ASTROSAT CZTI

Data Quality Report

Orbit 48374

Creation date: 2024-09-07T20:14:02.366297
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_029T01_9000006426_48374cztM0_level2.fits modeM0/AS1A13_029T01_9000006426_48374cztM0_level2_quad_clean.evt
Size (bytes)429,523,20097,680,960
Size409.6 MB 93.2 MB
Events in quadrant A6,210,167646,106
Events in quadrant B3,641,600666,905
Events in quadrant C2,587,747651,672
Events in quadrant D3,014,575592,083

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0231351
B0145713
C0117971
D0129951

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A57392784.844049%
B57381823.171837%
C5738350.609969%
D5739771.341697%

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 6919 5739 126 126 1.82% 2.20%
B 6917 5737 63 63 0.91% 1.10%
C 6918 5738 5 5 0.07% 0.09%
D 6919 5739 31 31 0.45% 0.54%

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 3347758 24352.54 660 648 137.4
A 13 248 247211 1793.92 660 648 137.4
A 0 31 61314 441.39 660 648 137.4
B 12 16 486949 3766.2 655 635 129.1
B 0 200 230344 1778.95 655 635 129.1
B 5 255 164438 1268.55 655 635 129.1
C 12 2 37580 241.7 651 654 152.8
C 13 61 4278 23.72 651 654 152.8
C 14 254 4277 23.71 651 654 152.8
D 2 165 367997 2260.26 655 635 162.5
D 2 249 62623 381.39 655 635 162.5
D 2 234 27292 164.01 655 635 162.5

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