ASTROSAT CZTI

Data Quality Report

Orbit 46470

Creation date: 2024-06-27T23:23:32.480987
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_203T01_9000006214_46470cztM0_level2.fits modeM0/AS1T05_203T01_9000006214_46470cztM0_level2_quad_clean.evt
Size (bytes)471,110,400106,341,120
Size449.3 MB 101.4 MB
Events in quadrant A6,668,367695,483
Events in quadrant B3,150,349742,890
Events in quadrant C2,885,070695,677
Events in quadrant D4,214,176617,371

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240902
B0141431
C0135701
D0173691

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67112884.291462%
B6711380.566235%
C671270.104291%
D67123144.678188%

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 7721 6712 206 206 2.67% 3.07%
B 7721 6712 17 17 0.22% 0.25%
C 7722 6713 3 3 0.04% 0.04%
D 7722 6713 271 271 3.51% 4.04%

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 3130119 20699.31 723 708 151.2
A 15 235 439148 2900.04 723 708 151.2
A 0 247 123498 812.19 723 708 151.2
B 5 29 155679 1062.09 736 713 145.9
B 0 245 28488 190.36 736 713 145.9
B 0 190 28069 187.49 736 713 145.9
C 12 2 38453 221.78 719 723 170.1
C 3 233 24998 142.69 719 723 170.1
C 9 54 11901 65.71 719 723 170.1
D 2 249 485282 2752.79 698 677 176.0
D 13 249 472267 2678.86 698 677 176.0
D 13 138 248409 1407.24 698 677 176.0

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