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
2020-08-25 01:34:14 S 22 56 18.835 -40 33 54.47 V C57
2020-08-25 01:34:14 s 1 -176097.13 9 +37238.466 7000.0 C57
2020-08-25 01:54:14 S 22 56 19.070 -40 35 27.53 V C57
2020-08-25 01:54:14 s 1 -175185.66 2 +35460.086 4870.0 C57
2020-08-25 03:14:14 S 22 56 19.733 -40 41 27.06 V C57
2020-08-25 03:14:14 s 1 -171361.18 8 +28312.011 1840.0 C57
2020-08-25 05:04:14 S 22 56 20.743 -40 49 35.80 V C57
2020-08-25 05:04:14 s 1 -165608.85 3 +18404.352 1720.0 C57
2020-08-25 05:14:14 S 22 56 20.453 -40 50 22.60 V C57
2020-08-25 05:14:14 s 1 -165055.99 0 +17499.825 130.0 C57
2020-08-25 12:04:14 S 22 56 23.993 -41 21 22.54 V C57
2020-08-25 12:04:14 s 1 -137386.53 3 -19724.413 1560.0 C57
2020-08-25 12:14:14 S 22 56 23.758 -41 21 55.55 V C57
2020-08-25 12:14:14 s 1 -136573.60 6 -20624.140 1740.0 C57
2020-08-25 12:54:14 S 22 56 24.492 -41 25 09.41 V C57
2020-08-25 12:54:14 s 1 -133247.05 4 -24211.216 1390.0 C57
2020-09-11 04:36:06 C 22 39 24.05 -66 14 26.6 q X74
2020-09-11 04:56:06 C 22 39 22.50 -66 15 23.7 q X74
2020-09-11 05:16:09 C 22 39 20.78 -66 16 20.4 q X74
2020-09-22 08:55:19 S 22 16 50.41 -76 36 41.5 L C51
2020-09-22 12:03:38 S 22 16 30.52 -76 42 22.2 L C51
2020-09-22 13:37:53 S 22 16 20.69 -76 45 12.1 L C51
2020-09-22 15:11:57 S 22 16 10.81 -76 48 01.2 L C51
2020-09-22 16:46:12 S 22 16 00.72 -76 50 50.0 L C51
2020-09-22 18:20:16 S 22 15 50.806 -76 53 37.93 L C51
2020-09-22 19:54:31 S 22 15 40.65 -76 56 25.6 L C51
2020-09-22 21:28:35 S 22 15 30.58 -76 59 12.7 L C51
2020-09-22 23:02:50 S 22 15 20.52 -77 01 59.9 L C51
2020-09-25 21:39:20 S 22 07 18.338 -78 59 21.91 L C51
2021-01-13 14:36:21 C 13 16 03.10 -42 46 58.5 V T08
2021-01-13 14:41:00 C 13 16 03.56 -42 46 39.7 V T08
2021-01-13 14:49:38 C 13 16 04.50 -42 46 03.9 V T08
2021-01-13 15:06:13 C 13 16 06.54 -42 44 56.1 V T08
2021-01-17 14:28:23 C 13 28 21.78 -35 35 58.7 V T08
2021-01-17 14:31:02 C 13 28 22.06 -35 35 46.2 V T08
2021-01-17 14:39:40 C 13 28 23.07 -35 35 04.6 V T08
2021-01-17 14:56:05 C 13 28 24.95 -35 33 44.5 V T08
2021-01-22 08:50:27 S 13 42 12.374 -25 26 01.72 L C51
2021-01-22 11:58:46 S 13 42 34.409 -25 07 52.97 L C51
2021-01-22 15:06:10 S 13 42 56.17 -24 49 48.2 L C51
2021-01-22 16:40:15 S 13 43 07.10 -24 40 40.9 L C51
2021-01-22 16:40:25 S 13 43 07.14 -24 40 39.5 L C51
2021-01-22 18:14:30 S 13 43 18.07 -24 31 31.1 L C51
2021-01-22 19:48:33 S 13 43 28.98 -24 22 22.0 L C51
2021-01-22 21:22:38 S 13 43 39.89 -24 13 11.9 L C51
2021-01-22 22:56:41 S 13 43 50.78 -24 04 00.5 L C51
2021-01-23 02:05:01 S 13 44 12.550 -23 45 32.90 L C51
2021-01-30 12:50:02 C 14 03 24.56 -04 50 17.3 V T08
2021-01-30 12:52:41 C 14 03 24.82 -04 49 59.4 V T08
2021-01-30 12:56:40 C 14 03 25.17 -04 49 33.6 V T08
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)