ASTROSAT CZTI

Data Quality Report

Orbit 47799

Creation date: 2024-07-30T21:34:36.474795
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_037T05_9000006352_47799cztM0_level2.fits modeM0/AS1A13_037T05_9000006352_47799cztM0_level2_quad_clean.evt
Size (bytes)495,288,000117,046,080
Size472.3 MB 111.6 MB
Events in quadrant A7,185,357781,277
Events in quadrant B3,516,904797,994
Events in quadrant C3,491,364765,271
Events in quadrant D3,582,389698,506

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0269450
B0154926
C0156280
D0159080

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A71941381.918265%
B7193951.320728%
C7193640.889754%
D7193560.778535%

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 7194 7194 4 4 0.06% 0.06%
B 7193 7193 63 63 0.88% 0.88%
C 7193 7193 60 60 0.83% 0.83%
D 7193 7193 56 56 0.78% 0.78%

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 3893733 22976.6 811 794 169.4
A 14 235 110294 646.28 811 794 169.4
A 13 248 39599 229.03 811 794 169.4
B 5 32 224227 1411.05 805 781 158.4
B 0 200 26412 161.86 805 781 158.4
B 7 221 22070 134.44 805 781 158.4
C 12 2 357124 1912.47 791 794 186.3
C 14 254 40100 210.96 791 794 186.3
C 1 3 13133 66.23 791 794 186.3
D 2 37 177396 878.74 795 771 201.0
D 2 249 122869 607.46 795 771 201.0
D 7 67 68520 337.06 795 771 201.0

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