Leyte Normal University

Tacloban City

SORCE

Prepared by:Argie Balasbas Mabag

SORCE

(Solar Radiation and Climate Experiment)

Spacecraft: SORCE satellite

Launch Vehicle: Pegasus XL

Launch Location: Kennedy Space

Center, Cape Canaveral, Florida

Launch Date: January 28, 2003

Satellite Mass: 290 kg

Power: 348 watts

Communications: Redundant S-Band

Transceivers

Orbit: 645km, 40° inclination

Mission Life: 5-year (6-year goal)

Objectives:

1. Make accurate measurements with

high precision of total solar irradiance,

connect them to previous TSI

measurements, and continue this long-

term climate record. Provide TSI with

an accuracy of 0.01% (100 parts per

million) based on SI units and with a

long-term repeatability of 0.001%/yr.

Objectives:

2. Make daily measurements of the solar ultraviolet irradiance from 120 to 300 nm, with a spectral resolution of 1 nm. Achieve this spectral irradiance measurement with an accuracy of better than 5%, and with a long-term repeatability of 0.5%/yr. Use the solar/stellar comparison technique to relate the solar irradiance to the ensemble average flux from a number of bright, early-type stars (same stars used by the UARS SOLSTICE program)

Objectives:

3. Make the first measurements of the

visible and near IR solar irradiance with

sufficient precision for future climate

studies. Obtain daily measurements of

solar spectral irradiance between 0.3 and

2 µm with a spectral resolution of at least

1/30, an accuracy of 0.03%, and a long-

term repeatability of better than 0.01%/yr.

Objectives:

4. Improve the understanding of how and

why solar irradiance varies, estimate past

and future solar behavior, and investigate

climate responses.

Team

• Edward Chang

SORCE Project

Manager

• Robert Cahalan

SORCE Project

Scientist

Team

• Doug Rabin

SORCE Deputy

Project Scientist

• Don Anderson

NASA Headquarters

Team

• Thomas SparnProgram Manager

• Brian BoyleSystems Engineering, Instrument Integration and Test, Mission Analysis, and Instrument Operations Manager

Team

• Vanessa George

Research Coordinator

LASP(Laboratory for Atmospheric and

Space Physics)

• Ken Griest

Planning/Scheduling

Engineer

Team

• Barry KnappGround S/W Engineer/Analyst, LASP (Laboratory for

Atmospheric and Space Physics)

• Richard KohnertChief Systems Engineer

Team

• Doug Lindholm

Ground S/W

Engineer/Analyst

LASP (Laboratory for

Atmospheric and Space Physics)

• Deb McCabe

Flight Director,

Team

• Randy Meisner

Ground S/W Engineer /

Analyst

• Chris Pankratz

Science Operations

Manager

LASP (Laboratory for

Atmospheric and Space Physics)

Team

• Sean Ryan Mission Operations Manager, LASP (Laboratory for Atmospheric and Space Physics)

• Ann WindnagelGround S/W Engineer/Analyst LASP (Laboratory for

Atmospheric and Space Physics)

Agencies

NASA Goddard

Space Flight Center

University of

Colorado at Boulder

Agencies

Orbital Sciences

Corporation