Van Allen Probes SWG Telecon 030416 v1rbspgway.jhuapl.edu/sites/default/files/20160304/Van...Space 1...
Transcript of Van Allen Probes SWG Telecon 030416 v1rbspgway.jhuapl.edu/sites/default/files/20160304/Van...Space 1...
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Van Allen Probes SWG Telecon 04 March 2016
• Project news
• In-Person SWG Meeting & Instrument Team Meetings April 12-15 at APL
• ULF noise reduction at the E-W precession maneuvers (Tom Sotirelis)
• FIREBIRD-II Mission update (Harlan Spence)
• Inner zone electron radial diffusion coefficients - An update with Van Allen Probes MagEIS data (Paul O’Brien)
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SWG Telecon (Van Allen Probes)Host: Aleksandr Ukhorskiy When it's time, start your meeting from here:https://apl-webex.jhuapl.edu/orion/joinmeeting.do?ED=OM2AR-ZWm41gDUOY2BhaFg==&PW=BgAAAGl2Seok-xOrdxZNIX7ZfB_CMrCMx-1QvO7RG7zNaN0sMsxa1bHJ4f1H_AVLKtwSx6sWGLdx2d6OlJpOYauo-C98 When: Friday, March 4, 2016, 3:00 pm (1 hr), Eastern Standard Time (New York, GMT-05:00). Access Information Meeting Number:992 620 677 Password:RBSP Host Key:870350 (Use this key during the meeting if you ever need to reclaim the host role.) Audio Connection (443)778-1000 (Baltimore, MD) 8-1000 (Internal) (844)275-9323 (Toll Free) (240)228-1000 (Washington, DC)
Access Code: 992 620 677
Dial-in Information (04 March 2016 3:00 EST)
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Gateway News EFW L3 Data
http://rbspgway.jhuapl.edu/rPlotTime?smr.TWm9In
Takahashi et al. (2015) 10.1002/2015JA021780
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In-Person SWG & Instrument Team Meeting
April 12 Instrument Team meetings (TBD) April 13-15 SWG meeting (200-E100) Registration via Gateway
http://www.jhuapl.edu/aboutapl/visitor/default.asp
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Registration for the SWG Meeting
To access the registration page you need to first log in. If you are not a registered user on the Gateway please register (takes only a couple of minutes)
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Registration for the SWG Meeting
You will not be able to attend the meeting without registration (unless you have a JHU/APL badge). To register click on the following link:
Or go directly to: http://rbspgway.jhuapl.edu/apr_2016_mtg_registration
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Registration for the SWG Meeting
Registration must be complete by the deadline, April 4, required by APL visitor control
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In-Person SWG Tentative Themes & Sessions
• Science of close approaches (Oleksiy Agapitov [email protected], John Wygant [email protected])
• Coordination with MMS and THEMIS 1. Magnetopause losses (MMS 1A/B campaigns) (David Sibeck
[email protected] , I. Cohen [email protected]) 2. Mesoscale injections (MMS 1X campaign) (Drew Turner
[email protected], Alison Jaynes [email protected], M. Gkioulidou [email protected])
• Coordination with low-altitude measurements for understanding radiation belt atmospheric losses (Harlan Spence [email protected], Tom Sotirelis [email protected])
• New science of the inner zone (J. Fennell [email protected], G. Reeves [email protected], P. O’Brien [email protected])
• What can we learn about the near-Earth energetic particle processes from coordination with laboratory experiments? (C. Crabtree [email protected], Sasha Ukhorskiy [email protected])
• Coordination with ERG (Yoshi Miyoshi [email protected], TBD) • General contributions [5-10 min talks] (Tom Sotirelis [email protected])
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In-Person SWG
If you would like to get involved with organizing or contribute a talk to any of the sessions please contact session chairs directly and then submit the title of your talk via the Gateway (open for subm. in about a week)
If you would like to contribute a short 5-10 min presentation on a different topic in a general session - you will be able to submit the title of your talk via the Gateway (open for subm. in about a week)
Get involved or contribute a talk
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ULFNoiseandE-WPrecessionManeuvers• SpacecraftnutationexcitedbyE-Wprecessionmaneuvers,
causesULFnoiseintheEMFISISMAG
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Theamplitudeofthenutationdependssensitivelyonwhenthemaneuverends.
• ModelresultsbyUdayShankar• Theredarrowsindicatetheendofthemaneuverinthemodel• Endingthemaneuveratanodegreatlyreducestheresidualmotion
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ThreeManeuvers2015/09/30
2016/01/07
2016/01/28
Residualnutation
accidentallylarge
Residualnutation
accidentallysmall
Residualnutation
intentionallyminimized:
Success!
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ResultsandOutlook
• 2016/01/28maneuverwastruncatedby~8pulses,basedonthismodeling
• ULFnoisewassuccessfullyreduced• AllfutureE-Wmaneuverswillusethistechnique• WeplantotrymodelingoutthismotionforpastE-W
maneuvers• N-Smaneuvershavebeendiscontinued• N-Smaneuversexcitedifferentmodes,andwerelessfrequent,
sowearenotplanningtotrymodelingtheseout