ASTROSAT CZTI

Data Quality Report

Orbit 45275

Creation date: 2024-06-27T23:11:50.150095
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_024T03_9000006064_45275cztM0_level2.fits modeM0/AS1A13_024T03_9000006064_45275cztM0_level2_quad_clean.evt
Size (bytes)510,822,720112,112,640
Size487.2 MB 106.9 MB
Events in quadrant A5,579,626756,199
Events in quadrant B3,658,437781,230
Events in quadrant C3,345,283741,158
Events in quadrant D5,780,570626,149

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0215870
B0157840
C0151730
D0220696

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7027881.252313%
B70271311.864238%
C7028570.811042%
D70266489.222886%

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 7027 7027 15 15 0.21% 0.21%
B 7027 7027 53 53 0.75% 0.75%
C 7028 7028 48 48 0.68% 0.68%
D 7028 7027 451 451 6.42% 6.42%

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 2424707 14613.77 788 770 165.9
A 13 248 50845 301.9 788 770 165.9
A 7 3 29860 175.38 788 770 165.9
B 4 171 410261 2585.92 785 758 158.4
B 10 3 57377 357.54 785 758 158.4
B 12 111 19809 120.3 785 758 158.4
C 14 254 242693 1336.91 768 773 181.0
C 12 2 81058 443.67 768 773 181.0
C 3 233 16240 85.47 768 773 181.0
D 12 33 1037885 5465.33 744 720 189.8
D 9 49 560029 2947.28 744 720 189.8
D 11 241 366679 1928.42 744 720 189.8

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