The PACE Project is discussing ride sharing options for its launch vehicle.
Building on lessons learned from previous ocean color studies, a team of dedicated people is bringing PACE to life. PACE will face a series of important milestones during its mission development. The Development Team at Goddard Space Flight Center (GSFC) will guide PACE through each phase as the instruments, spacecraft, and observatory are built, tested, and flown.
ObservatoryGSFC is responsible for the principal mission elements, including the design and fabrication of the spacecraft, development of scientific instrumentation. The Investigation Team, funded by NASA Earth Science Directorate, will provide data analysis for the mission.
|Mass with fuel||Not to exceed 1700 kg (3748 lb)|
|Dimensions||1.5 m x 1.5 m x 3.2 m (4.9 ft x 4.9 ft x 10.5 ft)||Power||1000 Watts|
|Communications||S-Band - Command & Telemetry
Ka-Band - Science Data
InstrumentsThe primary science instrument planned for PACE is the Ocean Color Instrument (OCI) which will be capable of measuring the color of the ocean from ultraviolet to shortwave infrared. The mission is considering options for a complementary polarimeter to assist in atmospheric correction, and make observations of aerosols and clouds. Learn more about the OCI »
Why a Polarimeter?Atmospheric Correction is difficult to accurately perform without a polarimeter when absorbing aerosols are present
- Aerosol Science on the radiative forcing of climate that can be done with a polarimeter is complementary to ocean color objectives
- Cloud Science associated with cloud feedback is facilitated by the combined payload of an ocean color instrument & polarimeter
- Hydrosol Characterization is improved by observations of the polarization of scattered light
|In July 2017, the mission entered Phase B, Preliminary Design & Technology Completion, with an expected launch readiness date of 2022. View the full mission timeline »|
|JAN 16-18, 2018||Science Team Meeting|
|Events marked with an asterisk (*) are tentative.|
|JUL 10 - AUG 5, 2017||Ocean Optics Summer Course|
|MAY 15-18, 2017||International Ocean Colour Science Meeting 2017|
|MAR 27, 2017||Key Decision Point - B|
|JAN 24-26, 2017||Mission System Requirements Review|
|JAN 17-19, 2017||PACE Science Team Meeting|
|DEC 13, 2016||PACE Town Hall at AGU Fall Meeting|
|AUG 18, 2016||Acquisition Strategy Meeting|
|JUN 30, 2016||OCI PACE Mission Preliminary Design Webinar|
|JUN 2016||Key Decision Point - Phase A|
|MAR 2016||Mission Concept Review|
|JAN 2016||PACE Science Team Meeting|
|JAN 2015||PACE Science Team Meeting|
|MAR 2012||PACE Science Definition Team Meeting|
|NOV 2011||PACE Science Definition Team Meeting|
Earth surface spatial resolution at nadir of 1 kilometer2 (0.4 miles2) or better for all science bands.
Nominal spacecraft altitude is 676.5 kilometers (420 miles) with an inclination of 98°.
OCI will have 2-day global coverage at 60° instrument view angle.
Downlink and storage of the complete 5-nanometer resolution data from spacecraft to ground at 600 Mbps.
The PACE spacecraft will store information collected over 7 orbits, totaling about 1.7 terabytes (1.7x1012 bytes) of data.
Monthly characterization of instrument detector and optical component changes using lunar observations through the Earth-viewing port that illuminate all science detector elements. Daily solar calibrations.
PACE is being implemented as a NASA Class C mission with a notional launch date in the 2022-2023 timeframe and a minimum mission duration of three years, with orbit maintenance capabilities for 10 years.
PACE is designed as a design-to-cost mission, meaning that it has a fixed budget cap.