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
________________________________________________________________________________
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.
_____________________________________________________________________
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
_____________________________________________________________________
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?
________________________________________________________
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
________________________________________________________
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.