TKS Lunar Observatory

चन्द्रमा — Lunar Ephemeris & Observatory

Live Moon position · phase · orbit · nodes · nakshatra · tithi · rise/set · eclipses — from precise apparent positions (Engine A).

Moon dashboard

Level 1 · Today's Moon

1 · Live lunar position data
2 · Tithi observatory
3 · Moon–Sun geometry
4 · Lunar phase

Level 2 · Astronomical Moon

5 · Lunar orbit (geocentric, osculating)
6 · चन्द्रगति (motion)
7 · Nakshatra observatory
8 · Rahu / Ketu (lunar nodes)
Node crossing = Moon's ecliptic latitude β = 0° — the basis of eclipse geometry.

Level 3 · Pañcāṅga Moon

9 · Eclipse observatory
Status…
Eclipse possible when New/Full Moon occurs near a node (|β| small).
10 · Rise / transit / set
Topocentric (parallax) + वक्रीभवन (refraction P/T) + ऊँचाई-dip + ऊपरी किनारा (upper-limb). Alt/P/T ऊपर बदलें।
11 · Chandra darśana
12 · Lunar anomaly
13 · Lunar physical parameters
14 · Tidal astronomy force + equilibrium
Tide-generating force and the equilibrium tide (theoretical fluid-Earth, no continents). Actual local sea level = equilibrium + bathymetry + ocean dynamics (amphidromic systems, resonance) — see §14b for the online tide model (external). Equilibrium tide ≠ actual local sea level.
14b · Actual local sea level — Mumbai (online tide model) online · Mumbai
Default coastal station: Mumbai (19.076°N, 72.877°E). Fetched from Open-Meteo Marine (sea_level_height_msl — FES/hydrodynamic tide model, i.e. it already includes bathymetry & ocean dynamics). This is an external model, not our equilibrium tide — shown for real-world comparison.

Level 4 · Scientific Moon

15 · Ephemeris comparison data
Independent SPK/DAF evaluation of each kernel at the same epoch. DE440↔DE441 <0.01″; Swiss Ephemeris (external) planned.
16 · Engine-B Moon laboratory data
Engine B = independent N-body (DOPRI5; Newtonian+1PN+J2..). Δ relative to DE441 (deep-time) / DE440 (engine-b). IC Monte-Carlo σλ(t) = offline batch.

Level 5 · Deep-time Moon

17 · Deep-time Moon data · reference region
REFERENCE = DE441 validated (±~15 kyr) · RECONSTRUCTION = TKS-B propagated (offline for >15 kyr) · UNCERTAINTY = model/IC sensitivity. “Dynamical reconstruction — not equivalent to modern observational ephemeris accuracy.”
19 · Lunar longitude timeline data (|yr|≤15k)
λ (sāyana), β, distance and Moon–Sun longitude vs time. Range beyond DE441 (±~15 kyr) not available live — dynamical reconstruction only (disclaimer).
Research notes. Deep-time & tidal-forcing research: Engine-B batch, σλ(t) Monte-Carlo, ocean tidal modelling — offline.
18 · Ancient lunar astronomy framework
Pipeline: textual value → epoch assumption → TKS reconstruction → modern reference → Δλ (Vedāṅga Jyotiṣa · Sūryasiddhānta · Āryabhaṭīya). Curated textual dataset: planned; scholarly comparison, not verdicts.

Structure

Moon ├── 1 Position ✓ ── 2 Tithi observatory ✓ ├── 3 Geometry ✓ ── 4 Phase ✓ ├── 5 Orbit ✓ ── 6 Motion ✓ ├── 7 Nakshatra ✓ ── 8 Nodes ✓ ├── 9 Eclipse ✓ ── 10 Rise / Transit / Set ✓ ├── 11 Chandra darśana ✓ ── 12 Anomaly ✓ ├── 13 Physical ✓ ── 14 Tides ✓ ├── 15 Comparison ◐ ── 16 Engine-B ○ └── 17 Deep time ○ ── 18 Ancient ○ 19 Timeline ○ ── 20 Research notes ○ (✓ data · ◐ partial · ○ planned)
संस्करणः bin-1790611335