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
2020-08-20 03:54:12 S 22 56 02.489 -32 12 19.15 V C57
2020-08-20 03:54:12 s 1 -97125.236 0 +380910.65 6810.0 C57
2020-08-20 04:04:12 S 22 56 02.460 -32 13 01.09 V C57
2020-08-20 04:04:12 s 1 -97456.284 0 +380776.28 1060.0 C57
2020-08-20 04:14:12 S 22 56 02.448 -32 13 45.05 V C57
2020-08-20 04:14:12 s 1 -97787.106 0 +380641.00 5200.0 C57
2020-08-20 04:24:12 S 22 56 02.414 -32 14 23.86 V C57
2020-08-20 04:24:12 s 1 -98117.699 0 +380504.81 9250.0 C57
2020-08-20 04:34:12 S 22 56 02.261 -32 15 05.58 V C57
2020-08-20 04:34:12 s 1 -98448.063 0 +380367.71 3190.0 C57
2020-08-20 04:44:12 S 22 56 02.158 -32 15 46.04 V C57
2020-08-20 04:44:12 s 1 -98778.198 0 +380229.69 7040.0 C57
2020-08-20 04:54:12 S 22 56 02.057 -32 16 27.19 V C57
2020-08-20 04:54:12 s 1 -99108.101 0 +380090.77 780.0 C57
2020-08-20 05:04:12 S 22 56 02.016 -32 17 12.55 V C57
2020-08-20 05:04:12 s 1 -99437.774 0 +379950.93 4420.0 C57
2020-08-20 05:24:12 S 22 56 01.968 -32 18 26.53 V C57
2020-08-20 05:24:12 s 1 -100096.41 9 +379668.52 1390.0 C57
2020-08-20 05:34:12 S 22 56 02.095 -32 19 12.14 V C57
2020-08-20 05:34:12 s 1 -100425.39 2 +379525.95 4730.0 C57
2020-08-20 05:44:12 S 22 56 02.045 -32 19 57.58 V C57
2020-08-20 05:44:12 s 1 -100754.12 8 +379382.47 7960.0 C57
2020-08-20 05:54:12 S 22 56 01.970 -32 20 36.89 V C57
2020-08-20 05:54:12 s 1 -101082.62 9 +379238.07 1090.0 C57
2020-08-20 06:04:12 S 22 56 01.970 -32 21 16.96 V C57
2020-08-20 06:04:12 s 1 -101410.89 3 +379092.77 4110.0 C57
2020-08-20 06:14:12 S 22 56 01.925 -32 21 56.63 V C57
2020-08-20 06:14:12 s 1 -101738.91 9 +378946.55 7030.0 C57
2020-08-20 06:24:12 S 22 56 01.788 -32 22 38.78 V C57
2020-08-20 06:24:12 s 1 -102066.70 6 +378799.42 9840.0 C57
2020-08-20 06:34:12 S 22 56 01.814 -32 23 18.74 V C57
2020-08-20 06:34:12 s 1 -102394.25 3 +378651.38 2550.0 C57
2020-08-20 06:44:12 S 22 56 01.735 -32 24 02.30 V C57
2020-08-20 06:44:12 s 1 -102721.56 0 +378502.43 5160.0 C57
2020-08-20 06:54:12 S 22 56 01.762 -32 24 41.36 V C57
2020-08-20 06:54:12 s 1 -103048.62 6 +378352.57 7650.0 C57
2020-08-20 07:04:12 S 22 56 01.610 -32 25 22.30 V C57
2020-08-20 07:04:12 s 1 -103375.44 9 +378201.79 50.0 C57
2020-08-20 07:14:12 S 22 56 01.519 -32 26 07.37 V C57
2020-08-20 07:14:12 s 1 -103702.02 8 +378050.10 2330.0 C57
2020-08-20 07:24:12 S 22 56 01.807 -32 26 48.12 V C57
2020-08-20 07:24:12 s 1 -104028.36 4 +377897.50 4510.0 C57
2020-08-20 07:34:12 S 22 56 01.416 -32 27 27.36 V C57
2020-08-20 07:34:12 s 1 -104354.45 4 +377743.99 6590.0 C57
2020-08-20 07:44:12 S 22 56 01.582 -32 28 06.38 V C57
2020-08-20 07:44:12 s 1 -104680.29 8 +377589.57 8550.0 C57
2020-08-20 07:54:12 S 22 56 01.382 -32 28 50.81 V C57
2020-08-20 07:54:12 s 1 -105005.89 5 +377434.24 410.0 C57
2020-08-20 08:04:12 S 22 56 01.294 -32 29 31.60 V C57
2020-08-20 08:04:12 s 1 -105331.24 5 +377277.99 2160.0 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)