ASTROSAT CZTI

Data Quality Report

Orbit 42719

Creation date: 2024-06-27T22:43:25.502421
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/AS1A05_013T01_9000005822_42719cztM0_level2.fits modeM0/AS1A05_013T01_9000005822_42719cztM0_level2_quad_clean.evt
Size (bytes)298,316,16088,534,080
Size284.5 MB 84.4 MB
Events in quadrant A2,921,740602,605
Events in quadrant B2,486,414617,122
Events in quadrant C2,488,733579,895
Events in quadrant D2,752,349527,924

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0116372
B0106572
C0102842
D0117542

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280
B0290
C0290
D0290

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5045240.475719%
B5045571.129832%
C5045140.277502%
D50451142.259663%

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 6988 5046 12 12 0.17% 0.24%
B 6988 5046 47 47 0.67% 0.93%
C 6988 5046 6 6 0.09% 0.12%
D 6988 5046 100 100 1.43% 1.98%

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 529185 4476.34 579 569 118.1
A 12 189 65725 551.74 579 569 118.1
A 13 248 44732 373.97 579 569 118.1
B 5 255 104183 936.88 575 559 110.6
B 5 172 83904 753.54 575 559 110.6
B 0 229 16511 144.22 575 559 110.6
C 15 214 210108 1617.89 560 565 129.5
C 2 16 43252 329.59 560 565 129.5
C 14 254 24575 185.38 560 565 129.5
D 2 249 230686 1689.81 553 537 136.2
D 12 6 91034 664.45 553 537 136.2
D 5 70 80425 586.55 553 537 136.2

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