ASTROSAT CZTI

Data Quality Report

Orbit 45738

Creation date: 2024-06-27T23:15:35.769224
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_183T01_9000006124_45738cztM0_level2.fits modeM0/AS1T05_183T01_9000006124_45738cztM0_level2_quad_clean.evt
Size (bytes)544,789,440112,613,760
Size519.6 MB 107.4 MB
Events in quadrant A6,497,423739,167
Events in quadrant B5,057,418760,663
Events in quadrant C3,370,480758,435
Events in quadrant D4,708,684672,566

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0238831
B0195431
C0149391
D0186601

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A68702743.988355%
B68712623.813128%
C6871771.120652%
D68713455.021103%

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 7500 6871 27 27 0.36% 0.39%
B 7501 6872 132 132 1.76% 1.92%
C 7501 6872 39 39 0.52% 0.57%
D 7501 6872 312 312 4.16% 4.54%

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 3098505 18583.03 791 773 166.7
A 2 79 115195 686.41 791 773 166.7
A 13 248 60777 359.96 791 773 166.7
B 3 112 1065613 6849.2 786 764 155.5
B 5 255 328800 2109.96 786 764 155.5
B 4 171 197199 1263.49 786 764 155.5
C 14 254 215025 1165.47 778 785 183.8
C 14 96 32814 174.24 778 785 183.8
C 2 14 29405 155.69 778 785 183.8
D 1 52 889163 4506.81 771 749 197.1
D 10 253 364051 1842.98 771 749 197.1
D 13 249 202924 1025.61 771 749 197.1

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