ASTROSAT CZTI

Data Quality Report

Orbit 47491

Creation date: 2024-07-10T02:28:08.949043
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_089T01_9000006330_47491cztM0_level2.fits modeM0/AS1A13_089T01_9000006330_47491cztM0_level2_quad_clean.evt
Size (bytes)479,214,720107,493,120
Size457.0 MB 102.5 MB
Events in quadrant A7,173,758701,223
Events in quadrant B3,778,574744,466
Events in quadrant C3,033,269712,495
Events in quadrant D3,252,618646,132

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0160
C0160
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0257472
B0155922
C0136552
D0143472

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64553224.988381%
B64551221.890008%
C6455370.573199%
D64551051.626646%

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 7605 6456 154 154 2.02% 2.39%
B 7605 6456 41 41 0.54% 0.64%
C 7605 6456 32 32 0.42% 0.50%
D 7605 6456 74 74 0.97% 1.15%

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 4019160 26776.55 723 709 150.1
A 9 191 275609 1831.77 723 709 150.1
A 15 235 65802 433.74 723 709 150.1
B 0 200 518224 3571.02 732 709 144.9
B 5 32 75948 519.17 732 709 144.9
B 0 186 72616 496.18 732 709 144.9
C 12 2 154575 898.76 723 726 171.2
C 3 233 33889 193.73 723 726 171.2
C 4 0 9067 48.72 723 726 171.2
D 13 23 237552 1320.78 714 692 179.3
D 2 249 61680 340.08 714 692 179.3
D 11 192 42408 232.62 714 692 179.3

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