ASTROSAT CZTI

Data Quality Report

Orbit 47966

Creation date: 2024-08-11T03:08:04.444857
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_062T02_9000006384_47966cztM0_level2.fits modeM0/AS1A13_062T02_9000006384_47966cztM0_level2_quad_clean.evt
Size (bytes)445,357,440106,084,800
Size424.7 MB 101.2 MB
Events in quadrant A6,853,954681,368
Events in quadrant B3,088,881741,501
Events in quadrant C2,925,872704,739
Events in quadrant D3,125,328642,831

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0244682
B0135212
C0131742
D0138352

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63314296.776181%
B6330831.311216%
C6331520.821355%
D6331741.168852%

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 7481 6331 108 108 1.44% 1.71%
B 7480 6330 1 1 0.01% 0.02%
C 8486 6331 16 16 0.19% 0.25%
D 8486 6331 30 30 0.35% 0.47%

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 4045226 27077.09 722 708 149.4
A 7 3 14569 92.8 722 708 149.4
A 3 137 8269 50.62 722 708 149.4
B 0 200 114107 784.23 735 713 144.6
B 7 221 30249 204.27 735 713 144.6
B 0 198 23020 154.27 735 713 144.6
C 14 254 63737 371.21 722 726 169.7
C 12 2 41249 238.73 722 726 169.7
C 13 61 4863 24.37 722 726 169.7
D 2 249 127365 705.38 719 698 179.6
D 5 235 54164 297.74 719 698 179.6
D 5 32 43253 236.98 719 698 179.6

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