ASTROSAT CZTI

Data Quality Report

Orbit 45994

Creation date: 2024-06-27T23:18:32.285137
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_017T01_9000006148_45994cztM0_level2.fits modeM0/AS1A13_017T01_9000006148_45994cztM0_level2_quad_clean.evt
Size (bytes)360,221,76084,427,200
Size343.5 MB 80.5 MB
Events in quadrant A4,442,687542,673
Events in quadrant B3,353,912578,700
Events in quadrant C2,219,577566,420
Events in quadrant D2,924,570513,815

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0169271
B0133741
C0103841
D0123211

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D050

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A50602114.169960%
B50601202.371542%
C5060160.316206%
D5060791.561265%

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 5059 5059 79 79 1.56% 1.56%
B 5059 5059 65 65 1.28% 1.28%
C 5059 5059 0 0 0.00% 0.00%
D 5059 5059 54 54 1.07% 1.07%

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 2065979 18199.41 549 539 113.5
A 15 223 248405 2184.05 549 539 113.5
A 13 254 7964 65.42 549 539 113.5
B 3 112 1025911 9361.36 557 539 109.5
B 0 189 65835 596.13 557 539 109.5
B 5 255 25889 231.44 557 539 109.5
C 14 254 41180 312.28 555 560 130.1
C 3 233 11000 80.26 555 560 130.1
C 12 2 5035 34.4 555 560 130.1
D 1 52 516829 3745.04 548 531 137.9
D 12 2 173456 1254.34 548 531 137.9
D 2 249 71418 514.19 548 531 137.9

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