ASTROSAT CZTI

Data Quality Report

Orbit 45863

Creation date: 2024-06-27T23:17:02.654760
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/AS1T05_187T01_9000006132_45863cztM0_level2.fits modeM0/AS1T05_187T01_9000006132_45863cztM0_level2_quad_clean.evt
Size (bytes)538,960,32099,849,600
Size514.0 MB 95.2 MB
Events in quadrant A5,353,281691,993
Events in quadrant B7,966,962578,053
Events in quadrant C2,786,937691,305
Events in quadrant D3,356,649623,618

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0203171
B0281851
C0128112
D0143521

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62761031.641173%
B6276148523.661568%
C6276140.223072%
D6276651.035692%

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 7336 6277 17 17 0.23% 0.27%
B 7336 6276 981 981 13.37% 15.63%
C 7336 6277 1 1 0.01% 0.02%
D 7336 6277 42 42 0.57% 0.67%

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 2626260 18095.99 698 683 145.1
A 0 243 12752 83.18 698 683 145.1
A 13 254 10562 68.09 698 683 145.1
B 3 112 4974961 39671.87 639 619 125.4
B 4 171 313400 2494.52 639 619 125.4
B 0 183 39760 312.16 639 619 125.4
C 12 2 26113 153.9 702 706 165.1
C 9 237 12723 72.79 702 706 165.1
C 12 249 10050 56.6 702 706 165.1
D 1 52 217661 1230.15 689 667 176.4
D 2 249 90668 510.22 689 667 176.4
D 12 2 76454 429.64 689 667 176.4

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