parameter data aresimilarly nominally available via the ISTP CDHF(and the CELIASproton monitor solar wind parameters

are available more in close to real time via a team Web page). A catalog of all observations is searchable via a Web form. Data

more than a year old are nominally open to the public,and more recentdata are available with the PI's approval.

The SOHO archiveThe SOHO archive is distributed: MDI high-rate data are stored in an archive at the PI institute because

of volume (the data in factare never flowed to the EOF), the LASCO archive islikewise maintained at NRL (with copies

ateach of three European Co-I institutes) until a finalcalibration hasbeen achieved,and all other PI data are nominally

served by the SOHO archive atthe Solar Data Analysis Center (SDAC) atNASA Goddard. Thegoalis that allSOHO data,

exceptMDI high rate data,be archived and catalogued atGSFC. A copy of the SOHO archiveis maintained in France

(MEDOC/CNES), the UK (RAL),and Italy (U. Torino).

The SOHO online catalogData and catalog entriesfromCDS, SUMER, EIT, and UVCS are currently being routinely

deposited in thisarchive. The Web-searchable,RDBMS- based catalog wasdesigned to allow asa final step (afterpoint-and-

click identification of relevantdata sets) the download of the desired data,or atleastthe generation of a tape production

request. Currently, the authentication interface for obtaining data within the proprietary period is still under development.

(The PI's provide the SOHO Data Coordinator with a set ofusers and permissions: for example, a Guest Investigator will

have access to data obtained for her/his programuntil the end of the proprietary program, or a publication has resulted from

the GI work.)

Due to the large volume of MDI high rate data,all of those data are served on by a user friendly systemat Stanford (cf.

http:/

/soi.stanford.edu/sssc/export_cams/cam_page.html, which islinked to the MDI home page and thus accessible fromthe

SOHO Web pages). The LASCO teamhave elected to maintain a separate database of their imagesuntil they are satisfied

with the calibration, buttheir catalog data and browseversionsof the imagesareavailable via the Web aswell.

Access to the SOHO main catalog and data are available via the SOHO homepage: http://sohowww.nascom.nasa.gov/.

SOHO-related publicationsand presentationsAlthough it is very early in the life-cycle of even the nominalmission for an

accurate assessmentof SOHO's impactby counting publications, a rough breakdown isavailable in the following Table.

SOHO Publications and Presentations

1996 - 1997 April

Type

1996

1997

Total

Journal

20

78

98

Invited Talks

23

12

35

Conf.Proceedings

16

39

55

Oral& posters

Other

9

4

13

121

133

254

Improved public data accessin a SOHO Solar Maximum Science missionThe MDI-SOIand EIT PI's have announced their

intention to make alldata from a SOHO SolarMaximum Sciencepublic as soon as the data are reformatted into scientifically

useful formats. The UVCS PI has announced his intention to make all synoptic data (~60% ofUVCS data) available on a daily

basis.The other PI's have announced their intention to release a "variability data set" to the public that will enable researchers

to measure the nature of solar variability from solar minimum through solar maximum in a range of parameters that characterize

the Sun and heliosphere from the deep interior to just upstream of the interaction with the earth's magnetosphere. The PI teams

have all agreed on a preliminary set of basic measurements that form the variability data base. In the next few months the exact

setofobservationswillbedetermined.Thisdatabasewillbeavailabletoallscientistsin nearrealtimetogetherwithany

necessary calibration data needed to interpret the measurements fully. In the case of the helioseismology instruments, frequen-