Deep Space Exploration Society

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Presentation transcript:

Deep Space Exploration Society Science Meeting 9-24-2018

Agenda Overview of 2018 Radio Astronomy Guide Overview of this weekends observations

Deep Space Exploration Society 2018 Radio Astronomy Guide Revision 2 Overview

September 22, 2018 Observation Trip

Observation Trip 9-22-18 Observers: Gary Agranat, Jay Wilson, Richard Russel Receiver: SpectraCyber with 1420 Mhz. Cavity Filter on 60-foot dish Pointing System: System 1 Special Thanks to DSES President Steve Plock for setting up for the observation team!

Dish Photos

SpectraCyber Data

Lots of Notes

Results

Target: 3C274 (Calibration Source: 203 JY) RA: 12h28m DEC: 12 39m File: 18 47 14 UTC 3

Target: NGC 5457 Galaxy RA: 14h03m DEC: 54° 39m File: 19 38 28 UTC 1

Target: Unknown RA: 14h51m23s DEC: 44° 40m File: 19 58 41 UTC 3

Target: Unknown RA: 14h57m DEC: 42°35m File: 20 03 19 UTC 2

Target: 3C286 (Calibration Source: 14 Target: 3C286 (Calibration Source: 14.68 JY) RA: 13h29m12s DEC: 31° 12m File: 20 24 46 UTC 6

Target: Centaurus A RA: 13h23m DEC: -41° 10m File: 20 40 50 UTC 1

Target: Virgo A RA: 12h29m DEC: 12° 28m File: 21 10 16 UTC 10

Target: Unknown RA: 14h51m DEC: -6° 21m File: 21 37 10 UTC 1

Target: Unknown RA: 14h59m DEC: -46° 20m File: 21 45 46 UTC 9

Scan Across Declination -28°45m (approximate) This crosses Milky Way and SAG A* RA: 15h15m RA: 15h30m RA: 15h45m RA: 16h00m RA: 16h15m RA: 16h30m RA: 16h45m RA: 17h00m

Scan Across Declination -28°45m (approximate) This crosses Milky Way and SAG A* RA: 17h15m RA: 17h30m RA: 17h45m RA: 18h00m RA: 18h15m RA: 18h30m RA: 18h45m RA: 19h00m

Scan Across Declination -28°45m (approximate) This crosses Milky Way and SAG A* RA: 19h15m RA: 19h30m RA: 19h45m RA: 20h00m

Source: Seasonal Star Chart : Hubbard Scientific 2007 7.5 7.5 8.0 6.0 7.0 6.0 5.7 6.6 9.5 10.0+ 10.0+ 10.0 9.6 8.5 8.6 7.5 8.5 6.0 6.0 5.5 Source: Seasonal Star Chart : Hubbard Scientific 2007

Galactic Rotation Rate Data Gal Lat Gal Long RA DEC AZ EL File: UTC 17h45m37s -28d56m10s 162 205 23 10 39: UTC 2 10 18h07m46s -20d17m24s 154 27 23 10 39: UTC 14 20 18h27m32s -11d29m19s 146 33 23 10 39: UTC 25 30 18h46m05s -02d36m33s 138.6 40.25 23 10 39: UTC 37 40 19h04m23s 06d17m14s 125.6 44.3 23 10 39: UTC 50

Galactic Rotation Rate Data GLAT: 0 GLONG: 0 GLAT: 0 GLONG: 10

Galactic Rotation Rate Data GLAT: 0 GLONG: 20 GLAT: 0 GLONG: 30

Galactic Rotation Rate Data GLAT: 0 GLONG: 40

Summary The raw data collected during the observation trip will be analyzed The calibration sources did not show any signal above the noise. This may indicate that the noise level is at least 203 JY which was the highest signal calibration source attempted. (3C274) The one galaxy (NGC5457) observation did not appear per the observation guide. A number of unknown signals were present that were not in the guide – these will be added and researched to determine their identification

Summary A drift scan across Milky Way through SAG A* appeared to be show the edges of the Milky Way and the approximate location of SAG A* Measurements were taken at different Galactic Longitudes to calculate the Galactic rotation rate. The Doppler shift of each point will be determined. The rotation rate is based on Doppler (km/second) and source location. The results will be calculated and briefed at next science meeting. This was an excellent observation trip!