ASTROSAT CZTI

Data Quality Report

Orbit 45998

Creation date: 2024-06-27T23:18:35.907110
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_017T01_9000006148_45998cztM0_level2.fits modeM0/AS1A13_017T01_9000006148_45998cztM0_level2_quad_clean.evt
Size (bytes)550,019,520115,632,000
Size524.5 MB 110.3 MB
Events in quadrant A6,142,702765,258
Events in quadrant B6,101,717779,605
Events in quadrant C3,068,756782,945
Events in quadrant D4,495,173677,716

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230583
B0231505
C0146133
D0186873

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A71142153.022210%
B71134997.015324%
C7113280.393645%
D71134426.213974%

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 9229 7115 7 7 0.08% 0.10%
B 9228 7115 352 352 3.81% 4.95%
C 9228 7116 0 0 0.00% 0.00%
D 9228 7115 416 416 4.51% 5.85%

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 3070306 18686.48 792 775 164.3
A 13 254 9448 52.8 792 775 164.3
A 3 137 9166 51.08 792 775 164.3
B 3 112 2945528 18756.84 788 764 157.0
B 12 111 19882 121.77 788 764 157.0
B 11 111 18514 113.06 788 764 157.0
C 10 20 5532 25.78 785 790 183.9
C 13 61 5119 23.54 785 790 183.9
C 3 233 3697 15.81 785 790 183.9
D 12 2 886538 4674.34 761 737 189.5
D 1 52 476171 2508.85 761 737 189.5
D 2 249 87671 458.75 761 737 189.5

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