ASTROSAT CZTI

Data Quality Report

Orbit 47088

Creation date: 2024-06-27T23:31:36.046862
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_003T01_9000006298_47088cztM0_level2.fits modeM0/AS1C09_003T01_9000006298_47088cztM0_level2_quad_clean.evt
Size (bytes)520,813,440116,452,800
Size496.7 MB 111.1 MB
Events in quadrant A7,149,275787,688
Events in quadrant B4,369,254786,652
Events in quadrant C3,309,528745,285
Events in quadrant D3,882,879696,058

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0265660
B0179400
C0152930
D0167790

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A73261421.938302%
B73251912.607509%
C7326440.600601%
D7326961.310401%

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 7326 7326 1 1 0.01% 0.01%
B 7325 7325 95 95 1.30% 1.30%
C 7326 7326 28 28 0.38% 0.38%
D 7326 7326 87 87 1.19% 1.19%

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 3940209 23182.2 814 796 169.9
A 13 254 13803 76.54 814 796 169.9
A 14 248 12245 67.37 814 796 169.9
B 3 112 402467 2550.49 802 776 157.5
B 5 172 320613 2030.77 802 776 157.5
B 5 255 159889 1010.27 802 776 157.5
C 14 254 138454 745.67 786 791 184.6
C 12 249 35708 189.13 786 791 184.6
C 12 2 23246 121.63 786 791 184.6
D 1 47 229557 1149.84 793 765 199.0
D 1 52 197946 990.97 793 765 199.0
D 2 249 105296 525.34 793 765 199.0

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