STEREO/IMPACT Data Report Peter Schroeder UC Berkeley as of July 26, 2010

IMPACT Instrument Status SWEA temperature testing was done in 2009 to determine effect on the core solar wind electron spectrum (which shows degradation that appeared during commissioning phase and has persisted). No effect found. Boom suite burst mode was altered to obtain longer duration bursts by eliminating STE burst, in a campaign for B. Lauvraud et al. (CESR) MAG offsets slowly drifting but manageable SEP instruments (SEPT, LET, SIT, HET) operating nominally

Current IMPACT Level 1 Data Holdings Instrument 1st Date (A) 1st Date (B) Last Date MAG 2006 Nov 2 2010 Feb 28 SWEA 2006 Oct 28 2010 May 31 STE 2009 Apr 15 (new product in testing) LET 2006 Nov 14 2006 Nov 13 2010 Apr 30 SEPT 2006 Dec 12 2010 Feb 28 (testing patch) SIT 2007 Mar 15 HET 1 minute ascii data through 2010 Apr 30 (note: command log now online at stereo.ssl.berkeley.edu)

Now Available New SWEA PADs and “halo moments” available in ascii and cdf HET 1 min Level 2 data in ascii, soon cdf “Level 2” merged Key Parameters (1 min) including MAG, PLASTIC Moments in ascii through UCLA “Level 3” Event lists (Shocks, SIRs, ICMEs…) at UCLA SEP suite “hub” at Caltech provides more ascii data (LET, HET, and SIT) Improved boom browse plots with added SWEA electron heat flux pitch angle spectrograms, plus SEP browse plots. Will soon add burst mode intervals to browse plots as well. CDAW-served IMPACT MAG, SWEA, STE, SEPT, SIT, LET Level 1 files

Recent Progress Processing Website We are keeping reasonably up-to-date on Level 1 data release, however currently working some issues with SEPT, STE and HET (see next slides). Automation of many basic tasks including routine summary plot and data ingestion from UCLA and other sources has been completed. Website Improvements continue at both Berkeley and UCLA. More complete browse plots are coming online at Berkeley. UCLA is making progress on integrating more data for Level 2. 5

Work in Progress New STE Level 1 code – status testing Finalization of HET Level 1 code – status integrating into data stream at UCB Providing a better framework for the SWEA PAD and MOM cdfs (currently cdfs using the Wind model), however ascii files are very well documented SEPT patch to Level 1 code – status testing New SEPT calibrations – status awaiting data from Co-I’s

A Note from Janet Mark Weidenbeck has recently asked GONG people to make available the solar coords of the Earth and STEREO-connected field lines. You might ask if there is a need for other modeling or ancillary solar data products useful to SEP analyses.

Overview: Several Points of Entry STEREO Science Center archives all primary instrument data. It also provides the real- time space weather beacon data, images and plots: http://stereo-ssc.nascom.nasa.gov/ PI sites provide access to primary instrument data, some higher order data products, plots/browsers and lots of associated information about the instruments and the data : IMPACT: http://sprg.ssl.berkeley.edu/impact/ PLASTIC: http://stereo.sr.unh.edu/ S/WAVES: http://swaves.gsfc.nasa.gov/ Co-I sites provide additional tools, browsers and data in different formats (for example, ASCII): UCLA: MAG data, “Level 2” (merged MAG and PLASTIC), “Level 3” (event lists): http://www- ssc.igpp.ucla.edu/ssc/stereo/ Caltech: SEP suite browsers and data: http://www.srl.caltech.edu/STEREO/index.html Toulouse: SWEA PAD and (limited) moments data: http://stereo.cesr.fr/ Kiel: SEPT browser: http://www2.physik.uni-kiel.de/stereo/browseplots/ CDAWeb serves a great deal of data and more is on the way: http://cdaweb.gsfc.nasa.gov/ The Virtual Heliospheric Observatory (VHO) likewise serves some STEREO data and more is also in the pipeline: http://vho.nasa.gov/

STEREO Science Center: http://stereo-ssc.nascom.nasa.gov/

IMPACT Investigation Site: http://sprg.ssl.berkeley.edu/impact/

PLASTIC Investigation Site: http://stereo.sr.unh.edu/

S/WAVES Investigation Site: http://swaves.gsfc.nasa.gov/

IMPACT Server at UCLA http://www-ssc.igpp.ucla.edu/ssc/stereo/ STEREO IMPACT L1 Magnetometer Data (1 Hz, 8 Hz, 32 Hz) Earth orbit in GSM (Nov 7, 2006 – Oct 31, 2008) Heliocentric orbit in RTN or spacecraft coordinates (Nov 7, 2006 – Mar 31, 2010) Correlative: Wind/ACE mag data in RTN (1m, 1s) Plots and ASCII data L2 Merged Magnetometer and PLASTIC Plasma Data (1 hour, 10 min, 1 min) STA (Feb 15, 2007 – Feb 28, 2010) and STB (Mar 1, 2007-Feb 28, 2010) Parameters: Vp, Np, Tp, entropy, beta, total pressure, Br, Bt, Bn, B, cone angle, clock angle, Br/B, Bt/B, Bn/B, spacecraft location L3 Event Lists (ICMEs, CIRs, Shocks) Updated to Oct 31, 2009 ICME parameters: start and stop time, maxima of total pressure, magnetic field, and solar wind speed, declining speed, group, and comments SIR parameters: start and stop time, interface time, maxima of total pressure, magnetic field, proton number density, minimum and maximum solar wind speed Shock parameters (using 8-Hz data): time, field ratio, shock normal angle, beta, Mach number, availability of 32-Hz data, forward/reverse shock

IMPACT/SEP Suite Site: http://www.srl.caltech.edu/STEREO/

IMPACT/SEPT site@Kiel: http://www2. physik. uni-kiel

IMPACT/SWEA@Toulouse: http://stereo.cesr.fr/

CDAWeb Serving IMPACT/SEP Data

PLASTIC Status Report Toni Galvin, Kristin Simunac, Mark Popecki, Berndt Klecker, Andrea Opitz and the PLASTIC Team Kiel SEPT Meeting July 26, 2010 28

Updated Status for PLA Now also generating velocity components for STB (2007 completed, catching up on other years). Level 3 products at SSC include suprathermal event lists (A,B) and suprathermal He+ (A) through 2009 Proton files at SSC available up through May 2010. While waiting for s/c data to create final version, now place a “prelim” file under the ascii folder (but don’t create a prelim CDF format). Iron charge state distributions at SSC available up through March 2010. (Being updated now to bring data up through June). New iron product currently being processed for SSC (includes kinetic properties and abundances). Working on higher time resolution (1-10 min) alpha data product. Working on improved oxygen product.

Some Details Currently, alpha moments at 1 to 6 hour resolution. Toni Galvin (with help from her student S. Wang and post-doc K. Simunac) is working up a 1-minute resolution alpha data set. Expect STA to be done in a month or two with STB soon after. Josh Barry at UNH is creating a suprathermal event list available here: http://fiji.sr.unh.edu/Suprathermals

PLASTIC Instrument Status: Nominal MCP are routinely tracked, and as gain changes, commanded to higher bias (both A and B). Microtel is ready to proceed with generating new software for the reduced telemetry modes, pending proposal. Current APL estimate is that the lowest s/c rate for A until 2015 is about 80 kbs. 31

Proton Data Recovery Effort Density Bulk Speed N/S Angle Temp-erature Density Bulk Speed N/S Angle Temp-erature ST-A Jan - Dec 2008 v6 ST-A Jan - Dec 2008 v7 The automated validation procedure in processing version 6 was very strict, resulting in the loss of data that by human inspection appeared to be o.k. The revised version has less stringent standards, so there is now very little loss, typically 2% or less. The trade-off is that the human validation requires more time to manually inspect all suspected outliers. 32

Processing Steps Incorporation of MCP efficiency trends Daily recovery of L0 and immediate processing for browse plots L0 data gap recovery Spacecraft ephemeris – needed to correct aberration Incorporation of MCP efficiency trends Manual validation The monthly updated products include the incorporation of spacecraft trajectory information (needed to derive components in RTN and HERTN coordinates) and monthly updates to the detector efficiency curves. Validated Level 2 solar wind proton products currently available on the UNH site as ASCII files include 1-minute (full resolution), 10-minute and hourly averages of solar wind bulk parameters. These files contain merged spacecraft location (Carrington Rotation Number, HEE an, HEEQ, and HCI coordinates) and attitude information.

*http://fiji.sr.unh.edu/ Level 2 Proton Data (A, B) through 01/2010 Available ascii/excel Files Level 2 Proton Data (A, B) through 01/2010 Daily Suprathermal He+ Relative Fluxes (A) through 2008 Alphas bulk parameters (β version) Carbon 5+/4+ Ratio Oxygen bulk parameters Oxygen 7+/6+ Ratio Iron <Q> *The computer is named fiji because of a certain former UNH graduate student’s wish to live and work someplace warm. 34