ASTROSAT CZTI

Data Quality Report

Orbit 48007

Creation date: 2024-09-04T18:33:09.655430
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_218T01_9000006386_48007cztM0_level2.fits modeM0/AS1T05_218T01_9000006386_48007cztM0_level2_quad_clean.evt
Size (bytes)529,925,760100,563,840
Size505.4 MB 95.9 MB
Events in quadrant A8,623,060555,255
Events in quadrant B3,220,300715,140
Events in quadrant C3,036,872686,685
Events in quadrant D4,219,639623,956

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0303061
B0143421
C0141281
D0173481

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6648143021.510229%
B66491141.714544%
C6649650.977591%
D66481882.827918%

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 7508 6649 1133 1133 15.09% 17.04%
B 7509 6650 31 31 0.41% 0.47%
C 7509 6650 25 25 0.33% 0.38%
D 7508 6649 162 162 2.16% 2.44%

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 3917879 27579.43 674 658 142.0
A 0 31 2082044 14654.12 674 658 142.0
A 13 254 9617 63.08 674 658 142.0
B 5 32 104116 717.42 722 699 144.2
B 0 198 100753 694.09 722 699 144.2
B 0 200 88025 605.79 722 699 144.2
C 12 2 137944 817.28 708 713 167.9
C 14 254 108260 640.49 708 713 167.9
C 14 67 6951 37.15 708 713 167.9
D 2 37 1010314 5616.42 706 683 179.8
D 2 249 168328 932.58 706 683 179.8
D 11 192 44261 242.42 706 683 179.8

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