Russell/Strange Saturnian moon cycler family (family seed, Titan-Enceladus focus)

russell-strange-2009-saturnian-multimoon-family · source: literature · validation: V0

Signature

Bodies: Mimas-Enceladus-Tethys-Dione-Rhea-Titan
Primary: Saturn
Sequence (canonical): Saturnian-multi
Sense: n/a
Orbit class: Cycler
strict cycler (infinite returns)
Cycler class: non-keplerian (CR3BP)
Trajectory regime: ballistic
Maintenance ΔV band: unclassified
Model assumption: cr3bp
CR3BP — Jacobi-constant-conserved; signature not patched-conic comparable.
Period: — yr ( × synodic)
Family seed: same paper as the Jovian family entry above (Russell/Strange 2009 JGCD). The Saturnian half of the paper gives most detail to Titan-Enceladus cyclers, several of which "found immediate application as Cassini extended missions options that provide frequent low altitude Enceladus flybys" (per search snippets of the abstract). No single period characterises the family.
Priority date: 2007-01-29

V∞ at encounters

Titan (encounter 1): — (not published)
Family seed — JGCD paper not accessible at ingest.
Enceladus (encounter 2): — (not published)
Same.

CR3BP orbit identity

Jacobi constant: —
Period (non-dim): —
Stability index: —

Orbit view 2.5D ecliptic projection

Not renderable from current data. This is a rotating-frame (CR3BP) periodic orbit. A faithful render requires numerical propagation of the synodic-frame state, which the catalogue does not yet publish as a sampled path — so no stand-in ellipse is drawn (drawing a heliocentric ellipse here would misrepresent the dynamics). The CR3BP identity (Jacobi constant, period, stability) is tabulated above.

model: CR3BP (rotating frame)

3D view not available for rotating-frame (CR3BP) orbits.

Definition status

incomplete — core fields missing or known-unknowns tracked below

Known-unknowns (3)

Values we expect to exist but have not yet filled (distinct from "not applicable"). Tracked per upstream docs/spec.md §16.6.4.

orbit_elements.cr3bp.jacobi_constant [not-applicable]
Russell/Strange 2009 uses circular-coplanar patched-conic model for the Saturnian system. Jacobi constant is not conserved. CR3BP identity would require the Saturn-moon restricted three-body problem per moon pair.

source: Russell & Strange 2009 JGCD full text (paywalled)
orbit_elements.cr3bp.period_nd [not-applicable]
Patched-conic model; non-dimensional CR3BP period not applicable.

source: Russell & Strange 2009 JGCD full text
orbit_elements.cr3bp.stability_index [not-applicable]
Patched-conic model; CR3BP stability index not applicable.

source: Russell & Strange 2009 JGCD full text

Primary citation

Russell, R. P. & Strange, N. J. (2009). Cycler Trajectories in Planetary Moon Systems. Journal of Guidance, Control, and Dynamics, Vol. 32, No. 1, pp. 143-157.

DOI: 10.2514/1.36610

URL: https://arc.aiaa.org/doi/abs/10.2514/1.36610

Corroborating sources

Russell, R. P. & Strange, N. J. (2007). Planetary Moon Cycler Trajectories. AAS/AIAA Space Flight Mechanics Meeting, Sedona AZ, January 29 - February 1, 2007. · link
Conference precursor.

Notes

SCHEMA-MISMATCH FLAG: Saturnian cyclers may overlap with CR3BP territory depending on which moon pair is considered (Titan, much more massive than the Saturnian midsize moons, can be patched-conic modelled; Enceladus / Mimas / Tethys cyclers tend toward low-energy / manifold regimes that are CR3BP-natural). Treat as "candidates for future ingest" pending model decision; for now record the citation only. Per search-snippet abstract: "the Saturn-Titan-Enceladus system was investigated in the most detail in the context of recent Cassini discoveries"; "For the Titan-Enceladus cyclers, Saturn's G rings pose a hazard out to approximately 176,000 km"; "several of the high energy Titan-Enceladus cyclers found immediate application as Cassini extended missions options that provide frequent low altitude Enceladus flybys." Sibling of the Jovian-family entry above. As individual cyclers are split out, they may need new body codes for Saturnian moons (already reserved in data/README.md schema-extended section). TIER-1/TIER-2 SPLIT (moon-tour Tier-1): Titan members are Tier-1 patched-conic-modellable (primary: Saturn, circular-coplanar V_inf about Saturn); midsize-moon members (Mimas/Enceladus/Tethys) defer to the CR3BP Tier-2 milestone. As individual Titan cyclers are split out they take cycler_class: multi-arc / model_assumption: circular-coplanar. This family-seed row stays cycler_class: non-keplerian because its midsize members are genuinely CR3BP — no silent whole-row re-tag (that would falsely claim the Enceladus/Mimas members are patched-conic). An individual Titan-only row is created only when a sourced member is ingested.

Source quotes (per-field provenance)

Every numerical value in this entry traces to a verbatim or paraphrased quote from a cited source.

notes: Russell/Strange 2009 JGCD abstract (via web search snippets): "the Saturn-Titan-Enceladus system was investigated in the most detail in the context of recent Cassini discoveries"; "For the Titan-Enceladus cyclers, Saturn's G rings pose a hazard out to approximately 176,000 km."