ASTROSAT CZTI

Data Quality Report

Orbit 47804

Creation date: 2024-07-31T08:06:49.847573
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_47804cztM0_level2.fits modeM0/AS1A13_037T05_9000006352_47804cztM0_level2_quad_clean.evt
Size (bytes)596,013,120102,646,080
Size568.4 MB 97.9 MB
Events in quadrant A7,046,320706,961
Events in quadrant B3,081,947750,638
Events in quadrant C2,989,660712,153
Events in quadrant D8,421,044466,793

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0253672
B0138662
C0139772
D0298222

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67503154.666667%
B6750420.622222%
C6750280.414815%
D6750190928.281481%

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 8490 6752 130 130 1.53% 1.93%
B 8490 6752 1 1 0.01% 0.01%
C 8490 6752 8 8 0.09% 0.12%
D 8490 6751 1777 1777 20.93% 26.32%

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 3959452 25651.89 737 722 154.3
A 0 31 180565 1165.35 737 722 154.3
A 13 248 32976 209.0 737 722 154.3
B 0 200 67326 450.57 749 725 147.8
B 12 111 19125 124.48 749 725 147.8
B 11 111 17550 113.82 749 725 147.8
C 12 2 86564 492.94 733 736 174.1
C 1 3 23871 132.87 733 736 174.1
C 14 254 16059 88.01 733 736 174.1
D 12 2 5905878 38072.03 610 588 155.1
D 7 67 33476 212.03 610 588 155.1
D 2 37 29875 188.82 610 588 155.1

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