54509 YORP (2000 PH5)

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.2299638514 ± 2.00e+00
Semi-major axis (a)1.0058563387 AU ± 3.00e+00
Inclination (i)1.59947613° ± 4.00e+00
Long. of Asc. Node (Ω)278.18541804° ± 5.00e+00
Arg. of Perihelion (ω)278.99868894° ± 6.00e+00
Mean Anomaly (M)130.15651893° ± 1.73e-04
Mean Motion (n)0.9770309931°/day ± 4.37e+00
Perihelion dist (q)0.77454574 AU ± 3.06e+00
Aphelion dist (Q)1.23716694 AU ± 4.20e+00
Orbital Period1.00879736 yr ± 4.51e+00
NGA Modelr2
A28.79457947e-07 AU/d²
Physical Parameters
H (abs. magnitude)22.66
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-04-27
RMS Residual0.478″
Uncertainty0
Orbit TypeApollo
MOID0.000494 AU
Observations Used515
Oppositions1
Arc Total2000-2005
First Observation Used2000-08-03
Last Observation Used2005-08-03
Observations (548)
Date Type RA Dec Mag Band Observatory
2001-07-26 00:44:13 C 15 52 37.26 +58 24 17.4 c 046
2001-07-26 00:52:17 C 15 53 19.22 +58 20 26.2 c 046
2001-07-26 00:52:39 C 15 53 21.20 +58 20 16.0 c 046
2001-07-26 00:53:40 C 15 53 26.73 +58 19 40.2 c 046
2001-07-26 00:54:02 C 15 53 28.35 +58 19 35.0 c 046
2001-07-26 00:54:26 C 15 53 30.52 +58 19 23.9 c 046
2001-07-26 00:54:52 C 15 53 32.71 +58 19 10.9 c 046
2001-07-26 00:55:28 C 15 53 35.79 +58 18 54.9 c 046
2001-07-26 00:55:52 C 15 53 37.91 +58 18 42.9 c 046
2001-07-26 00:56:18 C 15 53 40.18 +58 18 30.6 c 046
2001-07-26 00:56:44 C 15 53 42.31 +58 18 18.6 c 046
2001-07-26 00:57:05 C 15 53 44.28 +58 18 08.0 c 046
2001-07-26 01:09:59 C 15 54 51.10 +58 11 56.3 c 046
2001-07-26 01:10:24 C 15 54 53.17 +58 11 44.4 c 046
2001-07-26 01:11:16 C 15 54 57.72 +58 11 19.4 c 046
2001-07-26 01:11:35 C 15 54 59.35 +58 11 10.1 c 046
2001-07-26 01:12:51 C 15 55 06.11 +58 10 33.0 c 046
2001-07-26 01:16:14 C 15 55 23.35 +58 08 55.4 c 046
2001-07-26 01:17:31 C 15 55 30.09 +58 08 18.7 c 046
2001-07-26 01:17:51 C 15 55 31.75 +58 08 08.9 c 046
2001-07-26 01:18:10 C 15 55 33.40 +58 08 00.1 c 046
2001-07-26 01:18:33 C 15 55 35.43 +58 07 47.8 c 046
2001-07-26 01:19:54 C 15 55 42.32 +58 07 08.4 c 046
2001-07-26 01:20:16 C 15 55 44.24 +58 06 58.7 c 046
2001-07-26 02:38:10 C 16 02 43.55 +57 39 53.8 18.5 866
2001-07-26 02:39:09 C 16 02 48.55 +57 39 23.4 18.5 866
2001-07-26 02:40:10 C 16 02 53.22 +57 38 55.8 18.3 866
2001-07-26 02:41:09 C 16 02 58.15 +57 38 23.8 17.8 866
2001-07-26 12:40:12 C 16 45 35.32 +52 33 14.3 300
2001-07-26 12:41:30 C 16 45 39.76 +52 32 31.3 300
2001-07-26 12:42:46 C 16 45 43.97 +52 31 49.7 300
2001-07-26 12:44:02 C 16 45 48.28 +52 31 07.8 300
2001-07-26 12:58:39 C 16 46 37.48 +52 23 05.3 300
2001-07-26 12:59:55 C 16 46 41.71 +52 22 23.3 300
2001-07-26 13:02:27 C 16 46 50.14 +52 20 59.3 300
2001-07-26 13:03:43 C 16 46 54.40 +52 20 17.6 300
2001-07-26 20:30:21 C 17 11 01.09 +48 13 25.4 c 046
2001-07-26 20:31:40 C 17 11 04.59 +48 12 41.5 c 046
2001-07-26 20:32:51 C 17 11 07.76 +48 12 01.8 c 046
2001-07-26 20:33:59 C 17 11 10.73 +48 11 24.6 c 046
2001-07-26 20:36:11 C 17 11 16.64 +48 10 11.7 c 046
2001-07-26 20:36:41 C 17 11 17.92 +48 09 55.6 c 046
2001-07-26 20:37:10 C 17 11 19.23 +48 09 38.4 c 046
2001-07-26 20:37:40 C 17 11 20.54 +48 09 22.2 c 046
2001-07-26 20:38:25 C 17 11 22.52 +48 08 57.9 c 046
2001-07-26 21:01:52 C 17 12 33.70 +47 57 37.7 165
2001-07-26 21:02:33 C 17 12 35.48 +47 57 15.8 15.4 165
2001-07-26 21:04:34 C 17 12 40.64 +47 56 08.1 165
2001-07-27 21:08:13 C 18 01 18.30 +35 34 19.1 c 540
2001-07-27 21:09:19 C 18 01 19.77 +35 33 47.8 c 540
Radar Observations (5)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2001-07-27 01:54:00 -152234.612 5 Hz 8560 -14 -14
2001-07-27 08:01:00 13507054.547 10 us 8560 -14 -14
2001-07-28 05:00:00 15490726.314 1 us 8560 -14 -14
2004-07-27 01:13:00 14410506.25 0.3 us 2380 -1 -1
2004-07-28 01:55:00 16817885.86 0.3 us 2380 -1 -1
Station codes
-14 DSS-14 Goldstone (70-m) -1 Arecibo (305-m, 1963–2020)