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
1998-01-28 11:13:33 C 01 51 25.85 -01 52 02.8 422
1998-01-31 10:07:52 C 02 06 11.99 -01 09 35.0 897
1998-01-31 10:31:22 C 02 06 16.77 -01 09 20.9 897
1998-01-31 10:44:36 C 02 06 19.50 -01 09 12.9 347
1998-01-31 10:49:09 C 02 06 20.46 -01 09 10.0 347
1998-01-31 10:53:09 C 02 06 21.22 -01 09 07.0 347
1998-01-31 11:00:50 C 02 06 22.82 -01 09 03.0 355
1998-01-31 11:02:11 C 02 06 23.12 -01 09 01.8 355
1998-01-31 11:04:13 C 02 06 23.54 -01 09 00.4 355
1998-01-31 18:15:15 C 02 07 52.84 -01 04 41.1 605
1998-01-31 18:39:15 C 02 07 57.75 -01 04 27.3 605
1998-02-01 10:52:38 C 02 11 17.44 -00 54 29.6 422
1998-02-01 10:53:55 C 02 11 17.68 -00 54 28.8 422
1998-02-01 10:55:10 C 02 11 17.93 -00 54 28.1 422
1998-02-05 19:18:02 C 02 32 24.43 +00 07 53.9 046
1998-02-05 19:19:22 C 02 32 24.67 +00 07 54.8 046
1998-02-05 19:21:14 C 02 32 25.07 +00 07 55.7 046
1998-02-06 17:19:54 C 02 36 46.86 +00 20 59.3 118
1998-02-06 17:25:52 C 02 36 48.06 +00 21 02.9 118
1998-02-07 18:52:25 C 02 41 48.44 +00 36 04.5 118
1998-02-07 18:54:56 C 02 41 48.93 +00 36 06.3 118
1998-02-07 18:57:24 C 02 41 49.41 +00 36 07.7 118
1998-02-08 11:05:01 C 02 44 58.62 +00 45 37.9 900
1998-02-08 11:15:49 C 02 45 00.67 +00 45 43.7 900
1998-02-09 10:48:31 C 02 49 35.09 +00 59 28.5 347
1998-02-09 10:55:16 C 02 49 36.35 +00 59 33.1 347
1998-02-09 11:03:04 C 02 49 37.87 +00 59 37.3 347
1998-02-13 19:00:22 C 03 09 22.65 +01 58 58.6 470
1998-02-13 19:10:16 C 03 09 24.31 +01 59 04.0 470
1998-02-17 10:35:46 C 03 25 26.03 +02 47 06.5 422
1998-02-17 10:37:03 C 03 25 26.22 +02 47 06.1 422
1998-02-17 10:38:21 C 03 25 26.46 +02 47 07.9 422
1998-02-17 10:40:32 C 03 25 26.86 +02 47 08.3 422
1998-02-17 10:43:44 C 03 25 27.45 +02 47 10.3 422
1998-02-17 10:45:26 C 03 25 27.74 +02 47 10.4 422
1998-02-18 11:39:07 C 03 29 55.68 +03 00 15.6 347
1998-02-18 11:42:45 C 03 29 56.41 +03 00 16.6 347
1998-02-18 19:16:38 C 03 31 17.41 +03 04 15.2 470
1998-02-18 19:21:35 C 03 31 18.25 +03 04 17.5 470
1998-02-19 09:42:33 C 03 33 51.29 +03 11 50.2 897
1998-02-19 09:56:31 C 03 33 53.64 +03 11 56.6 897
1998-02-19 18:56:26 C 03 35 29.00 +03 16 36.7 504
1998-02-19 18:58:03 C 03 35 29.28 +03 16 37.1 504
1998-02-19 19:00:50 C 03 35 29.80 +03 16 38.6 504
1998-02-19 19:01:30 C 03 35 29.91 +03 16 39.3 504
1998-02-20 19:38:48 C 03 39 49.11 +03 29 18.1 118
1998-02-20 19:41:25 C 03 39 49.56 +03 29 19.4 118
1998-02-20 19:44:08 C 03 39 50.05 +03 29 20.9 118
1998-02-21 18:28:04 C 03 43 47.24 +03 40 51.2 118
1998-02-21 18:33:51 C 03 43 48.23 +03 40 54.5 118
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)