ASTROSAT CZTI

Data Quality Report

Orbit 44346

Creation date: 2024-06-27T23:02:28.908459
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_008T06_9000005994_44346cztM0_level2.fits modeM0/AS1A13_008T06_9000005994_44346cztM0_level2_quad_clean.evt
Size (bytes)461,615,040101,692,800
Size440.2 MB 97.0 MB
Events in quadrant A4,764,769685,049
Events in quadrant B3,403,741708,927
Events in quadrant C3,242,410672,431
Events in quadrant D5,190,186575,407

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0192361
B0143171
C0141911
D0197471

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62611973.146462%
B6261971.549273%
C62621372.187799%
D626263710.172469%

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 7111 6262 83 83 1.17% 1.33%
B 7111 6262 26 26 0.37% 0.42%
C 7112 6263 104 104 1.46% 1.66%
D 7112 6263 538 538 7.56% 8.59%

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 1612261 10825.11 710 694 148.9
A 13 248 302708 2028.67 710 694 148.9
A 0 243 35810 235.88 710 694 148.9
B 0 219 118301 827.42 716 695 142.1
B 0 229 81425 567.98 716 695 142.1
B 4 173 76633 534.26 716 695 142.1
C 14 254 478085 2917.59 691 698 163.6
C 14 96 22940 135.93 691 698 163.6
C 1 3 12950 74.88 691 698 163.6
D 13 249 1004399 5935.04 666 647 169.1
D 1 52 631927 3732.67 666 647 169.1
D 5 222 364120 2149.16 666 647 169.1

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