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
1986-03-15 13:37:16 11 25 26.52 -07 44 26.7 q 260
1986-03-15 14:14:47 A 11 25 25.15 -07 44 15.6 413
1986-03-15 14:52:16 11 25 23.46 -07 44 02.5 q 260
1986-03-17 16:18:29 A 11 23 26.88 -07 27 42.7 413
1986-03-20 14:33:57 A 11 20 45.41 -07 04 21.9 413
1986-04-04 03:03:55 A 11 09 13.39 -05 11 29.2 801
1986-04-05 03:50:30 A 11 08 32.84 -05 03 52.1 801
1986-04-05 04:56:23 A 11 08 30.96 -05 03 31.3 675
1986-04-05 05:03:23 A 11 08 30.75 -05 03 28.7 675
1986-04-05 05:13:12 A 11 08 30.50 -05 03 26.0 675
1986-04-08 03:44:11 A 11 06 41.19 -04 42 22.9 675
1986-04-08 03:51:47 A 11 06 40.99 -04 42 20.5 675
1986-04-08 04:05:59 A 11 06 40.64 -04 42 16.4 675
1986-05-10 03:47:23 A 10 58 11.07 -01 59 12.5 691
1986-05-10 04:18:15 A 10 58 11.11 -01 59 08.3 691
1986-05-10 04:44:03 A 10 58 11.16 -01 59 04.9 691
1986-05-12 02:08:31 A 10 58 17.95 -01 53 34.6 801
1986-06-07 03:47:25 A 11 05 31.14 -01 23 08.0 691
1986-06-07 04:02:51 A 11 05 31.41 -01 23 08.9 691
1986-06-07 05:21:41 A 11 05 32.86 -01 23 09.9 691
1991-07-12 07:40:43 A 01 15 30.92 +21 36 55.9 801
1991-07-12 07:46:22 A 01 15 32.01 +21 37 02.3 801
1991-07-12 07:53:44 A 01 15 33.41 +21 37 10.7 801
1991-07-12 07:56:32 A 01 15 33.95 +21 37 13.8 801
1991-07-12 15:50:51 A 01 17 08.39 +21 46 18.2 474
1991-07-12 16:08:11 A 01 17 11.96 +21 46 38.7 474
1991-07-13 07:47:07 A 01 20 20.68 +22 03 57.7 801
1991-07-13 07:52:00 A 01 20 21.64 +22 04 03.2 801
1991-07-13 07:56:24 A 01 20 22.53 +22 04 08.1 801
1991-07-14 16:19:30 A 01 27 00.56 +22 40 07.1 372
1991-07-14 16:25:01 A 01 27 01.62 +22 40 12.7 372
1991-07-14 16:36:35 A 01 27 04.16 +22 40 26.5 372
1991-07-15 07:30:16 A 01 30 10.12 +22 56 47.7 801
1991-07-15 07:32:44 A 01 30 10.63 +22 56 50.5 801
1991-07-16 08:09:02 A 01 35 22.75 +23 23 38.6 801
1991-07-16 08:10:53 A 01 35 23.15 +23 23 40.9 801
1991-07-23 09:27:29 A 02 13 45.79 +26 15 43.4 657
1991-07-23 09:30:00 A 02 13 46.35 +26 15 45.7 657
1991-08-02 16:58:59 A 03 17 20.08 +29 21 48.9 372
1991-08-06 08:40:22 A 03 41 24.69 +30 00 39.0 801
1991-08-06 09:53:51 A 03 41 45.29 +30 01 01.8 657
1991-08-06 09:55:18 A 03 41 45.65 +30 01 02.4 657
1991-08-07 08:35:55 A 03 48 03.78 +30 08 22.5 801
1991-08-07 22:56:00 A 03 52 03.23 +30 12 21.0 056
1991-08-07 23:35:00 A 03 52 14.57 +30 12 31.5 056
1991-08-10 22:34:00 A 04 12 05.93 +30 25 24.1 056
1991-08-10 23:39:59 A 04 12 24.51 +30 25 35.7 056
1991-08-11 02:08:58 A 04 13 06.44 +30 25 53.4 098
1991-08-11 02:50:04 A 04 13 17.39 +30 25 56.6 098
1991-08-12 01:38:25 A 04 19 41.04 +30 27 26.9 098
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)