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 09:54:12 S 22 56 00.838 -32 37 06.64 V C57
2020-08-20 09:54:12 s 1 -108893.46 5 +375499.10 4170.0 C57
2020-08-20 10:04:12 S 22 56 00.734 -32 37 49.55 V C57
2020-08-20 10:04:12 s 1 -109215.76 8 +375331.91 4590.0 C57
2020-08-20 10:14:12 S 22 56 00.977 -32 38 30.30 V C57
2020-08-20 10:14:12 s 1 -109537.81 1 +375163.81 4900.0 C57
2020-08-20 10:24:12 S 22 56 00.977 -32 39 11.95 V C57
2020-08-20 10:24:12 s 1 -109859.59 3 +374994.80 5100.0 C57
2020-08-20 10:34:12 S 22 56 00.814 -32 39 54.94 V C57
2020-08-20 10:34:12 s 1 -110181.11 3 +374824.87 5180.0 C57
2020-08-20 10:44:12 S 22 56 00.689 -32 40 35.08 V C57
2020-08-20 10:44:12 s 1 -110502.37 1 +374654.03 5160.0 C57
2020-08-20 10:54:12 S 22 56 00.684 -32 41 16.22 V C57
2020-08-20 10:54:12 s 1 -110823.36 5 +374482.27 5010.0 C57
2020-08-20 11:04:12 S 22 56 00.583 -32 41 57.30 V C57
2020-08-20 11:04:12 s 1 -111144.09 4 +374309.61 4750.0 C57
2020-08-20 11:14:12 S 22 56 00.552 -32 42 38.77 V C57
2020-08-20 11:14:12 s 1 -111464.55 8 +374136.03 4380.0 C57
2020-08-20 11:24:12 S 22 56 00.547 -32 43 24.35 V C57
2020-08-20 11:24:12 s 1 -111784.75 5 +373961.54 3890.0 C57
2020-08-20 11:34:12 S 22 56 00.588 -32 44 01.50 V C57
2020-08-20 11:34:12 s 1 -112104.68 5 +373786.13 3290.0 C57
2020-08-20 11:44:12 S 22 56 00.482 -32 44 42.04 V C57
2020-08-20 11:44:12 s 1 -112424.34 6 +373609.82 2570.0 C57
2020-08-20 11:54:12 S 22 56 00.425 -32 45 23.98 V C57
2020-08-20 11:54:12 s 1 -112743.73 8 +373432.59 1730.0 C57
2020-08-20 12:04:12 S 22 56 00.521 -32 46 07.72 V C57
2020-08-20 12:04:12 s 1 -113062.86 0 +373254.44 780.0 C57
2020-08-20 12:14:12 S 22 56 00.439 -32 46 48.94 V C57
2020-08-20 12:14:12 s 1 -113381.71 1 +373075.39 9710.0 C57
2020-08-20 12:24:12 S 22 56 00.113 -32 47 27.89 V C57
2020-08-20 12:24:12 s 1 -113700.28 9 +372895.42 8520.0 C57
2020-08-20 12:44:12 S 22 56 00.415 -32 48 49.79 V C57
2020-08-20 12:44:12 s 1 -114336.62 5 +372532.73 5790.0 C57
2020-08-20 12:54:12 S 22 56 00.422 -32 49 33.24 V C57
2020-08-20 12:54:12 s 1 -114654.38 1 +372350.02 4250.0 C57
2020-08-20 13:04:12 S 22 56 00.245 -32 50 14.71 V C57
2020-08-20 13:04:12 s 1 -114971.86 1 +372166.40 2590.0 C57
2020-08-20 13:14:12 S 22 56 00.072 -32 50 55.93 V C57
2020-08-20 13:14:12 s 1 -115289.06 4 +371981.86 810.0 C57
2020-08-20 13:24:12 S 22 56 00.067 -32 51 36.47 V C57
2020-08-20 13:24:12 s 1 -115605.98 9 +371796.41 8910.0 C57
2020-08-20 13:34:12 S 22 56 00.106 -32 52 21.25 V C57
2020-08-20 13:34:12 s 1 -115922.63 5 +371610.04 6890.0 C57
2020-08-20 13:44:12 S 22 56 00.060 -32 52 57.58 V C57
2020-08-20 13:44:12 s 1 -116239.00 1 +371422.76 4750.0 C57
2020-08-20 13:54:12 S 22 55 59.878 -32 53 46.82 V C57
2020-08-20 13:54:12 s 1 -116555.08 6 +371234.56 2490.0 C57
2020-08-20 14:04:12 S 22 55 59.909 -32 54 22.25 V C57
2020-08-20 14:04:12 s 1 -116870.89 0 +371045.46 100.0 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)