378842 (2008 TD4)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.6183797038 ± 7.53e-08
Semi-major axis (a)1.8213010607 AU ± 9.49e-09
Inclination (i)14.45387763° ± 1.23e-05
Long. of Asc. Node (Ω)221.83075141° ± 2.11e-05
Arg. of Perihelion (ω)54.94123949° ± 2.47e-05
Mean Anomaly (M)14.05710883° ± 1.87e-05
Mean Motion (n)0.4009956537°/day ± 3.13e-09
Perihelion dist (q)0.69504545 AU ± 1.37e-07
Aphelion dist (Q)2.94755667 AU ± 1.38e-07
Orbital Period2.45794755 yr ± 1.92e-08
Physical Parameters
H (abs. magnitude)19.78
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.297″
Uncertainty0
Orbit TypeApollo
MOID0.090399 AU
Observations Used146
Oppositions9
Arc Total2008-2023
First Observation Used2008-10-07
Last Observation Used2023-02-17
Observations (155)
Date Type RA Dec Mag Band Observatory
2018-04-09 15:07:18 S 07 55 18.775 -32 16 51.20 L C51
2018-04-09 16:41:33 S 07 54 31.920 -32 13 08.76 L C51
2023-02-17 07:40:03 C 14 37 19.93 -36 30 26.3 u 807
2023-02-17 07:51:08 C 14 37 22.44 -36 30 35.8 u 807
2023-02-17 08:02:13 C 14 37 24.92 -36 30 46.8 u 807