size (bytes)459,339,84088,450,560
Size438.1 MB 84.4 MB
Events in quadrant A3,125,823571,924
Events in quadrant B3,202,032583,926
Events in quadrant C3,176,543544,295
Events in quadrant D3,967,047526,814

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132890
B0134430
C0133990
D0160520

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0140
C0140
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6479260.401296%
B6479300.463034%
C6479630.972372%
D6478801.234949%

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 7559 6480 0 0 0.00% 0.00%
B 7559 6480 0 0 0.00% 0.00%
C 7559 6480 0 0 0.00% 0.00%
D 7558 6479 65 65 0.86% 1.00%

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 13 254 9521 53.14 810 794 164.2
A 3 137 7251 39.32 810 794 164.2
A 0 226 6902 37.19 810 794 164.2
B 12 111 18842 117.39 809 790 153.8
B 11 111 16765 103.88 809 790 153.8
B 0 190 15861 98.0 809 790 153.8
C 14 238 125268 688.41 773 780 180.8
C 3 233 32156 173.51 773 780 180.8
C 2 16 8797 44.33 773 780 180.8
D 1 52 784325 4167.02 776 754 188.0
D 8 195 224666 1190.76 776 754 188.0
D 2 234 25873 133.58 776 754 188.0

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