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
2018-03-17 09:21:29 C 09 52 56.85 +68 25 53.8 U T05
2018-03-17 09:24:08 C 09 52 57.21 +68 25 53.3 U T05
2018-03-17 09:49:51 C 09 53 00.05 +68 25 44.6 U T05
2018-03-17 10:02:40 C 09 53 01.49 +68 25 39.9 U T05
2018-03-29 04:11:13 C 10 24 09.16 +66 14 54.3 o 695
2018-03-29 04:18:52 C 10 24 09.86 +66 14 50.2 o 695
2018-03-29 04:26:32 C 10 24 10.53 +66 14 45.8 o 695
2018-04-05 06:11:26 C 10 39 21.74 +64 28 58.5 U 703
2018-04-05 06:19:08 C 10 39 22.33 +64 28 52.9 U 703
2018-04-05 06:26:49 C 10 39 22.86 +64 28 48.6 U 703
2018-04-08 14:26:15 S 10 46 00.36 +63 33 30.9 L C51
2018-04-08 17:34:45 S 10 46 15.64 +63 31 17.5 L C51
2018-04-08 20:43:16 S 10 46 30.80 +63 29 04.7 L C51
2018-04-08 23:51:45 S 10 46 45.97 +63 26 50.3 L C51
2018-04-09 02:59:31 S 10 47 01.070 +63 24 37.22 L C51
2018-04-09 06:08:46 S 10 47 16.31 +63 22 21.3 L C51
2018-04-09 07:43:01 S 10 47 23.86 +63 21 14.1 L C51
2018-04-09 09:17:04 S 10 47 31.33 +63 20 05.8 L C51
2018-04-09 09:17:15 S 10 47 31.26 +63 20 06.1 L C51
2018-04-09 10:51:20 S 10 47 38.86 +63 18 59.8 L C51
2018-04-09 12:24:51 S 10 47 46.416 +63 17 52.48 L C51
2018-04-09 12:25:02 S 10 47 46.27 +63 17 51.4 L C51
2018-04-09 13:59:50 S 10 47 53.998 +63 16 43.86 L C51
2018-04-09 15:34:05 S 10 48 01.48 +63 15 36.2 L C51
2018-04-09 17:08:19 S 10 48 08.92 +63 14 28.2 L C51
2018-04-09 18:42:34 S 10 48 16.61 +63 13 22.3 L C51
2018-04-09 20:16:50 S 10 48 23.99 +63 12 12.2 L C51
2018-04-09 21:51:05 S 10 48 31.71 +63 11 03.4 L C51
2018-04-09 23:25:20 S 10 48 39.08 +63 09 56.4 L C51
2018-04-10 00:59:35 S 10 48 46.46 +63 08 48.5 L C51
2018-04-10 04:07:21 S 10 49 01.44 +63 06 32.8 L C51
2018-04-10 05:42:09 S 10 49 08.87 +63 05 23.6 L C51
2018-04-10 05:42:20 S 10 49 08.87 +63 05 23.5 L C51
2018-04-10 07:09:01 C 10 49 14.35 +63 04 30.1 t 673
2018-04-10 07:14:51 C 10 49 14.83 +63 04 25.9 t 673
2018-04-10 07:16:24 S 10 49 16.40 +63 04 16.2 L C51
2018-04-10 07:22:23 C 10 49 15.41 +63 04 20.0 t 673
2018-04-10 07:31:58 C 10 49 16.18 +63 04 13.4 t 673
2018-04-10 08:50:39 S 10 49 23.84 +63 03 07.0 L C51
2018-04-10 10:24:55 S 10 49 31.37 +63 01 58.5 L C51
2018-04-10 13:33:24 S 10 49 46.28 +62 59 40.9 L C51
2018-04-10 15:07:39 S 10 49 53.683 +62 58 32.30 L C51
2018-04-10 18:16:09 S 10 50 08.53 +62 56 15.1 L C51
2018-04-10 21:24:40 S 10 50 23.44 +62 53 57.4 L C51
2018-04-11 00:33:09 S 10 50 38.23 +62 51 38.5 L C51
2018-04-11 03:40:56 S 10 50 52.96 +62 49 21.8 L C51
2018-04-11 06:49:58 S 10 51 07.79 +62 47 02.1 L C51
2018-04-15 06:20:57 C 10 58 28.05 +61 35 01.3 U 703
2018-04-15 06:36:25 C 10 58 29.20 +61 34 48.3 U 703
2018-04-15 06:44:10 C 10 58 29.56 +61 34 42.9 U 703
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)