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
2023-08-27 01:10:07 C 02 20 31.992 -38 12 53.68 V M22
2023-08-27 01:17:56 C 02 20 33.833 -38 13 20.46 V M22
2023-08-27 20:59:04 C 02 25 24.926 -39 20 54.49 V M22
2023-08-27 21:03:11 C 02 25 25.927 -39 21 08.71 V M22
2023-08-27 21:53:51 C 02 25 38.390 -39 24 06.01 V M22
2023-08-27 22:21:12 C 02 25 45.132 -39 25 41.12 V M22
2023-09-21 02:09:39 C 05 34 41.395 -61 21 12.28 V M22
2023-09-21 02:39:35 C 05 34 51.866 -61 21 39.42 V M22
2023-09-21 02:44:28 C 05 34 53.436 -61 21 43.92 V M22
2023-09-21 03:07:33 C 05 35 01.654 -61 22 03.07 V M22
2024-01-15 12:16:22 C 13 56 56.213 -11 17 20.15 V 703
2024-01-15 12:19:42 C 13 56 56.663 -11 17 10.93 V 703
2024-01-15 12:23:02 C 13 56 57.037 -11 17 03.41 V 703
2024-01-15 12:26:23 C 13 56 57.397 -11 16 54.48 V 703
2024-01-19 12:27:12 C 14 09 37.908 -07 15 58.61 V 703
2024-01-19 12:30:30 C 14 09 38.243 -07 15 50.44 V 703
2024-01-19 12:33:49 C 14 09 38.689 -07 15 42.44 V 703
2024-01-19 12:37:07 C 14 09 39.010 -07 15 32.18 V 703
2024-01-24 01:59:28 S 14 23 28.16 -02 33 29.8 L C51
2024-01-24 01:59:39 S 14 23 28.15 -02 33 29.2 L C51
2024-01-24 05:05:13 S 14 23 51.02 -02 25 25.6 L C51
2024-01-24 08:10:58 S 14 24 13.86 -02 17 21.8 L C51
2024-01-24 14:22:18 S 14 24 59.45 -02 01 14.0 L C51
2024-01-24 15:55:04 S 14 25 10.82 -01 57 12.4 L C51
2024-01-24 17:27:51 S 14 25 22.17 -01 53 11.0 L C51
2024-01-24 19:00:38 S 14 25 33.50 -01 49 08.7 L C51
2024-01-24 20:33:37 S 14 25 44.86 -01 45 05.1 L C51
2024-01-24 22:06:23 S 14 25 56.18 -01 41 04.2 L C51
2024-01-24 23:39:10 S 14 26 07.51 -01 37 01.4 L C51
2024-01-25 01:11:57 S 14 26 18.82 -01 32 58.9 L C51
2024-01-25 04:17:43 S 14 26 41.45 -01 24 53.4 L C51
2024-01-25 07:23:16 S 14 27 03.98 -01 16 48.3 L C51
2024-01-25 13:34:46 S 14 27 49.06 -01 00 37.0 L C51
2024-02-05 12:02:16 C 14 57 12.038 +10 28 13.69 V G96
2024-02-05 12:09:49 C 14 57 12.773 +10 28 33.42 V G96
2024-02-05 12:17:21 C 14 57 13.507 +10 28 53.15 V G96
2024-02-05 12:24:56 C 14 57 14.245 +10 29 12.77 V G96
2024-02-08 13:51:39 C 15 04 29.146 +13 39 24.41 V T05
2024-02-08 13:56:21 C 15 04 29.561 +13 39 36.47 V T05
2024-02-08 14:26:35 C 15 04 32.371 +13 40 54.55 V T05
2024-02-08 14:37:52 C 15 04 33.374 +13 41 24.00 V T05
2024-02-14 11:11:49 C 15 17 01.219 +19 35 50.82 V 703
2024-02-14 11:15:05 C 15 17 01.388 +19 35 59.86 V 703
2024-02-14 11:18:21 C 15 17 01.684 +19 36 07.42 V 703
2024-02-14 11:21:38 C 15 17 01.936 +19 36 14.94 V 703
2024-02-14 13:53:19 C 15 17 14.542 +19 42 32.83 V T05
2024-02-14 13:58:37 C 15 17 14.962 +19 42 46.01 V T05
2024-02-14 14:04:29 C 15 17 15.355 +19 43 00.44 V T05
2024-02-14 14:15:38 C 15 17 16.310 +19 43 28.09 V T05
2024-02-15 11:49:37 C 15 19 00.070 +20 36 19.91 V 703
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)