Putting the award page together from the records…
Putting the award page together from the records…
INTERSTELLAR MAPPING AND ACCELERATION PROBE (IMAP) IS A WATERSHED MISSION THAT SIMULTANEOUSLY INVESTIGATES THE ACCELERATION OF ENERGETIC PARTICLES AND INTERACTION OF THE SOLAR WIND WITH THE LOCAL INTERSTELLAR MEDIUM. IMAP WILL 1) ADVANCE THE UNDERSTANDING OF THE TEMPORAL AND SPATIAL EVOLUTION OF THE BOUNDARY REGION IN WHICH THE SOLAR WIND AND INTERSTELLAR MEDIUM INTERACT, 2) IDENTIFY AND ADVANCE THE UNDERSTANDING OF PROCESSES RELATED TO THE INTERACTIONS OF THE MAGNETIC FIELD OF THE SUN AND THE LOCAL INTERSTELLAR MEDIUM, 3) IMPROVE THE UNDERSTANDING OF THE COMPOSITION AND PROPERTIES OF THE LOCAL INTERSTELLAR MEDIUM, AND 4) IDENTIFY AND ADVANCE THE UNDERSTANDING OF PARTICLE INJECTION AND ACCELERATION PROCESSES NEAR THE SUN, IN THE HELIOSPHERE AND HELIOSHEATH. IMAP IS BASED ON A COMPLETE AND SYNERGISTIC SET OF OBSERVATIONS. IN SITU AT 1AU, THIS REQUIRES DETAILED OBSERVATIONS OF THE SOLAR WIND ELECTRONS AND IONS SUPRATHERMAL, PICKUP, AND ENERGETIC ION POPULATIONS AND MAGNETIC FIELD. FOR THE OUTER HELIOSPHERE INTERACTION, IT REQUIRES ADVANCED GLOBAL OBSERVATIONS OF THE REMOTE PLASMA AND ENERGETIC IONS OVER A BROAD ENERGY RANGE VIA ENERGETIC NEUTRAL ATOM (ENA) IMAGING, AS WELL AS PRECISE OBSERVATION OF THE NEUTRAL INTERSTELLAR ATOMS PENETRATING THE HELIOSPHERE. COMPLEMENTARY OBSERVATIONS OF INTERSTELLAR DUST AND THE UV GLOW OF INTERSTELLAR NEUTRALS, WHILE NOT REQUIRED FOR THE THRESHOLD MISSION, ADD IMPORTANT CONTEXT AND INSIGHTS TO DEEPEN PHYSICAL UNDERSTANDING OF THE BASELINE MISSION. THESE OBSERVATIONAL NEEDS WILL REQUIRE AN INTEGRATED AND COORDINATED SUITE OF 10 INSTRUMENTS THAT SPAN BOTH THE IN SITU AND REMOTE IMAGING ASPECTS OF THE INVESTIGATION. AS THE PI INSTITUTION PRINCETON UNIVERSITY OVERSEES THE DEVELOPMENT OF IMAP TO ENSURE COST, RISK, AND SCIENCE OBJECTIVES ARE MET IN THE CONTEXT OF AN OVERALL PLAN TO DEVELOP, INTEGRATE, TEST, LAUNCH, COMMISSION, AND OPERATE THE IMAP MISSION. PRINCETON WILL DEVELOP THE SOLAR WIND AND PICKUP ION (SWAPI) INSTRUMENT, MANAGE THE MISSION SCIENCE TEAM, DEVELOP THE INTERSTELLAR DUST EXPERIMENT (IDEX) INSTRUMENT DATA PIPELINE, INITIATE THE FUTURE LEADERS PROGRAM, AND OVERSEE THE MISSION STUDENT COLLABORATION.
Up for re-bid: ends 2028-01-31. Recompete brief → · HYDROSPHERE, BIOSPHERE, & GEOPHYSICS (HBG) SUPPORT SERVICES II - FINAL REQUEST FOR PROPOSAL (FRFP) ↗
SpendQuery holds FY2023 on; earlier years are on USAspending.gov.
13 subawards totaling $8.34M (15.0% of what was obligated), as The Trustees of Princeton University reported them. Primes report subawards of $30,000 or more; smaller ones and unreported ones aren't here.
| Subcontractor | Amount | Subawards | Where | First | Last |
|---|---|---|---|---|---|
| The Regents of the University of Colorado | $3.32M | 1 | CO | 2026-01-30 | 2026-01-30 |
| Menlo Innovations LLC | $1.62M | 1 | MI | 2026-01-30 | 2026-01-30 |
| Southwest Research Institute | $1.27M | 1 | TX | 2026-02-09 | 2026-02-09 |
| University System of New Hampshire | $1.27M | 5 | NH | 2022-11-16 | 2026-01-30 |
| University of California, Los Angeles | $235.5K | 1 | CA | 2022-12-02 | 2022-12-02 |
| The George Mason University Instructional Foundation, Inc. | $232.6K | 1 | VA | 2023-09-11 | 2023-09-11 |
| Regents of the University of Michigan | $215.3K | 1 | MI | 2026-06-16 | 2026-06-16 |
| California Institute of Technology | $93.2K | 1 | CA | 2026-03-10 | 2026-03-10 |
| The University of Chicago | $85.2K | 1 | IL | 2022-12-12 | 2022-12-12 |
| Date | To | Amount | For |
|---|---|---|---|
| 2026-01-30 | The Regents of the University of Colorado | $3.32M | INTERSTELLAR MAPPING AND ACCELERATION PROBE (IMAP) |
| 2026-01-30 | Menlo Innovations LLC | $1.62M | INTERSTELLAR MAPPING AND ACCELERATION PROBE (IMAP) |
| 2026-02-09 | Southwest Research Institute | $1.27M | INTERSTELLAR MAPPING AND ACCELERATION PROBE (IMAP) |
| 2026-01-30 | University System of New Hampshire | $905.8K | INTERSTELLAR MAPPING AND ACCELERATION PROBE (IMAP) |
| 2022-12-02 | University of California, Los Angeles | $235.5K | INTERSTELLAR MAPPING AND ACCELERATION PROBE (IMAP) |
| 2023-09-11 | George Mason University | $232.6K | SUBRECIPIENT WILL WORK WITH THE PRINCETON IMAP SATELLITE'S SCIENCE TEAM AND THEIR COMMUNICATIONS OUTREACH TEAM TO ACCOMPLISH IMAP SATELLITE'S SCIENTIFIC AND STRATEGIC COMMUNICATIONS GOALS. |
| 2026-06-16 | Regents of the University of Michigan | $215.3K | INTERSTELLAR MAPPING AND ACCELERATION PROBE (IMAP) |
| 2023-02-06 | University System of New Hampshire | $139.8K | THE IMAP SCIENCE TEAM HAS LAID THE GROUNDWORK FOR ALL FOUR OF THE IMAP SCIENCE OBJECTIVES. DURING PHASE C/D, THE SCIENCE TEAM WILL HELP TO ENSURE THAT THE CRITICAL DESIGN, BUILD, INTEGRATION AND TESTING ACTIVITIES… |
| 2023-02-06 | University System of New Hampshire | $139.8K | THE IMAP SCIENCE TEAM HAS LAID THE GROUNDWORK FOR ALL FOUR OF THE IMAP SCIENCE OBJECTIVES. DURING PHASE C/D, THE SCIENCE TEAM WILL HELP TO ENSURE THAT THE CRITICAL DESIGN, BUILD, INTEGRATION AND TESTING ACTIVITIES… |
| 2026-03-10 | California Institute of Technology | $93.2K | INTERSTELLAR MAPPING AND ACCELERATION PROBE (IMAP) |
| 2022-12-12 | The University of Chicago | $85.2K | SUBRECIPIENT WILL CONTINUE TO WORK ON AND FINALIZE A PAPER ON CONFIGURATION OF THE MAGNETIC FIELD AROUND THE HELIOSPHERE AND WORK ON BRINGING TO PUBLISHABLE STATUS A CONTINUING STUDY OF THE INTERSTELLAR NEUTRAL… |
| 2022-11-16 | University System of New Hampshire | $41.8K | THE IMAP SCIENCE TEAM HAS LAID THE GROUNDWORK FOR ALL FOUR OF THE IMAP SCIENCE OBJECTIVES. DURING PHASE C/D, THE SCIENCE TEAM WILL HELP TO ENSURE THAT THE CRITICAL DESIGN, BUILD, INTEGRATION AND TESTING ACTIVITIES… |
| 2022-11-16 | University System of New Hampshire | $41.8K | THE IMAP SCIENCE TEAM HAS LAID THE GROUNDWORK FOR ALL FOUR OF THE IMAP SCIENCE OBJECTIVES. DURING PHASE C/D, THE SCIENCE TEAM WILL HELP TO ENSURE THAT THE CRITICAL DESIGN, BUILD, INTEGRATION AND TESTING ACTIVITIES… |
28 actions since 2022-11-22. Each is a modification or amendment with the money it added or took back.
| Date | Modification | Kind | Amount | What the agency wrote |
|---|---|---|---|---|
| 2026-07-07 | P00056 | Funding only | $994.4K | INTERSTELLAR MAPPING AND ACCELERATION PROBE (IMAP) EXPLORES AND MAPS THE HELIOSPHERE USING 10 ADVANCED SCIENTIFIC INSTRUMENTS TO ANALYZE SOLAR WIND PARTICLES, ENERGETIC NEUTRAL ATOMS, AND COSMIC DUST. |
| 2026-06-04 | P00055 | Administrative change | $0 | ADD 52.222-90 IAW EXECUTIVE ORDER 14398. INTERSTELLAR MAPPING AND ACCELERATION PROBE (IMAP) EXPLORES AND MAPS THE HELIOSPHERE USING 10 ADVANCED SCIENTIFIC INSTRUMENTS TO ANALYZE SOLAR WIND PARTICLES, ENERGETIC NEUTRAL ATOMS, AND COSMIC DUST. |
| 2026-05-12 | P00054 | Change order definitized | $25.05M | INTERSTELLAR MAPPING AND ACCELERATION PROBE (IMAP) IS A WATERSHED MISSION THAT SIMULTANEOUSLY INVESTIGATES THE ACCELERATION OF ENERGETIC PARTICLES AND INTERACTION OF THE SOLAR WIND WITH THE LOCAL INTERSTELLAR MEDIUM. IMAP WILL 1) ADVANCE THE UNDERSTANDING OF… |
| 2026-04-21 | P00053 | Administrative change | $1.14M | INTERSTELLAR MAPPING AND ACCELERATION PROBE (IMAP) IS A WATERSHED MISSION THAT SIMULTANEOUSLY INVESTIGATES THE ACCELERATION OF ENERGETIC PARTICLES AND INTERACTION OF THE SOLAR WIND WITH THE LOCAL INTERSTELLAR MEDIUM. IMAP WILL 1) ADVANCE THE UNDERSTANDING OF… |
| 2026-02-19 | P00052 | Funding only | $337.0K | INTERSTELLAR MAPPING AND ACCELERATION PROBE (IMAP) IS A WATERSHED MISSION THAT SIMULTANEOUSLY INVESTIGATES THE ACCELERATION OF ENERGETIC PARTICLES AND INTERACTION OF THE SOLAR WIND WITH THE LOCAL INTERSTELLAR MEDIUM. IMAP WILL 1) ADVANCE THE UNDERSTANDING OF… |
| 2026-01-14 | P00051 | Administrative change | $6.02M | INTERSTELLAR MAPPING AND ACCELERATION PROBE (IMAP) IS A WATERSHED MISSION THAT SIMULTANEOUSLY INVESTIGATES THE ACCELERATION OF ENERGETIC PARTICLES AND INTERACTION OF THE SOLAR WIND WITH THE LOCAL INTERSTELLAR MEDIUM. IMAP WILL 1) ADVANCE THE UNDERSTANDING OF… |
| 2025-12-17 | P00050 | Change order | $0 | INTERSTELLAR MAPPING AND ACCELERATION PROBE (IMAP) IS A WATERSHED MISSION THAT SIMULTANEOUSLY INVESTIGATES THE ACCELERATION OF ENERGETIC PARTICLES AND INTERACTION OF THE SOLAR WIND WITH THE LOCAL INTERSTELLAR MEDIUM. IMAP WILL 1) ADVANCE THE UNDERSTANDING OF… |
| 2025-08-22 | P00049 | Administrative change | $1.46M | INTERSTELLAR MAPPING AND ACCELERATION PROBE (IMAP) IS A WATERSHED MISSION THAT SIMULTANEOUSLY INVESTIGATES THE ACCELERATION OF ENERGETIC PARTICLES AND INTERACTION OF THE SOLAR WIND WITH THE LOCAL INTERSTELLAR MEDIUM. IMAP WILL 1) ADVANCE THE UNDERSTANDING OF… |
| 2025-04-30 | P00048 | Administrative change | $0 | REMOVAL/UPDATE OF CLAUSES IAW E.O.'S 14173, 14168, 14148 AND 14057. INTERSTELLAR MAPPING AND ACCELERATION PROBE (IMAP) IS A WATERSHED MISSION THAT SIMULTANEOUSLY INVESTIGATES THE ACCELERATION OF ENERGETIC PARTICLES AND INTERACTION OF THE SOLAR WIND WITH THE… |
| 2025-03-24 | P00047 | Administrative change | $0 | REMOVAL OF CLAUSES/DRDS IAW [EO 14151, 14173 AND 14168] - INTERSTELLAR MAPPING AND ACCELERATION PROBE (IMAP) SUPPORT FOR SMD DIRECTORATE |
| 2025-03-03 | P00046 | Change order | -$29.9K | INTERSTELLAR MAPPING AND ACCELERATION PROBE (IMAP) IS A WATERSHED MISSION THAT SIMULTANEOUSLY INVESTIGATES THE ACCELERATION OF ENERGETIC PARTICLES AND INTERACTION OF THE SOLAR WIND WITH THE LOCAL INTERSTELLAR MEDIUM. IMAP WILL 1) ADVANCE THE UNDERSTANDING OF… |
| 2025-01-23 | P00045 | Administrative change | $0 | REMOVAL OF CLAUSES/DRDS IAW EO 14035 - INTERSTELLAR MAPPING AND ACCELERATION PROBE (IMAP) FOR SMD DIRECTORATE |
| 2024-09-26 | P00044 | Administrative change | $0 | INTERSTELLAR MAPPING AND ACCELERATION PROBE (IMAP) IS A WATERSHED MISSION THAT SIMULTANEOUSLY INVESTIGATES THE ACCELERATION OF ENERGETIC PARTICLES AND INTERACTION OF THE SOLAR WIND WITH THE LOCAL INTERSTELLAR MEDIUM. IMAP WILL 1) ADVANCE THE UNDERSTANDING OF… |
| 2024-09-25 | P00043 | Change order | $0 | INTERSTELLAR MAPPING AND ACCELERATION PROBE (IMAP) IS A WATERSHED MISSION THAT SIMULTANEOUSLY INVESTIGATES THE ACCELERATION OF ENERGETIC PARTICLES AND INTERACTION OF THE SOLAR WIND WITH THE LOCAL INTERSTELLAR MEDIUM. IMAP WILL 1) ADVANCE THE UNDERSTANDING OF… |
| 2024-09-05 | P00042 | Funding only | $7.30M | INTERSTELLAR MAPPING AND ACCELERATION PROBE (IMAP) IS A WATERSHED MISSION THAT SIMULTANEOUSLY INVESTIGATES THE ACCELERATION OF ENERGETIC PARTICLES AND INTERACTION OF THE SOLAR WIND WITH THE LOCAL INTERSTELLAR MEDIUM. IMAP WILL 1) ADVANCE THE UNDERSTANDING OF… |
| 2024-06-27 | P00041 | Change order | $0 | INTERSTELLAR MAPPING AND ACCELERATION PROBE (IMAP) IS A WATERSHED MISSION THAT SIMULTANEOUSLY INVESTIGATES THE ACCELERATION OF ENERGETIC PARTICLES AND INTERACTION OF THE SOLAR WIND WITH THE LOCAL INTERSTELLAR MEDIUM. IMAP WILL 1) ADVANCE THE UNDERSTANDING OF… |
| 2024-06-11 | P00040 | Change order | $0 | INTERSTELLAR MAPPING AND ACCELERATION PROBE (IMAP) IS A WATERSHED MISSION THAT SIMULTANEOUSLY INVESTIGATES THE ACCELERATION OF ENERGETIC PARTICLES AND INTERACTION OF THE SOLAR WIND WITH THE LOCAL INTERSTELLAR MEDIUM. IMAP WILL 1) ADVANCE THE UNDERSTANDING OF… |
| 2024-04-22 | P00039 | Funding only | $3.00M | INTERSTELLAR MAPPING AND ACCELERATION PROBE (IMAP) IS A WATERSHED MISSION THAT SIMULTANEOUSLY INVESTIGATES THE ACCELERATION OF ENERGETIC PARTICLES AND INTERACTION OF THE SOLAR WIND WITH THE LOCAL INTERSTELLAR MEDIUM. IMAP WILL 1) ADVANCE THE UNDERSTANDING OF… |
| 2024-03-21 | P00038 | Funding only | $2.00M | INTERSTELLAR MAPPING AND ACCELERATION PROBE (IMAP) IS A WATERSHED MISSION THAT SIMULTANEOUSLY INVESTIGATES THE ACCELERATION OF ENERGETIC PARTICLES AND INTERACTION OF THE SOLAR WIND WITH THE LOCAL INTERSTELLAR MEDIUM. IMAP WILL 1) ADVANCE THE UNDERSTANDING OF… |
| 2023-09-28 | P00037 | Supplemental agreement (work within scope) | $0 | INTERSTELLAR MAPPING AND ACCELERATION PROBE (IMAP) IS A WATERSHED MISSION THAT SIMULTANEOUSLY INVESTIGATES THE ACCELERATION OF ENERGETIC PARTICLES AND INTERACTION OF THE SOLAR WIND WITH THE LOCAL INTERSTELLAR MEDIUM. IMAP WILL 1) ADVANCE THE UNDERSTANDING OF… |
| 2023-09-07 | P00036 | Change order | $0 | INTERSTELLAR MAPPING AND ACCELERATION PROBE (IMAP) IS A WATERSHED MISSION THAT SIMULTANEOUSLY INVESTIGATES THE ACCELERATION OF ENERGETIC PARTICLES AND INTERACTION OF THE SOLAR WIND WITH THE LOCAL INTERSTELLAR MEDIUM. IMAP WILL 1) ADVANCE THE UNDERSTANDING OF… |
| 2023-09-05 | P00035 | Funding only | $2.02M | INTERSTELLAR MAPPING AND ACCELERATION PROBE (IMAP) IS A WATERSHED MISSION THAT SIMULTANEOUSLY INVESTIGATES THE ACCELERATION OF ENERGETIC PARTICLES AND INTERACTION OF THE SOLAR WIND WITH THE LOCAL INTERSTELLAR MEDIUM. IMAP WILL 1) ADVANCE THE UNDERSTANDING OF… |
| 2023-08-21 | P00034 | Funding only | -$755.5K | INTERSTELLAR MAPPING AND ACCELERATION PROBE (IMAP) IS A WATERSHED MISSION THAT SIMULTANEOUSLY INVESTIGATES THE ACCELERATION OF ENERGETIC PARTICLES AND INTERACTION OF THE SOLAR WIND WITH THE LOCAL INTERSTELLAR MEDIUM. IMAP WILL 1) ADVANCE THE UNDERSTANDING OF… |
| 2023-07-25 | P00033 | Supplemental agreement (work within scope) | $200.0K | INTERSTELLAR MAPPING AND ACCELERATION PROBE (IMAP) IS A WATERSHED MISSION THAT SIMULTANEOUSLY INVESTIGATES THE ACCELERATION OF ENERGETIC PARTICLES AND INTERACTION OF THE SOLAR WIND WITH THE LOCAL INTERSTELLAR MEDIUM. IMAP WILL 1) ADVANCE THE UNDERSTANDING OF… |
| 2023-06-14 | P00032 | Administrative change | $0 | INTERSTELLAR MAPPING AND ACCELERATION PROBE (IMAP) IS A WATERSHED MISSION THAT SIMULTANEOUSLY INVESTIGATES THE ACCELERATION OF ENERGETIC PARTICLES AND INTERACTION OF THE SOLAR WIND WITH THE LOCAL INTERSTELLAR MEDIUM. IMAP WILL 1) ADVANCE THE UNDERSTANDING OF… |
| 2023-06-12 | P00031 | Funding only | $5.21M | INTERSTELLAR MAPPING AND ACCELERATION PROBE (IMAP) IS A WATERSHED MISSION THAT SIMULTANEOUSLY INVESTIGATES THE ACCELERATION OF ENERGETIC PARTICLES AND INTERACTION OF THE SOLAR WIND WITH THE LOCAL INTERSTELLAR MEDIUM. IMAP WILL 1) ADVANCE THE UNDERSTANDING OF… |
| 2023-03-23 | P00030 | Administrative change | $0 | INTERSTELLAR MAPPING AND ACCELERATION PROBE (IMAP) IS A WATERSHED MISSION THAT SIMULTANEOUSLY INVESTIGATES THE ACCELERATION OF ENERGETIC PARTICLES AND INTERACTION OF THE SOLAR WIND WITH THE LOCAL INTERSTELLAR MEDIUM. IMAP WILL 1) ADVANCE THE UNDERSTANDING OF… |
| 2022-11-22 | P00029 | Change order | $1.50M | INTERSTELLAR MAPPING AND ACCELERATION PROBE (IMAP) IS A WATERSHED MISSION THAT SIMULTANEOUSLY INVESTIGATES THE ACCELERATION OF ENERGETIC PARTICLES AND INTERACTION OF THE SOLAR WIND WITH THE LOCAL INTERSTELLAR MEDIUM. IMAP WILL 1) ADVANCE THE UNDERSTANDING OF… |
Source: USAspending.gov prime award transactions and FSRS subaward reports, as loaded by SpendQuery (data as of 2026-10-22). Amounts are obligations (money committed), not outlays. The official record on USAspending.gov ↗