docs: update wiki pages, draft board location hierarchy, log book data
- Expand location hierarchy in draft_board.md to 72 items across all systems - Update ST-01/ST-02/XH-01/XH-02/XH-03/Xihe wiki pages (zh + en) - Update log_book.xlsx state node detail data for XH-01 and ST-01 missions Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
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Claude Opus 4.7
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<tr><td><b>Current status</b>: Xihe at Jupiter system, Europa Expedition 3 (ongoing)</td></tr>
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</tbody></table>
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<p>The <b>Xihe-class interplanetary exploration mothership</b> is a first-generation large crewed mothership designed for long-range operations inside the Solar System. Named after Xihe, the solar deity in Chinese mythology, the class supports scientific expeditions, off-world base construction, crew rotation, and deep-space technology validation around Mars, the Jovian moons, and other target bodies. As of March 2060, the lead ship <a href="/home/Exploration_Motherships/Xihe/XH-01">Xihe (XH-01)</a> is in the Jovian system on Europa Expedition 3, continuing deep-space exploration and base-support duties. As of March 2060, the Xihe class has three active ships (<a href="/home/Exploration_Motherships/Xihe/XH-01">Xihe</a>, <a href="/home/Exploration_Motherships/Xihe/XH-02">Taibai (XH-02)</a>, <a href="/home/Exploration_Motherships/Xihe/XH-03">Changxi (XH-03)</a>) and one under construction (XH-04). The lead ship Xihe is currently executing Europa Expedition 3 in the Jovian system.</p>
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<p>The <b>Xihe-class interplanetary exploration mothership</b> is a first-generation large crewed mothership designed for long-range operations inside the Solar System. Named after Xihe, the solar deity in Chinese mythology, the class supports scientific expeditions, off-world base construction, crew rotation, and deep-space technology validation around Mars, the Jovian moons, and other target bodies. As of March 2060, the lead ship <a href="/home/Exploration_Motherships/Xihe/XH-01">Xihe (XH-01)</a> is in the Jovian system on Europa Expedition 3. Taibai (XH-02) has completed construction and is undergoing its trial run. Changxi (XH-03) remains under construction. The status of XH-04 is to be verified.</p>
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<p>The class uses an axial modular configuration with a mass-driver main propulsion system, an Ark cold-fusion reactor, closed-loop life support, an artificial-gravity habitation ring, scientific facilities, a greenhouse module, and reinforced docking hardware. It is not capable of atmospheric re-entry or planetary landing. Surface access and short-range target-system transport are handled by carried ferry shuttles and surface vehicles.</p>
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<p>Before the Stellaria class entered service, Xihe-class motherships served as the main platform for multiple interplanetary missions. Xihe was assembled in low Earth orbit from 2050 to 2052 and subsequently supported Mars-orbit validation, Mars base construction, Europa outpost construction, and Jovian-system scientific operations. The class provided the operational foundation for later interplanetary exploration motherships.</p>
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<p>The Xihe class is a large crewed mothership class designed for Mars and Jovian system exploration. The lead ship, Xihe (XH-01), was completed and commissioned in 2052. Subsequent ships Taibai (XH-02) and Changxi (XH-03) continue the class design with distinct mission specializations.</p>
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<p>The Xihe class is a large crewed mothership class designed for Mars and Jovian system exploration. The lead ship, Xihe (XH-01), was completed and commissioned in 2052. Taibai (XH-02) completed construction in July 2059 and, as of March 2060, is in its trial run phase. Changxi (XH-03) began construction in February 2056 and, as of March 2060, remains under construction.</p>
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<nav class="toc" aria-label="Contents">
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<div class="toc-title">Contents</div>
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<h2 id="mission-operations-system">Mission operations system</h2>
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<p>Xihe-class missions usually combine four elements: the mothership transfer phase, ferry-shuttle terminal transport, surface or orbital-base reception, and return-window management. The mothership handles interplanetary transfer, deep-space communications, life support, cargo custody, and mission command. Echo, Amalthea-type vehicles, or other ferry shuttles handle short-range transport to the target body.</p>
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<p>In 2060, Taibai (XH-02) performed a support transfer from Earth to the Mars One campus, with a mission window from February 26 to March 29. Its cargo included structural trusses, greenhouse components, and support supplies. The mission summary listed a 31-day transfer and about 105 km/s of delta-v margin, reflecting the role of later Xihe-class ships as trunk platforms for Mars-base expansion.</p>
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<p>During the same period, Changxi (XH-03) underwent a Jupiter-relay deployment refit at Star Port Station between January 8 and April 12, 2060. The mission placed later XH-series platforms in deep-space communications, Jovian relay deployment, payload integration, and engine overhaul work as well as surface-support logistics.</p>
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<table>
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<thead><tr><th>Vehicle or site</th><th>Window</th><th>Mission</th><th>Operational meaning</th></tr></thead>
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<tbody>
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<tr><td>Taibai (XH-02)</td><td>2060-02-26 to 2060-03-29</td><td>Mars One campus supply transfer</td><td>Transported structural trusses, greenhouse components, and support supplies.</td></tr>
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<tr><td>Taibai (XH-02)</td><td>2060-03-29</td><td>Mars arrival and cargo handoff</td><td>Surface fleet or ferry vehicles received cargo while the mothership remained in orbital standby.</td></tr>
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<tr><td>Changxi (XH-03)</td><td>2060-01-08 to 2060-04-12</td><td>Star Port Jupiter-relay deployment refit</td><td>Supported communications, payload deployment, and deep-space infrastructure work.</td></tr>
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<tr><td>Mars One Campus Alpha</td><td>From 2059-10-20</td><td>Surface expansion and ISRU staging</td><td>Mothership windows directly affected surface-construction pace.</td></tr>
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</tbody></table>
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<p>Mission tempo is closely tied to off-world base construction schedules. Mothership departure and return windows determine the available time for crew rotations, supply delivery, and equipment installation. In Mars-system missions, the mothership typically remains in a high parking orbit while the surface fleet or ferry shuttles handle terminal cargo transfer. Star Port Station serves as the staging, supply loading, and post-return maintenance hub for mothership missions.</p>
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<h2 id="construction-and-development">Construction and development</h2>
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<p>The lead ship Xihe (XH-01) was assembled in low Earth orbit between 2050 and 2052. The first module arrived in LEO on 2050-03-15, delivered by Vulture shuttles to begin orbital assembly. The artificial-gravity ring exceeded shuttle cargo-bay limits and was launched separately by a super-heavy vehicle. Main assembly took 693 days and was completed on 2052-02-06.</p>
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<p>The orbital commissioning phase (2052-06-01 to 2052-11-30) included low Earth orbit checkout, geostationary-orbit maneuvers, lunar-orbit round trips, and full-system pressure testing, verifying structural integrity, thermal stability, propulsion response, and long-duration life-support endurance. Immediately after commissioning, Xihe entered the Deep Space Test Mission (2053), an uncrewed flight to the Sun-Earth L2 point lasting 340 days, which validated autonomous navigation, remote telemetry, and large-payload delivery ahead of the first crewed Mars mission.</p>
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<p>In terms of construction methods, Xihe (XH-01) was assembled in LEO using Vulture Shuttle heavy-lift missions (2050–2052). Later Xihe-class ships (Taibai, Changxi, XH-04) and Stellaria-class ships transitioned to using Qingtian cargo vessels for module delivery. Assembly shifted from LEO free-flying construction to dock-based assembly at Star Port Station. This transition significantly improved construction efficiency and reduced the burden on the Vulture Shuttle fleet.</p>
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<p>The fitting phase (2052-02-07 to 2052-05-31, 114 days) covered internal system integration and commissioning. The orbital trial run (2052-06-01 to 2052-11-30, 182 days) included low Earth orbit checkout, geostationary-orbit maneuvers, lunar-orbit round trips, and full-system pressure testing, verifying structural integrity, thermal stability, propulsion response, and long-duration life-support endurance. After the trial run, Xihe entered its first maintenance period (2052-12-01 to 2053-01-05), then proceeded to the Deep Space Test Mission (2053-01-12 to 2053-12-18), an uncrewed flight to the Sun-Earth L2 point lasting 340 days, which validated autonomous navigation, remote telemetry, and large-payload delivery ahead of the first crewed Mars mission.</p>
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<p>In terms of construction methods, Xihe (XH-01) was assembled in LEO using Vulture Shuttle heavy-lift missions (2050–2052). Later ships and Stellaria-class vessels transitioned to using Qingtian cargo vehicles for module delivery. Assembly shifted from LEO free-flying construction to dock-based assembly at Star Port Station. This transition improved construction efficiency and reduced the burden on the Vulture Shuttle fleet.</p>
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<p>Xihe-class construction experience directly influenced the Stellaria class. Stellaria retained the axial spine, artificial-gravity ring, and central docking logic while increasing propulsion capability, central volume, long-duration life support, and cryosleep capacity. Later mothership construction increasingly moved toward Star Port Station and large orbital shipyards, with Qingtian cargo vehicles carrying more of the large-module transport work.</p>
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<h2 id="operational-history">Operational history</h2>
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<p>Xihe (XH-01) has executed a series of landmark missions since commissioning in 2052: the Deep Space Test Mission (2053), Mars Mission Demonstration (2054–2055), two Mars One Base construction missions (2055–2057), Mars Expedition 2 (2057–2058), Europa Expedition 1 (2058–2059), and the ongoing Europa Expedition 3 (from 2060), with a comprehensive greenhouse upgrade and maintenance cycle at Star Port Station in 2059–2060. Taibai (XH-02), commissioned in 2056, supported the Vesta mission and multiple Mars expedition rotations. Changxi (XH-03), commissioned in 2059, specializes in Jupiter relay deployment and deep-space communications infrastructure support.</p>
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<p>Detailed operational records are available on individual ship pages.</p>
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<p>Xihe (XH-01) has executed a series of landmark missions since commissioning in 2052: the Deep Space Test Mission (2053), Mars Mission Demonstration (2054–2055), Mars One Base construction missions (2055–2057), Mars Expedition 2 (2057–2058), Europa Expedition 1 (2058–2059), and the ongoing Europa Expedition 3 (from 2060), with a comprehensive greenhouse upgrade and maintenance cycle at Star Port Station in 2059–2060.</p>
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<p>Taibai (XH-02) began construction in February 2058, completed assembly in July 2059, and immediately entered its trial run phase. As of March 2060, the trial run remains in progress and the ship has not yet been formally commissioned. Changxi (XH-03) began construction in February 2056, but its construction has greatly exceeded its planned schedule. As of March 2060, it remains under construction.</p>
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<p>Detailed records are available on individual ship pages.</p>
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<ul>
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<li><a href="/home/Exploration_Motherships/Xihe/XH-01">Xihe (XH-01)</a> — complete mission record including Deep Space Test, Mars One construction, Mars expeditions, and Europa expeditions.</li>
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<li><a href="/home/Exploration_Motherships/Xihe/XH-02">Taibai (XH-02)</a> — mission record including the Vesta mission and Mars expedition support.</li>
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<li><a href="/home/Exploration_Motherships/Xihe/XH-03">Changxi (XH-03)</a> — mission record including Jupiter relay deployment and deep-space communications infrastructure support.</li>
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<li><a href="/home/Exploration_Motherships/Xihe/XH-02">Taibai (XH-02)</a> — construction record and trial run progress.</li>
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<li><a href="/home/Exploration_Motherships/Xihe/XH-03">Changxi (XH-03)</a> — construction record.</li>
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</ul>
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<table>
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<thead><tr><th>Stage</th><th>Time</th><th>Main activity</th></tr></thead>
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<tbody>
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<tr><td>Low Earth orbit assembly</td><td>2050-2052</td><td>Segment assembly, major-module docking, and whole-ship integration.</td></tr>
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<tr><td>Orbital checkout</td><td>2052</td><td>Earth-orbit, GEO, and lunar-orbit round-trip tests.</td></tr>
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<tr><td>Mars-system missions</td><td>2053-2056</td><td>Mars-orbit validation, Mars One base construction, and crewed surface operations.</td></tr>
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<tr><td>Jovian-system missions</td><td>2056-2059</td><td>Europa outpost support, Jovian-moon science, and long-duration residence validation.</td></tr>
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<tr><td>Post-upgrade service</td><td>From 2060</td><td>Continued deep-space support after radiation, navigation, greenhouse, and docking upgrades.</td></tr>
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<tr><td>Low Earth orbit assembly</td><td>2050-03 to 2052-02</td><td>Segment assembly, major-module docking, and whole-ship integration (693 days).</td></tr>
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<tr><td>Fitting</td><td>2052-02 to 2052-05</td><td>Internal system integration and commissioning (114 days).</td></tr>
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<tr><td>Orbital trial run</td><td>2052-06 to 2052-11</td><td>Earth-orbit, GEO, and lunar-orbit round-trip tests (182 days).</td></tr>
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<tr><td>Deep space test</td><td>2053-01 to 2053-12</td><td>Uncrewed autonomous flight to Sun-Earth L2 (340 days).</td></tr>
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<tr><td>Mars-system missions</td><td>2054–2058</td><td>Mars-orbit validation, Mars One base construction and crewed surface operations, Mars Expedition 2.</td></tr>
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<tr><td>Jovian-system missions</td><td>From 2058</td><td>Europa Expedition 1, Europa outpost support, Jovian-moon science (ongoing).</td></tr>
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</tbody></table>
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<h2 id="maintenance-and-upgrades">Maintenance and upgrades</h2>
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</tbody></table>
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<h2 id="relationship-with-stellaria-class">Relationship with Stellaria class</h2>
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<p>The Xihe program initially planned to build multiple hulls following XH-01. In September 2050, two additional hulls began construction as "basic motherships" based on the Xihe design. By early 2053, with 871 days of construction completed, these two hulls were paused.</p>
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<p>The pause was driven by a strategic decision: the emerging Stellaria program offered a higher-performance platform with lightspeed engine capability. Rather than complete them as standard Xihe-class ships, the two incomplete hulls were transferred to the Stellaria program in May 2053. Over the following 352 days (May 2053 to April 2054), they were reconfigured — receiving lightspeed engines while retaining Xihe-class standard systems for other components. These became <a href="/home/Exploration_Motherships/Stellaria/ST-01">ST-01 (Wanxingyuan)</a> and <a href="/home/Exploration_Motherships/Stellaria/ST-02">ST-02 (Wanxingyuan NEXT)</a>.</p>
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<p>Meanwhile, Xihe-class production continued independently. Taibai (XH-02) began construction in December 2054 (completed October 2056). Changxi (XH-03) began February 2056 (completed December 2059). XH-04 began September 2059 (projected completion August 2061).</p>
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<p>The Xihe program initially planned to build multiple hulls following XH-01. In September 2050, two additional hulls began construction as "basic motherships" based on the Xihe design (concurrently with XH-01's own construction). By February 2053, with 871 days of construction completed, these two hulls were paused.</p>
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<p>The pause was driven by a strategic decision: the emerging Stellaria program offered a higher-performance platform with lightspeed engine capability. Rather than complete them as standard Xihe-class ships, the two incomplete hulls were transferred to the Stellaria program in May 2053. Over the following 352 days (May 2053 to April 2054), they were reconfigured — receiving lightspeed engines while retaining Xihe-class standard systems for other components. These became <a href="/home/Exploration_Motherships/Stellaria/ST-01">ST-01 (Wanxingyuan)</a> and <a href="/home/Exploration_Motherships/Stellaria/ST-02">ST-02 (Wanxingyuan NEXT)</a>. It is important to note that these two basic mothership hulls are not the same as the later XH-02 Taibai and XH-03 Changxi — they were separate hulls started in 2050 alongside XH-01, while XH-02 and XH-03 are different ships built later.</p>
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<p>Xihe-class production continued independently thereafter. Changxi (XH-03) began construction in February 2056, the earliest of the follow-on hulls to start, but its construction has greatly exceeded its planned schedule and, as of March 2060, remains incomplete. Taibai (XH-02) began construction in February 2058 — roughly two years after XH-03 — yet completed assembly first, in July 2059, and immediately entered its trial run. This unusual construction sequence (XH-03 started first but XH-02 finished first) may reflect resource allocation decisions made during the Stellaria program ramp-up.</p>
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<p>The two classes now serve complementary roles: Xihe class focuses on Mars and Jupiter system missions with established technology; Stellaria class pushes outward to Saturn, Neptune, and beyond with higher speed and endurance.</p>
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<h2 id="fleet-and-successors">Fleet and successors</h2>
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<table>
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<thead><tr><th>Ship</th><th>Construction</th><th>Status</th><th>Current Mission</th></tr></thead>
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<thead><tr><th>Ship</th><th>Construction</th><th>Status (2060-03)</th><th>Current Mission</th></tr></thead>
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<tbody>
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<tr><td><a href="/home/Exploration_Motherships/Xihe/XH-01">Xihe (XH-01)</a></td><td>2050-03 → 2052-02</td><td>Active</td><td>Europa Expedition 3 (Jovian system, departed 2060-02-20)</td></tr>
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<tr><td><a href="/home/Exploration_Motherships/Xihe/XH-02">Taibai (XH-02)</a></td><td>2054-12 → 2056-10</td><td>Active</td><td>Post-Vesta mission maintenance, Mars expedition support</td></tr>
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<tr><td><a href="/home/Exploration_Motherships/Xihe/XH-03">Changxi (XH-03)</a></td><td>2056-02 → 2059-12</td><td>Active</td><td>Post-Jupiter relay deployment refit shakedown</td></tr>
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<tr><td>XH-04</td><td>2059-09 → 2061-08 (est.)</td><td>Under construction</td><td>Assembly phase</td></tr>
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<tr><td><a href="/home/Exploration_Motherships/Xihe/XH-01">Xihe (XH-01)</a></td><td>2050-03 → 2052-02</td><td>Active</td><td>Europa Expedition 3 (Jovian system)</td></tr>
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<tr><td><a href="/home/Exploration_Motherships/Xihe/XH-02">Taibai (XH-02)</a></td><td>2058-02 → 2059-07</td><td>In trial run</td><td>Trial run (not yet commissioned)</td></tr>
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<tr><td><a href="/home/Exploration_Motherships/Xihe/XH-03">Changxi (XH-03)</a></td><td>2056-02 → incomplete</td><td>Under construction / maintenance</td><td>Construction phase</td></tr>
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<tr><td>XH-04</td><td>To be verified</td><td>To be verified</td><td>To be verified</td></tr>
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</tbody></table>
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<p>Complete construction records and mission details are available on individual ship pages: <a href="/home/Exploration_Motherships/Xihe/XH-01">Xihe (XH-01)</a>, <a href="/home/Exploration_Motherships/Xihe/XH-02">Taibai (XH-02)</a>, <a href="/home/Exploration_Motherships/Xihe/XH-03">Changxi (XH-03)</a>.</p>
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<p>Complete construction records are available on individual ship pages: <a href="/home/Exploration_Motherships/Xihe/XH-01">Xihe (XH-01)</a>, <a href="/home/Exploration_Motherships/Xihe/XH-02">Taibai (XH-02)</a>, <a href="/home/Exploration_Motherships/Xihe/XH-03">Changxi (XH-03)</a>.</p>
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<p>In the supporting cargo fleet, Jinniao-class cargo ships JW-01 through JW-03 provide regular heavy cargo resupply to Mars One Base and Europa Outpost, forming a logistics chain with Xihe-class motherships from LEO to the Mars and Jovian systems.</p>
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<p>As the Stellaria class entered service, the Xihe class gradually shifted to routine inner-Solar-System support, technology validation, and high-reliability backup platform roles. Construction of XH-04 confirms that the Xihe lineage maintains production capacity in the second-generation-mothership era.</p>
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<p>As the Stellaria class entered service, the Xihe class gradually shifted to routine inner-Solar-System support, technology validation, and high-reliability backup platform roles. The construction schedule of follow-on Xihe-class hulls depends on mission requirements and Stellaria-program resource allocation.</p>
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<h2 id="see-also">See also</h2>
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<ul>
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