399433 (2001 YK4)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.7766512705 ± 3.50e-08
Semi-major axis (a)2.6547629684 AU ± 3.90e-08
Inclination (i)4.37697530° ± 6.78e-06
Long. of Asc. Node (Ω)155.68713128° ± 1.42e-04
Arg. of Perihelion (ω)210.85778001° ± 1.46e-04
Mean Anomaly (M)204.04258738° ± 2.05e-05
Mean Motion (n)0.2278629154°/day ± 5.02e-09
Perihelion dist (q)0.59293794 AU ± 9.33e-08
Aphelion dist (Q)4.71658800 AU ± 1.16e-07
Orbital Period4.32552301 yr ± 9.54e-08
Physical Parameters
H (abs. magnitude)18.58
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.397″
Uncertainty0
Orbit TypeApollo
MOID0.064607 AU
Observations Used139
Oppositions11
Arc Total2001-2015
First Observation Used2001-12-23
Last Observation Used2015-03-17
Observations (166)
Date Type RA Dec Mag Band Observatory
2015-01-24 10:20:59 C 09 25 29.38 +10 49 18.8 R G45
2015-01-24 10:28:53 C 09 25 28.67 +10 49 23.3 R G45
2015-01-24 10:34:54 C 09 25 28.14 +10 49 26.4 R G45
2015-01-27 09:34:21 C 09 19 18.85 +11 27 43.9 R G45
2015-01-27 09:40:14 C 09 19 18.29 +11 27 46.6 R G45
2015-01-27 09:59:58 C 09 19 16.62 +11 27 57.2 R G45
2015-01-27 10:07:47 C 09 19 15.87 +11 28 00.8 R G45
2015-01-27 10:13:39 C 09 19 15.42 +11 28 04.5 R G45
2015-01-27 10:19:37 C 09 19 14.88 +11 28 07.3 R G45
2015-02-19 06:53:45 C 08 40 47.762 +15 25 54.38 L F51
2015-02-19 07:12:18 C 08 40 46.804 +15 26 00.19 L F51
2015-02-19 07:30:45 C 08 40 45.841 +15 26 06.28 L F51
2015-02-19 07:49:16 C 08 40 44.876 +15 26 12.19 L F51
2015-03-17 08:18:11 C 08 24 17.072 +17 32 28.42 L F51
2015-03-17 08:36:06 C 08 24 16.938 +17 32 29.92 L F51
2015-03-17 08:54:06 C 08 24 16.830 +17 32 31.60 L F51