ASTROSAT CZTI

Data Quality Report

Orbit 47692

Creation date: 2024-07-23T15:33:57.926102
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_082T01_9000006342_47692cztM0_level2.fits modeM0/AS1A13_082T01_9000006342_47692cztM0_level2_quad_clean.evt
Size (bytes)435,038,400103,340,160
Size414.9 MB 98.6 MB
Events in quadrant A6,156,016685,638
Events in quadrant B3,033,224712,750
Events in quadrant C2,755,206684,467
Events in quadrant D3,690,367624,883

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0229771
B0129601
C0124251
D0149301

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A60381913.163299%
B6039911.506872%
C6039420.695479%
D60391422.351383%

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 7203 6038 36 36 0.50% 0.60%
B 7204 6039 16 16 0.22% 0.26%
C 7204 6040 2 2 0.03% 0.03%
D 7204 6039 103 103 1.43% 1.71%

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 3281011 22175.81 708 693 147.9
A 9 191 132689 892.33 708 693 147.9
A 14 248 11850 75.42 708 693 147.9
B 0 200 227776 1643.93 704 684 138.1
B 12 111 17805 123.94 704 684 138.1
B 11 111 16706 115.98 704 684 138.1
C 14 254 34762 207.73 696 700 164.0
C 12 250 7367 40.66 696 700 164.0
C 13 61 4517 23.28 696 700 164.0
D 7 96 419339 2395.39 701 681 174.8
D 10 181 349534 1995.99 701 681 174.8
D 2 249 83327 472.87 701 681 174.8

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