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
2020-08-18 22:04:12 S 22 56 13.337 -30 10 20.60 V C57
2020-08-18 22:04:12 s 1 -35038.930 0 +390178.18 7010.0 C57
2020-08-18 22:14:12 S 22 56 13.606 -30 10 54.91 V C57
2020-08-18 22:14:12 s 1 -35396.966 0 +390209.13 3460.0 C57
2020-08-18 22:24:12 S 22 56 13.330 -30 11 39.05 V C57
2020-08-18 22:24:12 s 1 -35754.926 0 +390239.12 9870.0 C57
2020-08-18 22:34:12 S 22 56 13.421 -30 12 20.88 V C57
2020-08-18 22:34:12 s 1 -36112.808 0 +390268.18 6250.0 C57
2020-08-18 22:44:12 S 22 56 13.358 -30 13 00.91 V C57
2020-08-18 22:44:12 s 1 -36470.613 0 +390296.28 2600.0 C57
2020-08-18 22:54:12 S 22 56 13.325 -30 13 43.10 V C57
2020-08-18 22:54:12 s 1 -36828.338 0 +390323.44 8900.0 C57
2020-08-18 23:04:12 S 22 56 13.190 -30 14 22.92 V C57
2020-08-18 23:04:12 s 1 -37185.983 0 +390349.66 5170.0 C57
2020-08-18 23:24:12 S 22 56 12.943 -30 15 42.30 V C57
2020-08-18 23:24:12 s 1 -37901.031 0 +390399.25 7600.0 C57
2020-08-18 23:34:12 S 22 56 12.926 -30 16 23.20 V C57
2020-08-18 23:34:12 s 1 -38258.432 0 +390422.64 3760.0 C57
2020-08-18 23:44:12 S 22 56 12.778 -30 17 03.95 V C57
2020-08-18 23:44:12 s 1 -38615.749 0 +390445.08 9880.0 C57
2020-08-18 23:54:12 S 22 56 12.682 -30 17 44.95 V C57
2020-08-18 23:54:12 s 1 -38972.982 0 +390466.57 5960.0 C57
2020-08-19 00:04:12 S 22 56 12.631 -30 18 22.64 V C57
2020-08-19 00:04:12 s 1 -39330.131 0 +390487.12 2000.0 C57
2020-08-19 00:14:12 S 22 56 12.583 -30 19 05.45 V C57
2020-08-19 00:14:12 s 1 -39687.193 0 +390506.73 8000.0 C57
2020-08-19 00:24:12 S 22 56 12.660 -30 19 45.62 V C57
2020-08-19 00:24:12 s 1 -40044.169 0 +390525.40 3960.0 C57
2020-08-19 00:34:12 S 22 56 12.425 -30 20 28.03 V C57
2020-08-19 00:34:12 s 1 -40401.058 0 +390543.13 9880.0 C57
2020-08-19 00:44:12 S 22 56 12.276 -30 21 05.26 V C57
2020-08-19 00:44:12 s 1 -40757.858 0 +390559.91 5760.0 C57
2020-08-19 00:54:12 S 22 56 12.370 -30 21 47.38 V C57
2020-08-19 00:54:12 s 1 -41114.570 0 +390575.76 1590.0 C57
2020-08-19 01:04:12 S 22 56 12.266 -30 22 27.26 V C57
2020-08-19 01:04:12 s 1 -41471.191 0 +390590.66 7390.0 C57
2020-08-19 01:14:12 S 22 56 12.211 -30 23 08.99 V C57
2020-08-19 01:14:12 s 1 -41827.721 0 +390604.62 3150.0 C57
2020-08-19 01:24:12 S 22 56 12.017 -30 23 48.98 V C57
2020-08-19 01:24:12 s 1 -42184.160 0 +390617.65 8860.0 C57
2020-08-19 01:34:12 S 22 56 12.161 -30 24 30.17 V C57
2020-08-19 01:34:12 s 1 -42540.507 0 +390629.73 4530.0 C57
2020-08-19 01:54:12 S 22 56 11.966 -30 25 50.23 V C57
2020-08-19 01:54:12 s 1 -43252.919 0 +390651.08 5740.0 C57
2020-08-19 02:04:12 S 22 56 11.791 -30 26 32.42 V C57
2020-08-19 02:04:12 s 1 -43608.983 0 +390660.35 1280.0 C57
2020-08-19 02:14:12 S 22 56 11.801 -30 27 12.49 V C57
2020-08-19 02:14:12 s 1 -43964.951 0 +390668.67 6770.0 C57
2020-08-19 02:24:12 S 22 56 11.695 -30 27 53.64 V C57
2020-08-19 02:24:12 s 1 -44320.822 0 +390676.07 2220.0 C57
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)