ASTROSAT CZTI

Data Quality Report

Orbit 45280

Creation date: 2024-06-27T23:11:52.840916
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_024T03_9000006064_45280cztM0_level2.fits modeM0/AS1A13_024T03_9000006064_45280cztM0_level2_quad_clean.evt
Size (bytes)1,406,450,880280,293,120
Size1.3 GB 267.3 MB
Events in quadrant A15,483,2061,864,171
Events in quadrant B10,453,6911,885,774
Events in quadrant C10,544,7281,836,106
Events in quadrant D14,163,1791,635,993

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0590393
B0436543
C0443003
D0549113

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03700
B03700
C03700
D03700

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A183456293.428727%
B183459645.254838%
C183457604.142818%
D1834512967.064595%

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 20040 18345 199 199 0.99% 1.08%
B 20040 18345 624 624 3.11% 3.40%
C 20040 18345 546 546 2.72% 2.98%
D 20040 18345 1069 1069 5.33% 5.83%

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 6817897 16030.94 2046 2003 425.2
A 13 248 716848 1681.31 2046 2003 425.2
A 0 243 27337 59.58 2046 2003 425.2
B 4 171 1442114 3631.67 2009 1948 396.6
B 5 32 561455 1410.91 2009 1948 396.6
B 0 183 104288 258.07 2009 1948 396.6
C 14 254 2195598 4686.01 1996 2010 468.1
C 12 16 237181 502.38 1996 2010 468.1
C 3 233 178339 376.68 1996 2010 468.1
D 13 249 2039692 4118.58 1977 1922 494.8
D 2 249 1536165 3100.89 1977 1922 494.8
D 12 33 1087131 2193.34 1977 1922 494.8

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