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
2021-05-19 06:16:06 C 12 59 04.261 +50 18 33.63 U F51
2021-05-19 06:34:42 C 12 59 04.430 +50 18 15.35 U F51
2021-05-19 06:53:16 C 12 59 04.618 +50 17 57.27 U F51
2021-05-19 07:11:51 C 12 59 04.812 +50 17 38.91 U F51
2021-06-05 04:34:35 C 13 08 58.06 +43 18 54.7 V G96
2021-06-05 04:41:35 C 13 08 58.23 +43 18 47.2 V G96
2021-06-05 04:48:34 C 13 08 58.48 +43 18 39.9 V G96
2021-06-05 04:56:54 C 13 08 58.71 +43 18 30.0 V G96
2021-06-10 04:14:48 C 13 13 17.86 +41 10 37.4 V G96
2021-06-10 04:22:23 C 13 13 18.14 +41 10 29.4 V G96
2021-06-10 04:29:56 C 13 13 18.39 +41 10 21.3 V G96
2021-06-10 04:37:29 C 13 13 18.67 +41 10 12.8 V G96
2023-06-23 09:35:36 C 23 03 17.168 +05 54 09.61 V G96
2023-06-23 09:43:02 C 23 03 17.748 +05 54 08.14 V G96
2023-06-23 09:50:28 C 23 03 18.342 +05 54 06.95 V G96
2023-06-23 09:57:54 C 23 03 18.882 +05 54 04.90 V G96
2023-06-24 09:26:02 C 23 05 14.064 +05 48 56.02 V G96
2023-06-24 09:32:49 C 23 05 14.608 +05 48 54.65 V G96
2023-06-24 09:39:38 C 23 05 15.148 +05 48 52.88 V G96
2023-06-24 09:46:25 C 23 05 15.695 +05 48 51.44 V G96
2023-07-15 13:01:11 C 23 49 53.794 +01 24 51.85 X F52
2023-07-15 13:37:59 C 23 49 57.213 +01 24 18.58 X F52
2023-07-15 13:56:29 C 23 49 58.925 +01 24 01.96 X F52
2023-07-25 13:58:32 C 00 14 41.095 -03 17 07.46 X F51
2023-07-25 14:12:54 C 00 14 42.619 -03 17 28.67 X F51
2023-07-25 14:27:16 C 00 14 44.144 -03 17 49.83 X F51
2023-07-25 14:41:39 C 00 14 45.665 -03 18 10.99 X F51
2023-07-29 13:59:03 C 00 25 39.392 -05 51 50.36 X F52
2023-07-29 14:10:00 C 00 25 40.632 -05 52 09.63 X F52
2023-07-29 14:20:57 C 00 25 41.882 -05 52 28.93 X F52
2023-07-29 14:31:54 C 00 25 43.125 -05 52 48.16 X F52
2023-08-08 03:11:45 C 00 55 32.719 -14 02 59.39 V M22
2023-08-08 03:16:19 C 00 55 33.362 -14 03 11.05 V M22
2023-08-08 03:28:50 C 00 55 35.107 -14 03 42.77 V M22
2023-08-08 03:45:51 C 00 55 37.452 -14 04 26.26 V M22
2023-08-14 07:35:29 C 01 18 40.697 -21 00 57.89 V W68
2023-08-14 08:15:25 C 01 18 47.186 -21 03 00.47 V W68
2023-08-14 08:38:00 C 01 18 50.880 -21 04 09.77 V W68
2023-08-14 09:14:08 C 01 18 56.724 -21 06 00.83 V W68
2023-08-22 06:44:57 C 01 54 40.462 -31 33 54.04 V W68
2023-08-22 06:48:30 C 01 54 41.203 -31 34 06.38 V W68
2023-08-22 06:52:44 C 01 54 42.034 -31 34 21.32 V W68
2023-08-22 07:00:47 C 01 54 43.685 -31 34 49.01 V W68
2023-08-22 07:05:20 C 01 54 44.609 -31 35 05.39 V W68
2023-08-22 07:08:36 C 01 54 45.281 -31 35 16.44 V W68
2023-08-24 00:42:02 C 02 03 44.146 -34 00 19.84 V M22
2023-08-24 00:46:47 C 02 03 45.146 -34 00 36.61 V M22
2023-08-24 00:52:17 C 02 03 46.325 -34 00 55.62 V M22
2023-08-24 01:00:23 C 02 03 48.072 -34 01 24.35 V M22
2023-08-27 01:01:24 C 02 20 29.938 -38 12 22.75 V M22
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)