ASTROSAT CZTI

Data Quality Report

Orbit 44585

Creation date: 2024-06-27T23:04:11.331684
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_009T03_9000006006_44585cztM0_level2.fits modeM0/AS1A13_009T03_9000006006_44585cztM0_level2_quad_clean.evt
Size (bytes)583,306,560118,330,560
Size556.3 MB 112.8 MB
Events in quadrant A5,570,256816,084
Events in quadrant B4,388,681817,757
Events in quadrant C4,767,821743,625
Events in quadrant D6,282,413681,887

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01560
B01560
C01560
D01560

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0228622
B0182502
C0193682
D0236672

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A75141441.916423%
B75142783.699760%
C75155046.706587%
D75157359.780439%

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 9154 7514 12 12 0.13% 0.16%
B 9154 7514 128 128 1.40% 1.70%
C 9155 7517 428 428 4.68% 5.69%
D 9155 7517 705 705 7.70% 9.38%

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 2171951 12116.25 860 844 179.2
A 13 248 31806 172.79 860 844 179.2
A 0 243 12333 64.12 860 844 179.2
B 5 235 565207 3329.83 852 823 169.5
B 5 172 218273 1282.94 852 823 169.5
B 0 186 150514 883.17 852 823 169.5
C 12 2 1120361 5807.57 812 817 192.8
C 2 14 157949 815.11 812 817 192.8
C 14 254 146072 753.5 812 817 192.8
D 13 249 2073833 10083.91 812 787 205.6
D 1 52 457130 2219.79 812 787 205.6
D 5 222 346384 1681.09 812 787 205.6

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