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
2018-05-03 05:22:52 C 11 29 36.38 +55 31 49.2 U G96
2018-05-03 05:30:34 C 11 29 36.89 +55 31 41.6 U G96
2018-05-03 05:38:16 C 11 29 37.48 +55 31 35.3 U G96
2018-05-03 05:45:56 C 11 29 37.99 +55 31 27.9 U G96
2018-05-19 06:12:55 C 11 56 03.891 +49 30 46.88 U F51
2018-05-19 06:31:13 C 11 56 05.054 +49 30 29.18 U F51
2018-05-19 07:07:54 C 11 56 07.435 +49 29 53.46 U F51
2018-05-20 06:02:47 C 11 57 41.00 +49 07 32.7 U G96
2018-05-20 06:10:20 C 11 57 41.44 +49 07 25.4 U G96
2018-05-20 06:17:52 C 11 57 41.99 +49 07 17.8 U G96
2018-05-20 06:25:25 C 11 57 42.48 +49 07 10.6 U G96
2018-05-20 06:33:17 C 11 57 43.502 +49 07 06.08 U F51
2018-05-20 06:52:49 C 11 57 44.797 +49 06 46.99 U F51
2018-05-20 07:12:20 C 11 57 46.081 +49 06 28.09 U F51
2018-06-16 06:40:09 C 12 42 00.574 +38 16 11.19 U F51
2018-06-16 06:55:21 C 12 42 01.589 +38 15 55.50 U F51
2018-06-16 07:10:29 C 12 42 02.594 +38 15 39.93 U F51
2018-06-16 07:25:40 C 12 42 03.596 +38 15 24.19 U F51
2018-07-06 04:25:12 C 13 15 16.31 +30 08 01.2 U G96
2018-07-06 04:32:45 C 13 15 16.88 +30 07 53.9 U G96
2018-07-06 04:40:20 C 13 15 17.29 +30 07 45.5 U G96
2018-07-06 04:47:53 C 13 15 17.82 +30 07 38.7 U G96
2020-05-28 13:36:41 C 21 47 16.741 +08 30 19.57 U F52
2020-05-28 13:53:36 C 21 47 17.730 +08 30 22.51 U F52
2020-05-28 14:10:31 C 21 47 18.715 +08 30 25.16 U F52
2020-05-28 14:27:29 C 21 47 19.699 +08 30 27.69 U F52
2020-06-22 13:07:09 C 22 20 25.985 +08 37 26.21 U F51
2020-06-22 13:25:24 C 22 20 26.843 +08 37 22.94 U F51
2020-06-22 13:43:41 C 22 20 27.701 +08 37 19.55 U F51
2020-06-22 14:02:08 C 22 20 28.564 +08 37 16.18 U F51
2020-06-26 13:52:52 C 22 25 08.261 +08 15 14.16 U F52
2020-06-26 14:25:30 C 22 25 09.717 +08 15 05.10 U F52
2020-07-18 08:27:33 C 22 46 32.67 +02 31 35.9 V 703
2020-07-18 08:34:07 C 22 46 32.75 +02 31 28.3 V 703
2020-07-18 08:40:42 C 22 46 33.00 +02 31 20.9 V 703
2020-07-18 08:47:17 C 22 46 33.20 +02 31 13.4 V 703
2020-07-18 13:11:49 C 22 46 41.622 +02 26 03.65 U F51
2020-07-18 13:30:00 C 22 46 42.142 +02 25 42.07 U F51
2020-07-18 13:48:17 C 22 46 42.662 +02 25 20.32 U F51
2020-07-18 14:06:38 C 22 46 43.187 +02 24 58.50 U F51
2020-07-20 17:34:35 C 22 48 22.279 +01 20 19.36 V P07
2020-07-20 19:04:11 C 22 48 24.677 +01 18 19.76 V P07
2020-07-20 20:34:57 C 22 48 27.098 +01 16 17.90 V P07
2020-07-20 21:02:12 C 22 48 27.799 +01 15 41.72 V P07
2020-07-22 12:17:36 C 22 49 39.264 +00 20 27.31 U F51
2020-07-22 12:36:19 C 22 49 39.727 +00 19 59.94 U F51
2020-07-22 12:55:30 C 22 49 40.197 +00 19 31.86 U F51
2020-07-22 13:14:42 C 22 49 40.670 +00 19 03.73 U F51
2020-07-28 00:14:43 C 22 53 09.93 -03 21 50.9 V 160
2020-07-28 00:20:37 C 22 53 10.05 -03 22 02.0 V 160
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)