An Overview of the Space Physics Data Facility

An Overview of the Space Physics Data Facility (SPDF) for Vi. RBO Team Presented 8/31/2007 at GMU [ http: //spdf. gsfc. nasa. gov ] Page 1

SPDF Home Page - One-Stop for Services Data and Orbit Services Data Translation Services Web Services Models Support Pointers to Heliophysics Vx. Os CDF and Related Software Feedback Link and Announcements Mailing List Page 2

Extensive Multi-Mission Data and Services • CDAWeb includes current data from essentially all (non-solar) current heliophysics mission and experiments since 1990 s and some earlier - Functions include plots (gif/ps/pdf), lists, data subsets/supersets and file downloads, computed variables Data available via FTP, user and webservices application interfaces, OPe. NDAP Often add extensive metadata through concept of ”master” CDFs Webservices and CDAWeb Plus Java interface also support file level access and multi-dataset file retrievals for NSSDC’s currently online (NSSDC ftp site) archival data holdings • SSCWeb offers current/predicted multi-mission orbit data and comparison logic for coordinated science planning and retrospective analysis - Listings, displays, file downloads in many coordinate systems and by regions Extensive logic to identify s/c-s/c, s/c-region and s/c footpoint - ground station conjunctions Choice of internal/external field models for tracings TIPSOD 3 -D Orbit Animation Java client based on SSC Webservices (with zoom and field line tracing) Ongoing updates from projects, NORAD TLEs and other sources Port to a much faster server (shared with CDAWeb) in Fall 2007 • Host and maintain OMNI hourly and OMNI High-Res (1/5 minute) database of interplanetary parameters mapped to Earth at 1 AU (and OMNIWeb services) • Developed and maintain Common Data Format (CDF) - Core s/w library, IDL and Mat. Lab data access routines, CDAWLib library & CDFX program in IDL Data translation webservices and user i/f, s/w (CDF <-> XML, net. CDF, FITS, some HDF) Prototype Java native reader (from N. Lal) • Draft SPASE-XML description of. SPDF and online NSSDC data holdings - CDAWeb holdings to Physical Parameter level; no standard for services yet Page 3

Metrics • We capture system execution (request file/plot/listing) statistics • Survey JGR Space Physics and GRL for acknowledgements (via script) - In 2005 and 2006, ~20% of published JGR Space papers acknowledged SPDF Page 4

Select SPDF-Held Data Related to Vi. RBO • Data and orbit informationincluding - LANL 1989/1990/1991/1994/1997/2001/2002 (MPA, SPA <=1997) > Electron temperature in 2 energy bands (50 -225 ke. V, 315 -1500 ke. V) 
Proton temperature in 2 energy bands (50400 ke. V, 1. 2 -5. 0 Me. V) 
Partial electron densities in 2 energy bands (50 -225 ke. V, 315 -1500 ke. V) 
Partial proton densities in 2 energy bands (50 -400 ke. V, 1. 2 -5. 0 Me. V) 
Alpha flux (Helium) from ~0. 9 Me. V to ~1. 3 Mev 
Heavy Ion flux at ~5 Me. V to ~15 Me. V (includes carbon, nitrogen, and oxygen 
Electron flux in 2 energy bands (50 -225 ke. V, 315 -1500 ke. V) 
Proton flux in 2 energy bands (50 -400 ke. V, 1. 2 -5. 0 Me. V) - NOAA 5/6/7/8/10/12/14 (MEPED SEM) > Count Rates for 0 Deg. telescopes, 5 proton and 3 electron energy bands (counts_0 dg) 
 Count Rates for 81/83 Deg. telescopes, 5 proton and 3 electron energy bands (counts_90 dg) 
 Count Rates for omnidirectional proton telescope, 3 energy bands (counts_omni) 
 calculated perpendicular proton flux, 5 energy bands (Jperp_p) 
 calculated perpendicular electron flux, 3 energy bands (Jperp_e) 
 calculated omnidirectional proton flux, 5 energy bands from 0/81 and 3 from omni telescopes 
 calculated omnidirectional electron flux, 3 energy bands from 0/83 telescopes - GOES 6/7/8/9/10/11/12 (EPS, MAG) > Electron Flux (> 0. 6 Me. V) 
 Electron Flux (> 2 Me. V) 
 Electron Flux (> 4 Me. V) 
Uncor. Diff. Proton Flux (0. 7 -4 Me. V) - THEMIS P 1 -P 5 + GBOs FAST CRRES (MEA) > MEA FLux (all 17 channels) 
Average MEA flux 
N 
delta_N 
 90 deg MEA flux 
Variance of Jper - SAMPEX Wide range of other ITM (TIMED, Alouette/ISIS), magnetospheric (Polar, Geotail, Cluster, IMAGE, Hawkeye, DE) and heliospheric data (ACE, Wind, STEREO, OMNI 1 AU) • Additional s/c supported in SSCWeb/TIPSOD database - Newer NOAAs, various DMSP Page 5

SSCWeb Capabilities (all web and webservices accessible) Page 6

A Short Demo of the 3 -D Animated Orbit Viewer Page 7

BACKUP CDAWeb Graphics Examplesfrom TIMED Datasets Page 8

TIMED GUVI Data on CDAWeb --- 1 GUVI 1356 A intensities for Oct 20, 2003 10: 00 -23: 00; Mercator projection; Each thumbnail represents one orbit Page 9

TIMED GUVI Data on CDAWeb --- 2 North South GUVI 1356 A intensities for Oct 20, 2003 10: 00 -23: 00 North (left) and South (right) Polar projections. Each thumbnail represents one orbit. Page 10

TIMED GUVI Data on CDAWeb --- 3 GUVI 1356 A intensities for Oct 20, 2003 19: 30 -22: 00. Along track intensities for all five wavelength bands. GUVI 1356 A intensities for Oct 20, 2003 19: 30 -22: 00. Along track intensities at 7 across-track positions. Page 11

TIMED GUVI Data on CDAWeb --- 4 Movie: 1356 A intensities Halloween storm (Oct 29 - Nov 3, 2003) Page 12

TIDI wind vector data now available on CDAWeb Transverse Mercator shows both poles and equator in same plot In the form of clickable thumbnails or movies for user-selected time period. Cylindrical projection Page 13

SPDF worked closely with the TIMED instrument teams to provide display options for their data that are scientifically interesting and complementary to the ones on their own sites: GUVI: - Cassini projections of airglow intensities showing both poles and equatorial region at the same time (for studying effects of magnetic storms). - Expandable thumbnails of polar plots of intensities. - 14 -day movies of intensity images (polar or Cassini) to quickly spot irregularities and study duration of storm effect. - Along-track intensities at several cross-track positions (intensity line plots for study of irregularities). - Nighttime electron density as image and as line plots at various altitudes (studying Equatorial Anomaly). TIDI: - Mapped wind vector plots on different projections at various altitudes separating descending and ascending phase (different Local Times) and warm and cold side of the instrument. - Meridional and Zonal winds at different altitudes (line plots). SABER: - Images of infrared radiances in 10 channels (1. 27 to 17 ym) from 0 to 150 km (tangent height) and line plots at 80 km. - Images of Mixing Ratios and Volume Emission Rates versus tangent height and also line plots at selected altitudes. SEE: Solar irradiances at several PI-recommended wavelengths and wavelenghts ranges. - Integrated irradiances for several wavelength ranges recommended by the TIMED team. Page 14