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
2018-02-08 17:51:44 C 05 44 57.52 +07 20 28.4 q C97
2018-02-08 17:54:35 C 05 44 58.69 +07 21 42.4 q C97
2018-02-08 17:57:41 C 05 44 59.98 +07 23 05.0 q C97
2018-02-08 17:58:37 C 05 45 00.35 +07 23 29.6 q C97
2018-02-08 18:46:09 C 05 45 26.79 +07 43 03.0 U K74
2018-02-08 18:47:32 C 05 45 27.37 +07 43 39.2 U K74
2018-02-08 18:49:11 C 05 45 28.05 +07 44 21.9 U K74
2018-02-08 18:50:27 C 05 45 28.58 +07 44 54.9 U K74
2018-02-08 18:51:25 C 05 45 28.99 +07 45 20.3 U K74
2018-02-08 18:52:24 C 05 45 29.40 +07 45 45.7 U K74
2018-02-08 18:53:21 C 05 45 29.78 +07 46 11.1 U K74
2018-02-08 18:54:20 C 05 45 30.20 +07 46 36.4 U K74
2018-02-08 18:55:07 C 05 45 30.51 +07 46 56.5 U K74
2018-02-08 22:10:24 C 05 46 51.04 +09 11 24.2 U K65
2018-02-08 22:22:24 C 05 46 56.05 +09 16 32.8 U K65
2018-02-08 22:34:33 C 05 47 01.15 +09 21 45.1 U K65
2018-02-08 22:46:43 C 05 47 06.26 +09 26 57.2 U K65
2018-02-08 22:58:28 C 05 47 11.22 +09 31 59.3 U K65
2018-02-09 03:50:30 C 05 49 26.87 +11 36 51.0 q V16
2018-02-09 04:07:05 C 05 49 33.54 +11 43 50.2 q V16
2018-02-09 04:33:06 C 05 49 44.10 +11 54 47.9 q V16
2018-02-09 05:35:33 C 05 50 09.50 +12 21 00.2 q V16
2018-02-10 02:11:13 C 05 59 26.12 +20 35 58.0 q V16
2018-02-10 02:56:35 C 05 59 44.59 +20 53 12.9 q V16
2018-02-10 03:42:52 C 06 00 03.25 +21 10 42.0 q V16
2018-02-10 04:28:31 C 06 00 21.66 +21 27 50.0 q V16
2018-02-10 04:56:34 C 06 00 32.97 +21 38 18.2 q V16
2018-02-10 05:14:02 C 06 00 40.07 +21 44 48.2 q V16
2018-02-10 19:08:48 C 06 06 54.07 +26 42 12.3 U K38
2018-02-10 19:15:38 C 06 06 56.88 +26 44 32.3 U K38
2018-02-10 19:22:17 C 06 06 59.60 +26 46 48.5 U K38
2018-02-10 19:30:12 C 06 07 02.85 +26 49 30.2 U K38
2018-02-10 20:08:16 C 06 07 18.13 +27 02 29.7 q 160
2018-02-10 20:10:17 C 06 07 18.94 +27 03 10.6 q 160
2018-02-10 20:12:20 C 06 07 19.80 +27 03 52.2 q 160
2018-02-10 20:20:26 C 06 07 24.33 +27 06 43.8 q 006
2018-02-10 20:21:44 C 06 07 24.83 +27 07 09.7 q 006
2018-02-10 20:22:31 C 06 07 25.17 +27 07 25.9 q 006
2018-02-10 20:23:32 C 06 07 25.58 +27 07 46.3 q 006
2018-02-10 20:24:32 C 06 07 26.00 +27 08 06.9 q 006
2018-02-10 20:25:33 C 06 07 26.41 +27 08 27.3 q 006
2018-02-10 20:26:34 C 06 07 26.80 +27 08 48.0 q 006
2018-02-10 20:27:39 C 06 07 27.26 +27 09 09.7 q 006
2018-02-11 11:17:22 C 06 13 49.61 +31 53 55.5 U T05
2018-02-11 11:43:16 C 06 14 00.48 +32 01 37.5 U T05
2018-02-11 11:55:01 C 06 14 05.45 +32 05 06.4 U T05
2018-02-11 12:14:04 C 06 14 13.56 +32 10 44.4 U T05
2018-02-11 16:28:50 C 06 16 15.85 +33 26 37.0 q C97
2018-02-11 16:30:46 C 06 16 16.80 +33 27 13.1 q C97
2018-02-11 16:32:40 C 06 16 17.53 +33 27 45.1 q C97
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)