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
2021-02-25 11:59:56 C 14 36 16.27 +46 12 26.6 V T08
2021-02-25 12:04:36 C 14 36 16.24 +46 12 39.5 V T08
2021-02-25 12:08:39 C 14 36 16.21 +46 12 50.9 V T08
2021-02-25 12:16:37 C 14 36 16.11 +46 13 12.9 V T08
2021-02-26 08:08:36 C 14 36 14.64 +47 06 22.4 V 703
2021-02-26 08:16:27 C 14 36 14.53 +47 06 43.2 V 703
2021-02-26 08:24:18 C 14 36 14.46 +47 07 04.7 V 703
2021-02-26 08:32:09 C 14 36 14.37 +47 07 25.9 V 703
2021-03-01 00:02:08 C 14 35 38.96 +49 43 28.0 V A17
2021-03-01 00:13:26 C 14 35 38.74 +49 43 54.5 V A17
2021-03-01 00:24:46 C 14 35 38.48 +49 44 20.9 V A17
2021-03-02 09:32:53 C 14 35 02.09 +50 58 00.4 V 703
2021-03-02 09:40:37 C 14 35 01.93 +50 58 17.0 V 703
2021-03-02 09:48:21 C 14 35 01.66 +50 58 33.5 V 703
2021-03-02 09:56:05 C 14 35 01.42 +50 58 50.6 V 703
2021-03-02 10:20:06 C 14 35 00.92 +50 59 41.5 U I41
2021-03-02 10:25:01 C 14 35 00.77 +50 59 52.3 U I41
2021-03-02 10:49:39 C 14 34 59.98 +51 00 45.3 U I41
2021-03-02 10:55:54 C 14 34 59.80 +51 00 58.7 U I41
2021-03-03 10:45:28 C 14 34 25.81 +51 50 33.0 V G96
2021-03-03 10:53:01 C 14 34 25.54 +51 50 48.4 V G96
2021-03-03 11:00:36 C 14 34 25.27 +51 51 03.7 V G96
2021-03-03 11:08:10 C 14 34 24.99 +51 51 19.1 V G96
2021-03-03 14:44:55 C 14 34 18.913 +51 58 41.09 U F52
2021-03-03 14:58:44 C 14 34 18.394 +51 59 08.70 U F52
2021-03-03 15:12:36 C 14 34 17.864 +51 59 36.09 U F52
2021-03-03 15:26:23 C 14 34 17.349 +52 00 03.63 U F52
2021-03-04 15:06:40 C 14 33 36.556 +52 46 21.41 U F51
2021-03-04 15:15:32 C 14 33 36.183 +52 46 38.10 U F51
2021-03-04 15:24:25 C 14 33 35.814 +52 46 54.76 U F51
2021-03-04 15:33:19 C 14 33 35.442 +52 47 11.53 U F51
2021-03-05 14:44:45 C 14 32 49.740 +53 30 14.37 U F51
2021-03-05 14:56:49 C 14 32 49.185 +53 30 35.96 U F51
2021-03-05 15:20:59 C 14 32 48.070 +53 31 19.02 U F51
2021-03-06 09:03:57 C 14 32 10.67 +54 02 35.6 V 703
2021-03-06 09:11:40 C 14 32 10.32 +54 02 49.5 V 703
2021-03-06 09:19:25 C 14 32 10.04 +54 03 02.4 V 703
2021-03-06 09:27:09 C 14 32 09.63 +54 03 16.3 V 703
2021-03-07 00:16:19 C 14 31 34.44 +54 28 26.2 V K83
2021-03-07 00:19:28 C 14 31 34.24 +54 28 31.8 V K83
2021-03-07 00:22:38 C 14 31 34.06 +54 28 37.5 V K83
2021-03-13 11:19:34 C 14 23 08.99 +58 05 35.6 V T08
2021-03-13 11:22:13 C 14 23 08.77 +58 05 39.3 V T08
2021-03-13 11:27:32 C 14 23 08.38 +58 05 44.7 V T08
2021-03-13 11:28:51 C 14 23 08.29 +58 05 46.4 V T08
2021-03-15 12:11:38 C 14 19 43.34 +58 57 43.8 V T05
2021-03-15 12:28:05 C 14 19 41.96 +58 58 00.2 V T05
2021-03-15 12:35:31 C 14 19 41.34 +58 58 07.8 V T05
2021-03-15 12:43:35 C 14 19 40.71 +58 58 15.7 V T05
2021-03-15 12:45:33 C 14 19 40.54 +58 58 18.0 V T05
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)