ASTROSAT CZTI

Data Quality Report

Orbit 04646

Creation date: 2024-06-27T14:45:02.460323
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/AS1G05_218T03_9000000582_04646cztM0_level2.evt modeM0/AS1G05_218T03_9000000582_04646cztM0_level2_quad_clean.evt
Size (bytes)446,100,48077,837,760
Size425.4 MB 74.2 MB
Events in quadrant A2,883,610487,536
Events in quadrant B3,060,006502,489
Events in quadrant C2,897,545480,389
Events in quadrant D4,245,161451,410

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0230

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0129183
B0132082
C0130522
D0169932

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6229210.337133%
B6229330.529780%
C6229360.577942%
D62293285.265693%

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 7559 6230 2 2 0.03% 0.03%
B 7559 6230 4 4 0.05% 0.06%
C 7559 6230 7 7 0.09% 0.11%
D 7559 6230 242 242 3.20% 3.88%

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 14 111 32073 212.15 734 719 147.8
A 15 234 16780 108.67 734 719 147.8
A 0 226 7114 43.27 734 719 147.8
B 14 167 74469 521.86 752 736 141.3
B 15 204 26506 182.39 752 736 141.3
B 12 111 12770 85.17 752 736 141.3
C 1 16 65594 386.2 721 725 168.0
C 7 237 10428 57.77 721 725 168.0
C 13 61 5768 30.02 721 725 168.0
D 13 235 1034325 6238.77 690 669 165.7
D 8 112 410307 2472.43 690 669 165.7
D 2 234 86142 515.88 690 669 165.7

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