505657 (2014 SR339)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3038419333 ± 7.39e-09
Semi-major axis (a)1.2993972631 AU ± 1.94e-09
Inclination (i)29.79560738° ± 3.17e-06
Long. of Asc. Node (Ω)138.73679631° ± 6.75e-07
Arg. of Perihelion (ω)299.64741779° ± 2.68e-06
Mean Anomaly (M)123.31778987° ± 5.03e-06
Mean Motion (n)0.6654253698°/day ± 1.49e-09
Perihelion dist (q)0.90458589 AU ± 9.70e-09
Aphelion dist (Q)1.69420864 AU ± 9.93e-09
Orbital Period1.48119733 yr ± 3.31e-09
Physical Parameters
H (abs. magnitude)18.48
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.482″
Uncertainty0
Orbit TypeApollo
MOID0.035437 AU
Observations Used1501
Radar Obs Used6
Oppositions1
Arc Total2014-2024
First Observation Used2014-10-02
Last Observation Used2024-06-12
Observations (2286)
Date Type RA Dec Mag Band Observatory
2015-03-16 01:55:50 C 06 02 10.80 +47 41 14.0 q H45
2015-03-16 01:57:38 C 06 02 11.24 +47 41 17.0 q H45
2015-03-16 02:00:26 C 06 02 11.90 +47 41 22.2 q H45
2015-03-16 02:02:04 C 06 02 12.31 +47 41 26.1 q H45
2015-03-16 02:03:51 C 06 02 12.74 +47 41 28.7 q H45
2015-03-16 02:05:35 C 06 02 13.15 +47 41 32.6 q H45
2015-03-16 02:06:52 C 06 02 13.53 +47 41 34.7 q H45
2015-03-24 02:03:21 C 06 51 09.53 +52 21 49.9 q H45
2015-03-24 02:05:37 C 06 51 10.05 +52 21 52.3 q H45
2015-03-24 02:07:01 C 06 51 10.35 +52 21 53.5 q H45
2015-03-24 02:09:32 C 06 51 11.02 +52 21 56.7 q H45
2015-03-24 02:12:02 C 06 51 11.60 +52 21 59.0 q H45
2015-03-24 02:13:30 C 06 51 11.97 +52 22 00.3 q H45
2015-03-24 02:16:13 C 06 51 12.62 +52 22 03.4 q H45
2015-03-24 02:17:43 C 06 51 13.02 +52 22 04.6 q H45
2015-03-28 05:48:12 S 07 15 54.127 +53 48 02.34 L C51
2015-03-28 05:48:23 S 07 15 54.175 +53 48 02.12 L C51
2015-03-31 05:58:03 C 07 33 15.357 +54 30 42.79 L F51
2015-03-31 06:19:26 C 07 33 20.283 +54 30 52.93 L F51
2015-03-31 06:40:48 C 07 33 25.182 +54 31 03.14 L F51
2015-03-31 07:02:09 C 07 33 30.098 +54 31 12.95 L F51
2015-04-01 06:24:22 C 07 39 00.875 +54 41 47.07 L F51
2015-04-01 06:45:38 C 07 39 05.715 +54 41 55.71 L F51
2015-04-01 07:06:53 C 07 39 10.544 +54 42 04.27 L F51
2015-04-01 07:28:13 C 07 39 15.401 +54 42 12.52 L F51
2015-04-04 05:50:13 C 07 55 28.527 +55 05 31.54 L F51
2015-04-04 06:29:02 C 07 55 37.050 +55 05 40.77 L F51
2015-04-04 06:48:29 C 07 55 41.332 +55 05 45.22 L F51
2015-04-06 06:38:52 C 08 06 22.056 +55 15 00.25 L F51
2015-04-06 07:18:30 C 08 06 30.520 +55 15 05.20 L F51
2015-06-18 05:24:42 C 12 07 57.52 +36 54 23.4 o 291
2015-06-18 05:30:36 C 12 07 58.06 +36 54 17.8 o 291
2015-06-18 05:36:30 C 12 07 58.58 +36 54 12.6 o 291
2015-06-22 04:49:59 C 12 16 42.47 +35 26 04.4 o 291
2015-06-22 04:58:50 C 12 16 43.24 +35 25 56.5 o 291
2015-06-22 05:07:43 C 12 16 44.05 +35 25 47.5 o 291
2017-05-03 09:08:24 C 20 46 48.51 +08 30 27.4 o 691
2017-05-03 09:28:48 C 20 46 49.68 +08 30 33.9 o 691
2017-05-04 10:59:45 C 20 48 19.83 +08 38 38.6 o 291
2017-05-04 11:06:02 C 20 48 20.17 +08 38 41.0 o 291
2017-05-04 11:12:22 C 20 48 20.57 +08 38 43.6 o 291
2017-05-16 10:54:31 C 21 04 13.17 +10 04 28.2 o 291
2017-05-16 11:04:14 C 21 04 13.63 +10 04 30.5 o 291
2017-05-17 09:45:11 C 21 05 23.45 +10 10 43.6 o 291
2017-05-17 10:06:47 C 21 05 24.52 +10 10 49.2 o 291
2017-05-17 10:28:23 C 21 05 25.57 +10 10 55.0 o 291
2017-05-29 13:32:36 C 21 18 58.646 +11 20 01.49 L F51
2017-05-29 14:04:41 C 21 18 59.926 +11 20 07.79 L F51
2017-05-29 14:20:48 C 21 19 00.567 +11 20 10.91 L F51
2017-06-23 12:07:52 C 21 36 49.517 +11 46 53.28 L F51
Radar Observations (6)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2018-02-05 04:30:00 60957133 1 us 8560 -14 -14
2018-02-05 05:20:00 466941.9 2 Hz 8560 -14 -14
2018-02-06 01:50:00 57236485.342 2 us 8560 -14 -14
2018-02-07 05:30:00 54341231 1 us 8560 -14 -14
2018-02-08 04:40:00 53845832.89 2.5 us 8560 -14 -14
2018-02-09 00:16:00 54853140.46 1 us 2380 -1 -1
Station codes
-14 DSS-14 Goldstone (70-m) -1 Arecibo (305-m, 1963–2020)