ASTROSAT CZTI

Data Quality Report

Orbit 36536

Creation date: 2024-06-27T21:28:05.076180
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/AS1A11_089T02_9000005216_36536cztM0_level2.evt modeM0/AS1A11_089T02_9000005216_36536cztM0_level2_quad_clean.evt
Size (bytes)464,034,24095,431,680
Size442.5 MB 91.0 MB
Events in quadrant A2,792,426658,907
Events in quadrant B2,717,663661,276
Events in quadrant C3,717,517628,771
Events in quadrant D4,489,977593,780

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0270
B0270
C0270
D0280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0112593
B0109812
C0143322
D0169292

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01000
B01000
C01000
D01000

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4957140.282429%
B4957130.262255%
C49572645.325802%
D49572374.781118%

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 7050 4958 5 5 0.07% 0.10%
B 7050 4958 6 6 0.09% 0.12%
C 7050 4958 179 179 2.54% 3.61%
D 7050 4958 230 230 3.26% 4.64%

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 197290 1507.59 657 647 130.4
A 15 223 31697 238.05 657 647 130.4
A 7 3 11769 85.27 657 647 130.4
B 5 172 45918 378.33 642 628 119.7
B 0 213 35717 293.12 642 628 119.7
B 5 255 34764 285.16 642 628 119.7
C 0 10 681283 4899.97 608 614 138.9
C 14 254 305319 2193.5 608 614 138.9
C 15 214 209924 1506.77 608 614 138.9
D 12 235 819327 5431.5 626 611 150.7
D 2 153 360387 2386.81 626 611 150.7
D 7 223 231220 1529.9 626 611 150.7

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