438017 (2003 YO3)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3660736886 ± 2.51e-08
Semi-major axis (a)1.4496613036 AU ± 1.66e-09
Inclination (i)24.61078614° ± 6.49e-06
Long. of Asc. Node (Ω)291.35583575° ± 9.48e-06
Arg. of Perihelion (ω)168.75357221° ± 1.21e-05
Mean Anomaly (M)183.65254278° ± 4.51e-06
Mean Motion (n)0.5646930683°/day ± 9.68e-10
Perihelion dist (q)0.91897844 AU ± 3.64e-08
Aphelion dist (Q)1.98034416 AU ± 3.64e-08
Orbital Period1.74541948 yr ± 2.99e-09
Physical Parameters
H (abs. magnitude)18.54
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.365″
Uncertainty0
Orbit TypeApollo
MOID0.059623 AU
Observations Used195
Radar Obs Used1
Oppositions6
Arc Total2003-2018
First Observation Used2003-12-18
Last Observation Used2025-03-02
Observations (217)
Date Type RA Dec Mag Band Observatory
2010-08-17 07:08:06 C 22 13 54.38 +33 19 32.9 o H21
2010-08-17 07:15:48 C 22 13 53.54 +33 19 41.4 o H21
2010-08-26 06:01:05 C 21 50 49.30 +37 01 08.1 o H21
2010-08-26 06:13:14 C 21 50 47.83 +37 01 19.1 o H21
2010-08-26 06:25:12 C 21 50 46.34 +37 01 29.8 o H21
2010-08-26 06:30:54 C 21 50 45.66 +37 01 34.9 o H21
2010-08-26 06:32:30 C 21 50 45.74 +37 01 37.9 u 448
2010-08-26 07:04:13 C 21 50 41.72 +37 02 06.2 u 448
2010-08-26 07:30:00 C 21 50 38.67 +37 02 29.9 u 448
2010-09-25 03:34:51 C 20 24 12.18 +41 12 45.0 o H21
2010-09-25 03:43:02 C 20 24 11.38 +41 12 43.6 o H21
2010-09-25 03:51:32 C 20 24 10.55 +41 12 42.4 o H21
2010-12-31 17:51:40 C 22 03 25.95 +28 24 02.1 v 204
2010-12-31 17:56:37 C 22 03 26.87 +28 23 55.6 v 204
2010-12-31 18:01:41 C 22 03 27.83 +28 23 48.7 v 204
2011-01-01 19:34:36 C 22 08 28.19 +27 49 53.3 v 204
2011-01-01 19:40:42 C 22 08 29.40 +27 49 44.4 v 204
2011-01-01 19:47:16 C 22 08 30.70 +27 49 34.8 v 204
2011-01-01 19:53:28 C 22 08 31.93 +27 49 26.3 v 204
2011-01-01 19:59:04 C 22 08 33.03 +27 49 18.4 v 204
2011-01-02 23:36:18 C 22 14 10.96 +27 09 17.1 o H20
2011-01-02 23:41:19 C 22 14 11.91 +27 09 09.2 o H20
2011-01-02 23:46:15 C 22 14 12.87 +27 09 01.6 o H20
2011-01-02 23:51:10 C 22 14 13.91 +27 08 53.8 o H20
2011-01-05 00:01:28 C 22 24 33.85 +25 48 57.3 o H20
2011-01-05 00:07:08 C 22 24 35.09 +25 48 47.1 o H20
2011-01-05 00:12:47 C 22 24 36.31 +25 48 36.3 o H20
2011-01-05 00:18:23 C 22 24 37.48 +25 48 26.3 o H20
2011-01-16 02:25:35 C 23 35 48.73 +13 02 14.2 r G96
2011-01-16 02:34:40 C 23 35 51.54 +13 01 35.9 r G96
2011-01-16 02:52:48 C 23 35 57.15 +13 00 18.9 r G96
2011-03-06 10:12:36 C 05 47 51.08 -48 49 52.8 r E12
2011-03-06 10:33:16 C 05 47 54.66 -48 49 56.9 r E12
2013-05-05 08:55:19 C 18 36 34.90 -53 43 03.1 u 807
2013-05-05 09:05:15 C 18 36 34.38 -53 43 04.7 u 807
2013-05-05 09:14:55 C 18 36 33.87 -53 43 06.5 u 807
2015-06-12 06:32:43 C 20 45 48.02 -22 43 03.3 u 807
2015-06-12 06:48:27 C 20 45 47.46 -22 42 58.9 u 807
2015-06-12 07:03:41 C 20 45 46.90 -22 42 54.5 u 807
2015-06-13 12:48:07 C 20 44 41.253 -22 34 10.93 L F51
2015-06-13 13:04:25 C 20 44 40.582 -22 34 05.97 L F51
2015-06-13 13:36:59 C 20 44 39.275 -22 33 56.40 L F51
2015-06-15 11:31:37 C 20 42 48.464 -22 20 11.28 L F51
2015-06-15 11:47:50 C 20 42 47.748 -22 20 06.85 L F51
2015-06-15 12:04:01 C 20 42 47.027 -22 20 01.91 L F51
2015-06-15 12:20:16 C 20 42 46.306 -22 19 56.98 L F51
2015-06-26 13:02:13 C 20 28 20.776 -20 56 38.14 L F51
2015-06-26 13:18:03 C 20 28 19.713 -20 56 33.16 L F51
2015-06-26 13:33:53 C 20 28 18.619 -20 56 27.80 L F51
2015-06-26 13:49:41 C 20 28 17.542 -20 56 22.64 L F51
Radar Observations (1)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2018-01-09 19:04:00 93240171.09 4 us 2380 -1 -1
Station codes
-1 Arecibo (305-m, 1963–2020)