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
2024-03-27 15:17:28 C 15 36 48.469 +50 09 48.06 X F52
2024-03-28 09:48:13 C 15 35 51.479 +50 28 28.02 V G96
2024-03-28 09:55:44 C 15 35 51.043 +50 28 35.58 V G96
2024-03-28 10:03:16 C 15 35 50.590 +50 28 43.10 V G96
2024-03-28 10:10:49 C 15 35 50.154 +50 28 50.52 V G96
2024-03-28 14:28:33 C 15 35 35.899 +50 33 08.16 X F51
2024-03-28 14:43:42 C 15 35 34.993 +50 33 22.83 X F51
2024-03-28 14:58:53 C 15 35 34.072 +50 33 37.54 X F51
2024-03-28 15:14:00 C 15 35 33.184 +50 33 52.14 X F51
2024-04-13 08:15:03 C 15 07 22.015 +54 37 37.81 V G96
2024-04-13 08:22:36 C 15 07 21.292 +54 37 40.19 V G96
2024-04-13 08:30:10 C 15 07 20.575 +54 37 42.71 V G96
2024-04-13 08:37:44 C 15 07 19.859 +54 37 44.87 V G96
2024-04-16 10:40:07 C 15 00 36.101 +54 55 17.28 X F51
2024-04-16 11:00:14 C 15 00 34.132 +54 55 20.87 X F51
2024-04-16 11:20:18 C 15 00 32.163 +54 55 24.46 X F51
2024-04-21 09:14:08 C 14 49 40.825 +55 03 21.85 V G96
2024-04-21 09:22:31 C 14 49 40.066 +55 03 21.64 V G96
2024-04-21 09:30:54 C 14 49 39.248 +55 03 21.20 V G96
2024-04-21 09:39:17 C 14 49 38.442 +55 03 20.84 V G96
2024-05-06 06:23:42 C 14 20 16.991 +53 16 14.77 V G96
2024-05-06 06:31:21 C 14 20 16.436 +53 16 10.70 V G96
2024-05-06 06:39:00 C 14 20 15.846 +53 16 06.28 V G96
2024-05-06 06:46:39 C 14 20 15.346 +53 16 02.86 V G96
2024-05-25 11:41:23 C 13 59 08.133 +47 25 19.18 X F52
2024-05-25 11:56:35 C 13 59 07.753 +47 25 04.75 X F52
2024-05-25 12:11:45 C 13 59 07.349 +47 24 50.39 X F52
2024-05-25 12:26:55 C 13 59 06.990 +47 24 36.03 X F52
2024-05-28 06:10:18 C 13 57 48.337 +46 22 16.14 V G96
2024-05-28 06:17:48 C 13 57 48.182 +46 22 08.62 V G96
2024-05-28 06:25:18 C 13 57 48.031 +46 22 01.56 V G96
2024-05-28 06:32:48 C 13 57 47.884 +46 21 54.14 V G96
2024-06-12 04:40:41 C 13 56 45.834 +40 11 21.95 V G96
2024-06-12 04:48:11 C 13 56 45.899 +40 11 13.06 V G96
2024-06-12 04:55:43 C 13 56 45.935 +40 11 05.03 V G96
2024-06-12 05:03:15 C 13 56 46.007 +40 10 56.64 V G96
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)