RHESSI_data_analysis March 2017

rhessi_data_analysis@solar.physics.montana.edu

3 participants
3 discussions

RHESSI 16th / MinXSS 1st Workshop: Registration open!
by Amir Caspi 31 Mar '17

31 Mar '17

Dear solar X-ray colleagues, Registration is NOW OPEN for the RHESSI 16th Workshop, co-hosted with the MinXSS 1st Workshop! I invite and encourage you to attend this joint meeting. The workshop will be held at the University of Colorado in Boulder, CO, USA from June 19 to 24, 2017. The website is at https://rhessi16.boulder.swri.edu, and includes registration and abstract information, as well as logistical (travel, hotels, etc.) information. Registration and abstracts are due April 22. The registration fee of $325 includes the entire week of the workshop. The Welcome Reception, Banquet dinner, and all morning and afternoon coffee breaks are free to registered attendees. Companion tickets are available. Specially-priced room blocks are available at selected hotels until May 18. As with prior RHESSI workshops, the format will be a blend of plenaries at the beginning and end, with various topical working group sessions in between, covering a range of high-energy solar physics topics including acceleration and transport of electrons and ions, the solar atmospheric response to energy release (including thermal plasma), multi-wavelength observations (EUV, radio, etc.), and pertinent theory. There will also be sessions on next steps in RHESSI imaging; the MinXSS CubeSat status and data access; new results from MinXSS-1 on flare thermal emission and quiescent soft X-ray emission; and a discussion of future instrumentation. The final science program will be determined based on your contributed abstracts, so please submit a presentation and help guide the scientific goals of this event. Please feel free to contact me directly if you have any questions about the workshop. I look forward to seeing you all in Boulder in June! On behalf of the Local Organizing Committee, --- Amir, LOC chair amir(a)boulder.swri.edu +1-303-546-6351

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RHESSI software changes
by Tolbert, Kim 03 Mar '17

03 Mar '17

Dear RHESSI software users, On Friday, March 3, we put some new RHESSI data accumulation software online in the SSW hessi atest directory. For the most part, the changes should be transparent to almost every user. The main changes are * Since January 2014, electronic errors in the detectors moved some events to energies up to 100-150 keV higher than their actual energy. These events are now identified and removed. This effect was getting worse with time. If you found higher energy emission than expected, you should look again with this new software. * Livetime accumulations at very small time bins (<512 binary microseconds) were not being reported correctly. Fine time bins of that order are generally only necessary for real spatial structure on the order of a few arcseconds. If you were imaging sources far from the spin axis with Grid 1 this might have affected your results. * Accumulations across packet bunch boundaries were occasionally problematic. (The software can't process the full data request at once - it reads and processes groups or bunches of packets sequentially to accomplish that.) The effect was minor - an extremely short time interval of incorrect data at the boundary. Packet boundaries are now handled correctly. More detail is provided at this link https://hesperia.gsfc.nasa.gov/ssw/hessi/doc/software/changes/sw_3-mar-2017… (the full software change history is here: https://hesperia.gsfc.nasa.gov/ssw/hessi/doc/software/changes/sw_changes.ht…) Richard and Kim

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RHESSI Senior Review Proposal
by Dennis, Brian R. (GSFC-6710) 02 Mar '17

02 Mar '17

The RHESSI Senior Review Proposal submitted last week is now on line at the following location: https://hesperia.gsfc.nasa.gov/rhessi3/mission/documents/ Thanks to everybody who contributed to it. The presentation to the Senior Review Committee will be on Tuesday, April 11. Best wishes, Brian Dennis Brian R. Dennis Solar Physics Laboratory, Code 671 Goddard Space Flight Center Greenbelt, MD 20771 301-286-7983 brian.r.dennis(a)nasa.gov

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RHESSI_data_analysis March 2017