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
2014-06-08 00:06:33 C 15 04 10.61 -07 22 01.7 t 204
2014-06-19 04:13:16 C 14 41 02.86 -05 49 04.6 q G96
2014-06-19 04:25:25 C 14 41 01.87 -05 49 01.1 q G96
2014-06-19 04:32:41 C 14 41 01.24 -05 48 59.0 q G96
2014-06-19 04:39:57 C 14 41 00.64 -05 48 56.9 q G96
2014-06-20 08:13:17 C 14 38 48.154 -05 40 50.44 L F51
2014-06-20 08:32:09 C 14 38 46.609 -05 40 44.99 L F51
2014-06-20 09:09:55 C 14 38 43.521 -05 40 34.09 L F51
2014-07-19 13:11:02 S 14 00 57.09 -04 17 19.4 L C51
2014-07-19 16:20:28 S 14 00 51.87 -04 17 27.8 L C51
2014-07-19 19:29:53 S 14 00 46.68 -04 17 37.8 L C51
2014-07-19 19:30:04 S 14 00 46.71 -04 17 37.1 L C51
2014-07-19 21:04:40 S 14 00 44.08 -04 17 41.6 L C51
2014-07-19 22:39:29 S 14 00 41.54 -04 17 47.0 L C51
2014-07-20 00:14:05 S 14 00 38.99 -04 17 51.6 L C51
2014-07-20 01:48:53 S 14 00 36.44 -04 17 55.6 L C51
2014-07-20 03:23:42 S 14 00 33.91 -04 18 01.2 L C51
2014-07-20 06:33:07 S 14 00 28.877 -04 18 10.66 L C51
2014-07-20 09:42:32 S 14 00 23.91 -04 18 20.9 L C51
2014-12-04 05:26:02 S 10 39 39.32 +02 51 43.7 L C51
2014-12-04 08:35:27 S 10 39 36.638 +02 52 01.34 L C51
2014-12-04 11:44:41 S 10 39 34.13 +02 52 21.0 L C51
2014-12-04 13:19:18 S 10 39 32.83 +02 52 30.5 L C51
2014-12-04 14:53:56 S 10 39 31.51 +02 52 40.0 L C51
2014-12-04 16:28:32 S 10 39 30.13 +02 52 49.6 L C51
2014-12-04 18:03:10 S 10 39 28.76 +02 52 59.4 L C51
2014-12-04 19:37:47 S 10 39 27.44 +02 53 09.2 L C51
2014-12-04 22:47:12 S 10 39 24.63 +02 53 28.2 L C51
2014-12-05 01:56:26 S 10 39 21.85 +02 53 48.9 L C51
2015-01-18 09:41:13 C 09 38 16.744 +09 29 10.60 L F51
2015-01-18 10:00:43 C 09 38 14.974 +09 29 21.63 L F51
2015-01-18 10:20:13 C 09 38 13.205 +09 29 32.53 L F51
2015-01-18 10:39:41 C 09 38 11.441 +09 29 43.47 L F51
2015-01-19 10:38:25 C 09 36 03.69 +09 43 03.5 R G45
2015-01-19 10:46:29 C 09 36 02.90 +09 43 08.8 R G45
2015-01-19 11:00:10 C 09 36 01.70 +09 43 16.4 R G45
2015-01-19 11:06:01 C 09 36 01.15 +09 43 18.9 R G45
2015-01-20 10:23:02 C 09 33 57.55 +09 56 17.2 R G45
2015-01-20 10:37:04 C 09 33 56.28 +09 56 25.4 R G45
2015-01-20 10:49:05 C 09 33 55.15 +09 56 33.6 R G45
2015-01-20 10:56:46 C 09 33 54.50 +09 56 36.3 R G45
2015-01-21 06:58:26 C 09 32 08.56 +10 07 45.2 o 691
2015-01-21 07:27:39 C 09 32 05.96 +10 08 01.3 o 691
2015-01-21 07:56:49 C 09 32 03.26 +10 08 18.2 o 691
2015-01-22 13:19:22 C 09 29 27.093 +10 24 35.93 L F51
2015-01-22 13:37:05 C 09 29 25.489 +10 24 45.64 L F51
2015-01-22 14:12:31 C 09 29 22.276 +10 25 04.58 L F51
2015-01-24 09:49:06 C 09 25 32.18 +10 49 02.1 R G45
2015-01-24 10:01:08 C 09 25 31.14 +10 49 08.1 R G45
2015-01-24 10:15:00 C 09 25 29.94 +10 49 15.6 R G45