ASTROSAT CZTI

Data Quality Report

Orbit 39079

Creation date: 2024-06-27T22:00:09.349035
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/AS1T05_067T01_9000005432_39079cztM0_level2.fits modeM0/AS1T05_067T01_9000005432_39079cztM0_level2_quad_clean.evt
Size (bytes)406,693,44089,064,000
Size387.9 MB 84.9 MB
Events in quadrant A2,875,312610,525
Events in quadrant B2,662,233632,032
Events in quadrant C5,772,696516,682
Events in quadrant D3,314,396550,998

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0118873
B0115252
C0207512
D0134052

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01120
B01120
C01120
D01120

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0270
B0270
C0270
D0280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5524150.271542%
B5524100.181028%
C552491716.600290%
D5524390.706010%

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 7108 5525 8 8 0.11% 0.14%
B 7108 5525 2 2 0.03% 0.04%
C 7108 5525 818 818 11.51% 14.81%
D 7108 5525 31 31 0.44% 0.56%

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 415287 3329.4 617 604 124.6
A 13 248 40175 317.71 617 604 124.6
A 7 3 15483 119.46 617 604 124.6
B 5 184 163572 1368.74 615 598 119.1
B 5 172 33216 273.94 615 598 119.1
B 0 190 32147 264.97 615 598 119.1
C 15 208 3091299 23132.02 575 578 133.6
C 15 214 225947 1686.74 575 578 133.6
C 3 233 177912 1327.23 575 578 133.6
D 12 235 830026 5662.07 601 583 146.5
D 13 249 96411 654.16 601 583 146.5
D 12 233 35656 239.42 601 583 146.5

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