103P

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2010-10-21 (JD 2455491.0)
Eccentricity (e)0.6950806879 ± 8.50e-07
Semi-major axis (a)3.4719838601 AU ± 1.01e-05
Inclination (i)13.61944472° ± 8.09e-06
Long. of Asc. Node (Ω)219.75855271° ± 1.72e-05
Arg. of Perihelion (ω)181.20579728° ± 2.65e-05
Mean Anomaly (M)358.96974617° ± 5.77e-06
Mean Motion (n)0.1523511475°/day ± 6.62e-07
Perihelion dist (q)1.05867493 AU ± 4.26e-06
Aphelion dist (Q)5.88529279 AU ± 1.73e-05
Orbital Period6.46943787 yr ± 2.81e-05
Physical Parameters
Diameter1.600 km
Rotation Period18.100 h
NGA Sets
NGA Modelg(r)
Set 1
Interval 1 2010-03-01 — 2010-09-01
A1-1.54957190e-08 AU/d² ± 1.66e-10
A24.13637886e-09 AU/d² ± 9.05e-11
A3-1.80570947e-09 AU/d² ± 1.45e-10
Set 2
Interval 1 2010-09-01 — 2010-10-28
A13.83863289e-09 AU/d² ± 1.55e-10
A2-4.38193650e-09 AU/d² ± 1.74e-10
A3-5.63848079e-10 AU/d² ± 1.28e-10
Set 3
Interval 1 2010-10-28 — 2011-01-01
A14.59554332e-09 AU/d² ± 2.37e-10
A25.74301617e-09 AU/d² ± 1.24e-10
A32.27234321e-09 AU/d² ± 1.04e-10
Set 4
Interval 1 2011-01-01 — 2011-06-01
A1-1.71641261e-08 AU/d² ± 1.49e-10
A2-7.23628355e-09 AU/d² ± 1.09e-10
A3-6.29889614e-10 AU/d² ± 8.91e-11
Set 5
Interval 1 1900-01-01 — 2100-01-01
S(R)-44.7 km ± 1.94e+01
S(T)258.1 km ± 2.51e+01
S(N)397.7 km ± 1.31e+01
Orbit Solution
SourceIAA
Solution Date2026-06-08
RMS Residual0.700″
Uncertainty0
Orbit TypeAmor
MOID0.065145 AU
Observations Used8892
Radar Obs Used6
Oppositions33
Arc Total1986-2025
First Observation Used1997-05-02
Last Observation Used2025-04-28
Observations (9766)
Date Type RA Dec Mag Band Observatory
1997-11-14 18:21:16 C 20 14 59.29 -08 57 13.7 504
1997-11-17 09:19:02 C 20 23 06.01 -09 05 51.7 897
1997-11-17 09:26:43 C 20 23 07.10 -09 05 52.8 897
1997-11-17 09:32:17 C 20 23 07.80 -09 05 53.8 897
1997-11-19 09:12:22 C 20 29 29.25 -09 11 36.8 402
1997-11-19 09:15:21 C 20 29 29.62 -09 11 37.3 402
1997-11-19 09:18:21 C 20 29 30.02 -09 11 37.6 402
1997-11-19 09:56:59 C 20 29 35.17 -09 11 41.7 360
1997-11-19 10:03:30 C 20 29 36.04 -09 11 42.4 360
1997-11-19 16:48:12 C 20 30 31.06 -09 12 30.3 118
1997-11-19 16:55:32 C 20 30 32.08 -09 12 30.1 118
1997-11-19 16:59:40 C 20 30 32.60 -09 12 31.0 118
1997-11-23 10:32:08 C 20 43 02.28 -09 20 56.5 897
1997-11-23 10:37:54 C 20 43 03.12 -09 20 56.5 347
1997-11-23 10:42:00 C 20 43 03.71 -09 20 57.8 347
1997-11-23 10:46:24 C 20 43 04.36 -09 20 57.6 347
1997-11-23 10:50:01 C 20 43 04.91 -09 20 57.8 897
1997-12-02 10:28:30 C 21 15 54.47 -09 29 20.0 897
1997-12-02 10:51:49 C 21 15 58.15 -09 29 20.5 897
1997-12-07 16:08:10 A 21 36 49.12 -09 25 31.3 056
1997-12-07 16:37:31 A 21 36 53.89 -09 25 32.1 056
1997-12-11 10:35:17 C 21 52 38.48 -09 18 23.7 897
1997-12-11 10:50:18 C 21 52 41.22 -09 18 20.5 897
1997-12-12 15:49:43 C 21 57 54.26 -09 15 17.6 118
1997-12-12 16:05:00 C 21 57 57.01 -09 15 15.9 118
1997-12-13 09:46:54 C 22 01 09.59 -09 13 08.9 347
1997-12-13 09:51:31 C 22 01 10.43 -09 13 08.4 347
1997-12-13 09:57:18 C 22 01 11.45 -09 13 07.7 347
1997-12-15 09:30:24 C 22 09 56.88 -09 06 45.1 897
1997-12-15 09:35:25 C 22 09 57.76 -09 06 44.4 897
1997-12-17 10:37:52 C 22 19 10.06 -08 58 47.9 422
1997-12-17 10:38:50 C 22 19 10.25 -08 58 47.5 422
1997-12-17 10:39:48 C 22 19 10.40 -08 58 47.4 422
1997-12-21 09:31:25 C 22 37 28.87 -08 40 24.6 347
1997-12-21 09:35:58 C 22 37 29.74 -08 40 23.7 347
1997-12-21 09:39:29 C 22 37 30.44 -08 40 22.9 347
1997-12-21 10:56:15 C 22 37 45.33 -08 40 05.7 897
1997-12-21 11:02:02 C 22 37 46.48 -08 40 04.4 897
1997-12-21 16:47:29 A 22 38 54.56 -08 38 47.8 056
1997-12-22 17:37:30 A 22 43 49.00 -08 33 02.8 056
1997-12-22 18:16:30 A 22 43 56.85 -08 32 54.1 056
1997-12-23 11:05:48 C 22 47 17.24 -08 28 35.9 422
1997-12-23 11:06:58 C 22 47 17.46 -08 28 35.8 422
1997-12-23 11:08:10 C 22 47 17.72 -08 28 35.5 422
1997-12-23 16:43:05 A 22 48 25.05 -08 27 24.6 056
1997-12-23 17:06:50 A 22 48 29.58 -08 27 16.9 056
1997-12-29 09:18:31 C 23 16 17.01 -07 47 57.9 900
1997-12-29 09:26:49 C 23 16 18.69 -07 47 55.5 900
1997-12-31 09:51:42 C 23 26 25.97 -07 31 27.6 897
1997-12-31 10:25:53 C 23 26 33.11 -07 31 15.3 897
Radar Observations (6)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2010-10-24 07:50:00 -35963.2427 0.5 Hz 2380 -1 -1
2010-10-24 08:02:00 123053086.64 4 us 2380 -1 -1
2010-10-25 07:34:00 124535088.24 1.5 us 2380 -1 -1
2010-10-26 09:26:00 126533148.82 2 us 2380 -1 -1
2010-10-27 07:40:00 128543233.13 3 us 2380 -1 -1
2010-10-29 09:34:00 133954458.1 3 us 2380 -1 -1
Station codes
-1 Arecibo (305-m, 1963–2020)