ASTROSAT CZTI

Data Quality Report

Orbit 43241

Creation date: 2024-06-27T22:49:40.658140
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/AS1A06_006T01_9000005860_43241cztM0_level2.fits modeM0/AS1A06_006T01_9000005860_43241cztM0_level2_quad_clean.evt
Size (bytes)337,852,80087,073,920
Size322.2 MB 83.0 MB
Events in quadrant A3,082,439587,329
Events in quadrant B2,288,836620,809
Events in quadrant C2,623,075590,530
Events in quadrant D4,114,248480,584

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0310
B0320
C0320
D0320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0123362
B0102612
C0107112
D0157882

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5100470.921569%
B510040.078431%
C510080.156863%
D510066313.000000%

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 7074 5101 47 47 0.66% 0.92%
B 7074 5101 1 1 0.01% 0.02%
C 7074 5101 5 5 0.07% 0.10%
D 7074 5101 624 624 8.82% 12.23%

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 558932 4759.27 574 564 117.3
A 15 237 197878 1681.81 574 564 117.3
A 12 189 81805 692.46 574 564 117.3
B 5 255 21617 189.24 575 560 111.3
B 12 111 13891 119.81 575 560 111.3
B 11 111 12885 110.76 575 560 111.3
C 15 214 234176 1730.82 573 578 135.0
C 14 254 125708 927.14 573 578 135.0
C 15 111 20514 147.71 573 578 135.0
D 1 52 1899418 14808.32 525 511 128.2
D 2 249 168142 1307.24 525 511 128.2
D 12 233 24899 190.19 525 511 128.2

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