ASTROSAT CZTI

Data Quality Report

Orbit 44677

Creation date: 2024-06-27T23:05:12.534598
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_072T01_9000006008_44677cztM0_level2.fits modeM0/AS1A13_072T01_9000006008_44677cztM0_level2_quad_clean.evt
Size (bytes)427,919,040110,145,600
Size408.1 MB 105.0 MB
Events in quadrant A4,812,840736,585
Events in quadrant B3,111,040778,257
Events in quadrant C2,846,079738,992
Events in quadrant D4,576,735638,623

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0196412
B0136172
C0130742
D0181672

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0150
C0150
D0150

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63511241.952448%
B6351520.818769%
C6351130.204692%
D63513285.164541%

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 7591 6352 16 16 0.21% 0.25%
B 7591 6352 16 16 0.21% 0.25%
C 7591 6352 1 1 0.01% 0.02%
D 7591 6352 223 223 2.94% 3.51%

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 1948453 13150.9 718 705 148.1
A 13 248 55776 371.83 718 705 148.1
A 0 243 15652 100.92 718 705 148.1
B 5 255 124271 878.69 726 705 140.6
B 0 219 24997 172.74 726 705 140.6
B 0 183 21144 145.34 726 705 140.6
C 2 14 25103 145.89 712 716 167.2
C 14 254 23813 138.18 712 716 167.2
C 3 233 13405 75.91 712 716 167.2
D 1 52 854667 4983.69 687 666 171.4
D 13 249 284682 1657.43 687 666 171.4
D 2 249 280852 1635.08 687 666 171.4

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