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
2000-08-03 03:52:33 C 17 38 49.52 -01 16 41.6 17.2 c 704
2000-08-03 04:13:04 C 17 38 59.56 -01 17 46.2 17.5 c 704
2000-08-03 04:54:27 C 17 39 19.76 -01 19 56.5 17.8 c 704
2000-08-03 05:14:59 C 17 39 29.75 -01 21 00.6 17.8 c 704
2000-08-04 03:22:47 C 17 50 34.82 -02 25 31.0 18.0 c 704
2000-08-04 03:42:47 C 17 50 43.12 -02 26 24.3 17.7 c 704
2000-08-04 04:22:48 C 17 50 59.73 -02 28 11.7 18.2 c 704
2000-08-04 04:42:48 C 17 51 08.00 -02 29 05.1 18.3 c 704
2000-08-04 22:36:50 C 17 58 50.47 -03 14 48.8 611
2000-08-04 22:38:14 C 17 58 50.96 -03 14 53.0 611
2000-08-05 04:21:40 C 18 01 12.29 -03 27 32.6 z 711
2000-08-05 04:28:18 C 18 01 14.64 -03 27 47.8 z 711
2000-08-05 04:33:50 C 18 01 16.55 -03 28 00.6 z 711
2000-08-06 08:25:09 C 18 11 29.89 -04 23 15.1 c 474
2000-08-06 12:03:50 C 18 12 35.68 -04 30 12.8 c 474
2000-08-06 12:09:00 C 18 12 37.25 -04 30 23.2 c 474
2000-08-06 12:12:10 C 18 12 38.22 -04 30 28.7 c 474
2000-08-06 12:57:27 C 18 12 53.34 -04 32 24.2 422
2000-08-06 21:00:40 C 18 15 30.78 -04 50 26.4 118
2000-08-06 21:06:31 C 18 15 32.64 -04 50 36.4 118
2000-08-06 21:10:22 C 18 15 33.83 -04 50 42.3 118
2000-08-07 11:11:09 C 18 19 47.59 -05 11 11.6 c 474
2000-08-07 11:18:35 C 18 19 49.58 -05 11 23.4 c 474
2000-08-07 11:20:49 C 18 19 50.17 -05 11 27.3 c 474
2000-08-07 14:38:49 C 18 20 43.36 -05 16 46.6 c 474
2000-08-07 14:41:20 C 18 20 44.11 -05 16 50.1 c 474
2000-08-07 14:44:09 C 18 20 44.89 -05 16 54.6 c 474
2000-08-07 14:45:40 C 18 20 45.28 -05 16 56.8 c 474
2000-08-07 20:14:29 C 18 22 25.54 -05 29 11.3 587
2000-08-07 20:22:39 C 18 22 27.56 -05 29 24.0 587
2000-08-10 14:07:29 C 18 38 07.20 -06 53 54.7 413
2000-08-10 14:09:21 C 18 38 07.54 -06 53 56.5 413
2000-08-26 12:03:42 C 19 25 21.73 -10 41 07.8 413
2000-08-26 12:13:17 C 19 25 22.38 -10 41 10.8 413
2000-09-02 12:41:53 C 19 38 36.62 -11 23 58.1 413
2000-09-02 12:54:29 C 19 38 37.40 -11 24 00.2 413
2000-09-02 12:57:47 C 19 38 37.61 -11 24 00.9 413
2001-07-25 04:37:05 C 13 43 06.54 +64 04 44.4 c 699
2001-07-25 04:37:52 C 13 43 11.93 +64 04 39.1 c 699
2001-07-25 04:38:40 C 13 43 17.29 +64 04 34.8 c 699
2001-07-25 04:39:25 C 13 43 22.72 +64 04 30.4 c 699
2001-07-25 04:47:34 C 13 44 19.38 +64 03 43.2 c 699
2001-07-25 04:48:20 C 13 44 24.80 +64 03 38.2 c 699
2001-07-25 04:49:08 C 13 44 30.13 +64 03 33.5 c 699
2001-07-25 04:49:54 C 13 44 35.55 +64 03 29.2 c 699
2001-07-25 04:56:54 C 13 45 24.45 +64 02 45.7 c 699
2001-07-25 04:57:42 C 13 45 29.78 +64 02 41.2 c 699
2001-07-25 04:58:34 C 13 45 35.92 +64 02 35.4 c 699
2001-07-25 04:59:19 C 13 45 41.32 +64 02 30.4 c 699
2001-07-25 05:04:29 C 13 46 17.20 +64 01 58.3 c 699
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)