ASTROSAT CZTI

Data Quality Report

Orbit 43730

Creation date: 2024-06-27T22:55:06.059416
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_003T01_9000005902_43730cztM0_level2.fits modeM0/AS1A13_003T01_9000005902_43730cztM0_level2_quad_clean.evt
Size (bytes)563,126,400111,781,440
Size537.0 MB 106.6 MB
Events in quadrant A5,264,871744,770
Events in quadrant B4,394,326764,205
Events in quadrant C5,775,803697,153
Events in quadrant D4,857,130682,890

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0203952
B0179492
C0220022
D0194642

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A71233304.632879%
B71243785.306008%
C712384911.919135%
D71233134.394216%

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 8838 7125 206 206 2.33% 2.89%
B 8839 7126 175 175 1.98% 2.46%
C 8838 7125 638 638 7.22% 8.95%
D 8838 7125 230 230 2.60% 3.23%

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 974531 5916.65 794 777 164.6
A 15 174 633247 3842.97 794 777 164.6
A 15 223 367146 2226.1 794 777 164.6
B 12 3 546568 3491.06 797 771 156.3
B 5 235 511235 3265.06 797 771 156.3
B 5 172 99479 631.36 797 771 156.3
C 15 157 1935825 10806.6 755 761 179.1
C 15 158 396272 2208.78 755 761 179.1
C 15 174 379423 2114.68 755 761 179.1
D 5 235 241635 1216.23 782 757 198.1
D 7 80 236585 1190.73 782 757 198.1
D 13 249 229011 1152.49 782 757 198.1

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