90416 (2003 YK118)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4922047984 ± 1.01e-08
Semi-major axis (a)1.6951184872 AU ± 3.86e-09
Inclination (i)7.82654312° ± 2.20e-06
Long. of Asc. Node (Ω)326.74665095° ± 3.97e-06
Arg. of Perihelion (ω)233.27380575° ± 4.60e-06
Mean Anomaly (M)295.81980932° ± 4.37e-06
Mean Motion (n)0.4465932818°/day ± 1.53e-09
Perihelion dist (q)0.86077303 AU ± 1.72e-08
Aphelion dist (Q)2.52946394 AU ± 1.81e-08
Orbital Period2.20698860 yr ± 7.55e-09
NGA Modelr2
A2-1.78711427e-14 ± 5.92e-15 AU/d²
Physical Parameters
H (abs. magnitude)18.83
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.312″
Uncertainty0
Orbit TypeApollo
MOID0.001764 AU
Observations Used959
Radar Obs Used2
Oppositions12
Arc Total1993-2026
First Observation Used2002-09-13
Last Observation Used2026-01-06
Observations (992)
Date Type RA Dec Mag Band Observatory
2003-12-31 22:41:00 C 09 55 05.79 +30 04 42.3 r A17
2004-01-01 01:44:29 C 09 55 24.08 +30 04 06.0 r 170
2004-01-01 01:46:43 C 09 55 24.30 +30 04 05.4 r 170
2004-01-01 01:48:57 C 09 55 24.53 +30 04 04.9 r 170
2004-01-01 01:54:34 C 09 55 25.09 +30 04 03.5 r 170
2004-01-01 04:30:00 C 09 55 41.87 +30 03 24.2 c 932
2004-01-01 05:06:59 C 09 55 45.42 +30 03 16.7 c 932
2004-01-01 05:46:00 C 09 55 49.29 +30 03 08.6 c 932
2004-01-01 06:29:00 C 09 55 53.47 +30 03 00.0 c 932
2004-01-01 06:54:00 C 09 55 55.88 +30 02 53.7 c 932
2004-01-02 05:24:00 C 09 58 17.00 +29 57 20.6 c 932
2004-01-02 05:30:00 C 09 58 17.51 +29 57 19.6 c 932
2004-01-02 05:35:59 C 09 58 18.12 +29 57 18.1 c 932
2004-01-02 06:00:00 C 09 58 20.56 +29 57 12.5 c 932
2004-01-02 07:56:51 C 09 58 33.02 +29 56 45.3 17.9 c 704
2004-01-02 08:14:16 C 09 58 34.78 +29 56 41.9 18.3 c 704
2004-01-02 08:32:46 C 09 58 36.66 +29 56 36.9 18.1 c 704
2004-01-02 08:50:11 C 09 58 38.37 +29 56 32.5 18.2 c 704
2004-01-02 09:07:37 C 09 58 40.10 +29 56 28.0 17.9 c 704
2004-01-02 23:10:37 C 10 00 10.16 +29 52 36.2 r A17
2004-01-03 00:03:10 C 10 00 15.82 +29 52 25.5 r 170
2004-01-03 00:05:07 C 10 00 16.02 +29 52 25.2 r 170
2004-01-03 00:10:19 C 10 00 16.59 +29 52 24.2 r 170
2004-01-03 00:55:41 C 10 00 20.96 +29 52 10.3 r A17
2004-01-03 02:57:02 C 10 00 33.55 +29 51 42.4 o 620
2004-01-03 03:01:46 C 10 00 33.96 +29 51 41.2 o 620
2004-01-03 03:06:31 C 10 00 34.42 +29 51 39.2 o 620
2004-01-03 09:10:08 C 10 01 14.11 +29 50 00.8 o 719
2004-01-03 09:53:42 C 10 01 18.51 +29 49 48.5 o 719
2004-01-03 11:00:55 C 10 01 25.38 +29 49 30.2 o 719
2004-01-03 11:10:31 C 10 01 26.39 +29 49 27.3 o 719
2004-01-03 11:20:07 C 10 01 27.31 +29 49 24.0 o 719
2004-01-03 11:56:48 C 10 01 31.00 +29 49 13.6 o 719
2004-01-03 12:36:19 C 10 01 35.23 +29 49 01.5 o 719
2004-01-03 17:12:42 C 10 02 06.047 +29 48 08.29 r 413
2004-01-03 17:15:42 C 10 02 06.354 +29 48 07.57 r 413
2004-01-03 17:28:56 C 10 02 07.703 +29 48 03.72 r 413
2004-01-03 17:31:56 C 10 02 08.015 +29 48 02.73 r 413
2004-01-03 17:34:55 C 10 02 08.318 +29 48 02.04 r 413
2004-01-03 23:54:21 C 10 02 51.07 +29 45 42.3 r 176
2004-01-03 23:56:59 C 10 02 51.34 +29 45 41.7 r 176
2004-01-03 23:58:18 C 10 02 51.48 +29 45 41.4 r 176
2004-01-03 23:59:36 C 10 02 51.61 +29 45 41.1 r 176
2004-01-04 00:27:53 C 10 02 54.59 +29 45 33.0 r 941
2004-01-04 00:29:02 C 10 02 54.73 +29 45 32.7 r 941
2004-01-04 00:30:10 C 10 02 54.86 +29 45 32.4 r 941
2004-01-04 00:32:28 C 10 02 55.13 +29 45 31.7 r 941
2004-01-04 00:33:36 C 10 02 55.27 +29 45 31.4 r 941
2004-01-04 23:35:56 C 10 05 29.35 +29 38 24.4 r J87
2004-01-04 23:39:08 C 10 05 29.63 +29 38 24.1 r J87
Radar Observations (2)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2015-02-12 00:18:00 118466181.13 4 us 2380 -1 -1
2015-02-23 21:43:00 81209308.27 1 us 2380 -1 -1
Station codes
-1 Arecibo (305-m, 1963–2020)