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
1997-10-16 18:24:57 C 19 06 09.80 -06 13 27.9 118
1997-10-17 18:05:49 C 19 07 53.18 -06 20 41.8 118
1997-10-18 18:43:26 C 19 09 43.31 -06 28 06.5 118
1997-10-19 10:28:13 C 19 10 55.33 -06 32 46.1 900
1997-10-19 10:39:02 C 19 10 56.17 -06 32 48.5 900
1997-10-20 19:14:05 C 19 13 28.54 -06 42 24.1 118
1997-10-20 19:18:53 C 19 13 28.91 -06 42 24.9 118
1997-10-21 10:18:59 C 19 14 40.78 -06 46 44.6 360
1997-10-21 10:23:00 C 19 14 41.14 -06 46 45.8 360
1997-10-23 10:33:29 C 19 18 38.96 -07 00 25.6 867
1997-10-23 10:38:29 C 19 18 39.38 -07 00 26.8 867
1997-10-23 10:43:59 C 19 18 39.83 -07 00 28.3 867
1997-10-23 10:45:31 C 19 18 39.82 -07 00 19.6 422
1997-10-23 10:47:11 C 19 18 39.96 -07 00 20.3 422
1997-10-23 10:55:42 C 19 18 40.48 -07 00 22.3 422
1997-10-26 10:01:30 C 19 24 51.74 -07 19 51.8 360
1997-10-26 10:05:30 C 19 24 52.10 -07 19 53.1 360
1997-10-26 11:37:14 C 19 25 00.35 -07 20 16.9 897
1997-10-26 11:51:22 C 19 25 01.52 -07 20 19.9 897
1997-10-26 12:06:20 C 19 25 02.86 -07 20 24.5 897
1997-11-01 10:45:53 C 19 38 39.90 -07 55 56.9 347
1997-11-01 11:11:29 C 19 38 42.40 -07 56 02.3 347
1997-11-05 09:46:29 C 19 48 37.20 -08 16 59.3 360
1997-11-05 09:50:44 C 19 48 37.70 -08 17 00.2 360
1997-11-06 08:55:24 C 19 51 09.29 -08 21 45.9 402
1997-11-06 08:56:23 C 19 51 09.38 -08 21 46.1 402
1997-11-06 08:57:23 C 19 51 09.50 -08 21 46.1 402
1997-11-06 10:39:35 C 19 51 20.65 -08 22 06.3 897
1997-11-06 10:44:04 C 19 51 21.11 -08 22 07.9 897
1997-11-06 11:00:44 C 19 51 22.91 -08 22 11.0 897
1997-11-08 02:01:44 C 19 55 45.52 -08 29 55.2 696
1997-11-08 02:06:19 C 19 55 45.82 -08 29 55.7 696
1997-11-08 02:08:57 C 19 55 46.12 -08 29 56.1 696
1997-11-09 09:46:55 C 19 59 24.17 -08 35 53.7 897
1997-11-09 09:52:35 C 19 59 24.83 -08 35 54.2 347
1997-11-09 09:52:39 C 19 59 24.87 -08 35 54.7 900
1997-11-09 09:56:00 C 19 59 25.31 -08 35 55.9 347
1997-11-09 09:59:06 C 19 59 25.60 -08 35 56.5 347
1997-11-09 10:03:25 C 19 59 26.06 -08 35 57.0 900
1997-11-09 11:06:29 C 19 59 33.29 -08 36 08.1 897
1997-11-10 17:47:02 C 20 03 09.57 -08 41 40.0 046
1997-11-10 17:48:38 C 20 03 09.76 -08 41 40.3 046
1997-11-10 17:50:15 C 20 03 09.95 -08 41 40.6 046
1997-11-11 16:31:24 C 20 05 52.77 -08 45 35.4 118
1997-11-11 16:37:43 C 20 05 53.52 -08 45 36.5 118
1997-11-14 18:14:16 C 20 14 58.42 -08 57 12.5 504
1997-11-14 18:14:54 C 20 14 58.51 -08 57 12.7 504
1997-11-14 18:16:24 C 20 14 58.69 -08 57 12.9 504
1997-11-14 18:19:09 C 20 14 59.02 -08 57 13.3 504
1997-11-14 18:20:11 C 20 14 59.17 -08 57 13.4 504
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)