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
2003-12-18 01:35:43 C 21 31 37.55 +26 18 40.3 19.3 c 704
2003-12-18 01:54:38 C 21 31 39.97 +26 18 35.9 20.0 c 704
2003-12-18 02:13:56 C 21 31 42.52 +26 18 32.9 19.6 c 704
2003-12-19 03:24:10 C 21 35 06.67 +26 14 14.9 r 649
2003-12-19 03:29:17 C 21 35 07.40 +26 14 13.4 r 649
2003-12-19 03:33:33 C 21 35 07.96 +26 14 12.7 r 649
2003-12-20 01:32:39 C 21 38 10.57 +26 10 16.1 r 448
2003-12-20 01:39:18 C 21 38 11.46 +26 10 15.2 r 448
2003-12-20 01:45:00 C 21 38 12.26 +26 10 13.2 r 448
2003-12-21 01:31:13 C 21 41 33.59 +26 05 29.0 19.1 c 704
2003-12-21 01:51:56 C 21 41 36.41 +26 05 24.5 19.7 c 704
2003-12-21 02:10:59 C 21 41 39.04 +26 05 19.2 19.4 c 704
2003-12-21 02:30:28 C 21 41 42.00 +26 05 16.1 19.7 c 704
2003-12-21 02:49:33 C 21 41 44.45 +26 05 11.0 19.5 c 704
2003-12-25 02:14:33 C 21 55 57.34 +25 41 12.6 r 448
2003-12-25 02:41:21 C 21 56 01.41 +25 41 04.4 r 448
2003-12-25 03:05:52 C 21 56 05.13 +25 40 55.7 r 448
2003-12-29 01:26:43 C 22 11 23.94 +25 07 34.2 r 448
2003-12-29 01:40:09 C 22 11 26.16 +25 07 27.6 r 448
2003-12-29 01:49:39 C 22 11 27.73 +25 07 24.1 r 448
2004-01-06 16:37:57 C 22 49 53.99 +23 03 44.2 o 461
2004-01-06 16:44:58 C 22 49 55.36 +23 03 38.1 o 461
2004-01-07 01:26:31 C 22 51 41.63 +22 56 32.5 r 448
2004-01-07 01:50:54 C 22 51 46.51 +22 56 09.9 r 448
2004-01-07 02:04:31 C 22 51 49.34 +22 55 59.7 r 448
2004-01-23 01:45:52 C 00 24 00.66 +13 33 04.5 r 448
2004-01-23 01:51:39 C 00 24 02.16 +13 32 51.3 r 448
2004-01-23 02:00:46 C 00 24 04.67 +13 32 32.1 r 448
2004-01-23 05:25:07 C 00 25 00.504 +13 25 05.18 o 568
2004-01-23 05:26:48 C 00 25 00.965 +13 25 01.37 o 568
2004-01-24 18:37:50 C 00 35 19.56 +11 59 25.0 r 170
2004-01-24 18:39:21 C 00 35 19.97 +11 59 21.1 r 170
2004-02-16 18:07:30 C 03 15 03.66 -14 45 32.3 d 104
2004-02-16 18:09:57 C 03 15 04.23 -14 45 41.0 d 104
2004-02-16 18:14:15 C 03 15 05.52 -14 45 53.2 d 104
2004-03-25 12:54:13 C 06 26 49.05 -34 17 35.9 c 474
2004-03-25 12:57:14 C 06 26 49.53 -34 17 37.3 c 474
2004-03-25 13:02:23 C 06 26 50.27 -34 17 38.4 c 474
2004-03-25 13:08:04 C 06 26 51.38 -34 17 41.2 c 474
2005-10-06 12:04:45 C 09 55 00.40 +22 10 57.9 r G96
2005-10-06 12:06:25 C 09 55 00.69 +22 10 54.4 r G96
2005-10-06 12:08:07 C 09 55 00.91 +22 10 51.7 r G96
2005-10-06 12:09:49 C 09 55 01.23 +22 10 48.4 r G96
2008-06-09 14:56:23 C 20 36 31.08 -25 14 22.1 o 474
2008-06-09 15:04:46 C 20 36 30.72 -25 14 20.1 o 474
2008-06-09 15:12:27 C 20 36 30.45 -25 14 17.7 o 474
2008-07-21 05:14:40 C 19 21 40.75 -19 30 11.6 o H55
2008-07-21 05:26:15 C 19 21 39.71 -19 30 07.2 o H55
2008-07-21 05:36:39 C 19 21 38.76 -19 30 02.9 o H55
2010-08-17 06:58:42 C 22 13 55.28 +33 19 22.3 o H21
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)