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
2024-02-15 11:52:56 C 15 19 00.401 +20 36 28.30 V 703
2024-02-15 11:56:18 C 15 19 00.577 +20 36 36.47 V 703
2024-02-15 11:59:36 C 15 19 00.829 +20 36 43.45 V 703
2024-02-18 13:45:02 C 15 24 35.618 +23 34 20.46 V T05
2024-02-18 13:49:36 C 15 24 35.834 +23 34 30.90 V T05
2024-02-18 13:54:49 C 15 24 36.209 +23 34 43.61 V T05
2024-02-18 14:07:13 C 15 24 36.998 +23 35 14.10 V T05
2024-02-19 11:59:22 C 15 26 09.193 +24 26 42.94 V 703
2024-02-19 12:02:37 C 15 26 09.344 +24 26 50.53 V 703
2024-02-19 12:05:52 C 15 26 09.564 +24 26 58.34 V 703
2024-02-19 12:09:07 C 15 26 09.784 +24 27 06.44 V 703
2024-02-20 11:47:03 C 15 27 46.314 +25 22 12.00 V G96
2024-02-20 11:54:25 C 15 27 46.739 +25 22 29.06 V G96
2024-02-20 12:09:10 C 15 27 47.430 +25 23 03.37 V G96
2024-02-20 12:22:37 C 15 27 48.492 +25 23 34.44 V G96
2024-02-20 12:29:59 C 15 27 48.935 +25 23 51.61 V G96
2024-02-20 12:37:22 C 15 27 49.403 +25 24 08.71 V G96
2024-03-04 09:29:58 C 15 42 49.219 +36 20 23.14 V G96
2024-03-04 09:36:41 C 15 42 49.392 +36 20 36.13 V G96
2024-03-04 09:43:24 C 15 42 49.550 +36 20 49.16 V G96
2024-03-04 09:50:08 C 15 42 49.720 +36 21 02.20 V G96
2024-03-11 10:36:26 C 15 45 45.518 +41 23 57.23 V G96
2024-03-11 10:49:48 C 15 45 45.511 +41 24 19.69 V G96
2024-03-11 10:57:23 C 15 45 45.508 +41 24 32.58 V G96
2024-03-11 11:04:55 C 15 45 45.515 +41 24 45.04 V G96
2024-03-14 11:22:16 C 15 45 46.558 +43 21 10.40 V T05
2024-03-14 11:26:21 C 15 45 46.505 +43 21 17.21 V T05
2024-03-14 12:09:33 C 15 45 46.075 +43 22 25.54 V T05
2024-03-14 12:33:02 C 15 45 45.751 +43 23 02.87 V T05
2024-03-18 10:15:50 C 15 44 36.186 +45 41 19.64 V 703
2024-03-18 10:18:55 C 15 44 36.204 +45 41 23.42 V 703
2024-03-18 10:22:00 C 15 44 36.107 +45 41 27.96 V 703
2024-03-18 10:25:05 C 15 44 36.107 +45 41 30.80 V 703
2024-03-21 13:24:27 C 15 42 44.758 +47 21 52.44 X F52
2024-03-21 13:37:10 C 15 42 44.296 +47 22 08.73 X F52
2024-03-21 13:49:58 C 15 42 43.831 +47 22 25.15 X F52
2024-03-21 14:02:43 C 15 42 43.362 +47 22 41.42 X F52
2024-03-22 12:27:08 C 15 42 01.012 +47 50 47.68 X F51
2024-03-22 12:39:28 C 15 42 00.528 +47 51 03.18 X F51
2024-03-22 12:51:56 C 15 42 00.035 +47 51 18.73 X F51
2024-03-22 13:04:25 C 15 41 59.549 +47 51 34.46 X F51
2024-03-23 13:41:39 C 15 41 07.003 +48 21 28.49 X F52
2024-03-23 13:54:11 C 15 41 06.467 +48 21 43.40 X F52
2024-03-23 14:06:47 C 15 41 05.930 +48 21 58.54 X F52
2024-03-27 14:15:07 C 15 36 51.988 +50 08 44.82 X F51
2024-03-27 14:32:08 C 15 36 51.032 +50 09 02.13 X F51
2024-03-27 14:49:10 C 15 36 50.071 +50 09 19.51 X F51
2024-03-27 14:52:42 C 15 36 49.878 +50 09 23.04 X F52
2024-03-27 15:05:04 C 15 36 49.164 +50 09 35.54 X F52
2024-03-27 15:06:13 C 15 36 49.095 +50 09 36.84 X F51
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)