ASTROSAT CZTI

Data Quality Report

Orbit 48213

Creation date: 2024-08-27T18:50:42.712608
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/AS1C09_004T05_9000006416_48213cztM0_level2.fits modeM0/AS1C09_004T05_9000006416_48213cztM0_level2_quad_clean.evt
Size (bytes)425,128,32084,885,120
Size405.4 MB 81.0 MB
Events in quadrant A6,974,518725,297
Events in quadrant B1,726,65562,053
Events in quadrant C2,775,686696,157
Events in quadrant D3,765,353645,428

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0251681
B087901
C0128921
D0156001

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62872403.817401%
B6243605196.924556%
C6288450.715649%
D62881662.639949%

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 7417 6287 26 26 0.35% 0.41%
B 7418 6243 90 90 1.21% 1.44%
C 7418 6289 7 7 0.09% 0.11%
D 7418 6289 104 104 1.40% 1.65%

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 4225631 28813.07 703 689 146.6
A 13 254 13346 86.32 703 689 146.6
A 13 248 12251 78.85 703 689 146.6
B 2 177 799183 55471.62 62 60 14.4
B 10 7 582483 40429.26 62 60 14.4
B 0 200 32072 2222.13 62 60 14.4
C 4 0 28675 172.63 690 694 162.1
C 14 254 23210 138.92 690 694 162.1
C 12 2 22010 131.51 690 694 162.1
D 2 221 354215 2043.29 694 674 173.0
D 2 165 313319 1806.93 694 674 173.0
D 12 128 133639 768.47 694 674 173.0

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