2015 YD18

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.6408388129 ± 1.60e-06
Semi-major axis (a)1.5446312772 AU ± 7.27e-08
Inclination (i)40.79006249° ± 5.38e-05
Long. of Asc. Node (Ω)283.03374395° ± 7.73e-06
Arg. of Perihelion (ω)56.23532365° ± 1.31e-04
Mean Anomaly (M)94.90013859° ± 1.65e-04
Mean Motion (n)0.5134226680°/day ± 3.63e-08
Perihelion dist (q)0.55477160 AU ± 2.47e-06
Aphelion dist (Q)2.53449095 AU ± 2.48e-06
Orbital Period1.91971712 yr ± 1.36e-07
Physical Parameters
H (abs. magnitude)20.96
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.249″
Uncertainty0
Orbit TypeApollo
MOID0.240761 AU
Observations Used61
Oppositions1
Arc Total2015-2017
First Observation Used2015-12-31
Last Observation Used2017-12-21
Observations (61)
Date Type RA Dec Mag Band Observatory
2016-02-06 02:54:45 C 05 21 08.83 +10 59 46.0 u H21
2016-02-06 03:23:39 C 05 21 09.06 +10 59 29.2 u H21
2017-12-19 04:41:04 C 09 03 13.88 +12 47 43.7 t J04
2017-12-19 04:44:27 C 09 03 13.28 +12 47 39.8 t J04
2017-12-19 04:50:51 C 09 03 12.17 +12 47 32.5 t J04
2017-12-20 09:22:39 C 08 58 11.70 +12 15 57.0 o 926
2017-12-20 09:39:42 C 08 58 08.62 +12 15 37.9 o 926
2017-12-20 09:56:43 C 08 58 05.58 +12 15 19.7 o 926
2017-12-21 09:22:05 C 08 53 56.26 +11 49 29.2 o 926
2017-12-21 09:39:06 C 08 53 53.11 +11 49 11.0 o 926
2017-12-21 09:56:08 C 08 53 50.02 +11 48 51.8 o 926