Talk by SC (ESA)

- Concerns about model and data interpretability

- Services (require IT experts)

- Complex interfaces between ESA models/services

- Need to standardize models; description, model outputs, data types

- Networks of models concept: model specification

- Networks of models -  General requirements

- Example: Easy, robust interoperability of SPENVIS, ESPREM, ODI

 

DHC: A lot of work presented involves metadata. Standardize metadata and proper use of them.

PoB: How do you tie this requirements to user needs? To achieve the standardization goal you need to demonstrate existing use cases/ user needs.

DHC: HAPI standards are under development

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Talk by Insoo Jun (JPL/NASA): Radiation Assessment for JPL Missions Models and Tools

- SAPPHIRE: to be considered for use in the futre

- Issues appear some cases with AP9/AE9. 

- GIRE4 with Juno data; noisy with background

- Dose-depth curve is convinient & fast but an estimation

- Transport Codes are needed which model actual particle interactions

- Shielding Design Lessons Learned: Multiple iterations, comprehensive physics package

- Presentation of charging tools (NUMIT for IC, NASCAP-2K for SC)

 

Yuri: Zoo of different talks/tools. Can we validate, cross-compare EU/ESA vs US/NASA tools?

JI:- Issues with IPR. We try to make open source. It is a case by case issue.

Yuri: Comparisons with DICTAT?

JI: Yes. Differences do exist.

Yuri: Write a paper on charging comparing charging tools?

JI: Nice idea

PJ: Do you use Jason radiation data?

JI: Yes, for comparisons with IRENE we have used Jason-2

PJ: Do you have resources?

JI: Yes.

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RH talk on  "Satellite Charging at Geostationary Orbit"

- Galaxy IV case

- Why did not all s/c suffer anomalies?

- Daily electron fluence as a key factor

- Resistivity (RC) defines the time constant - calculation results for RC may differ dramatically (non contact methods)

- Recurrent fast SW streams: max charge accumulation occur after peak daily flux & last for days

- Need to: update materials/Spenvis, incorporate effects of different time constants

 

[D. Rodgers]: Information on materials on SPENVIS do exist. Proper use by users required

[HE]:

[DR]: 

[JI]: Temperature effects are also important

[PoB]: Discharges occur many times/frequently per day. They do not lead necessarily/usually to damages/impacts. We miss something to understand what actually leads to anomalies when a discharge occurs. Different behavior from vehicle to vehicle. Scatha case.

[Simon]: Have you considered Temperature effects? No

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AL talk on  "Evaluation of Solar Cell Radiation Damage during Electric Orbit Raising"

-  2%-5% variability in doses depending on EOR apogee (two cases studied)

-  2%-5% variability in doses depending on quiet/active models

- Recommendations: a)

 

PoB: You build your study based on power loss. A different approach would be to ...

PJ: What is the actual width of cover glass? 

PJ: Future EOR will terminate on MEO? 

 

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Talk by MD: The ESA SSA Space Weather Space Radiation Expert Service Centre

PoB: Requirements for Operational tools/services?

MD: Data stream requirements

Yuri S: Transition issues from ACE to DISCOVR.

IS: Is there consensus on the data type format and APIs between ESA/ESTEC and SSA program

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Talk by AV: FASTRAD & OMERE

- Feedback from partners & from users.

- Involve industry from earlier stages in the model development

 

PoB: With AE9/AP9, we asked industry in advance. We developed model accordingly.

AV: It is important HOW to present results to the users

PoB: User interface can by provided by UI tools (e.g. SPENVIS, OMERE)

HE & PoB: There exist different user cases.