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
2020-08-24 01:34:12 S 22 56 06.257 -38 48 29.48 V C57
2020-08-24 01:34:12 s 1 -208358.53 7 +152895.25 8670.0 C57
2020-08-24 02:04:12 S 22 56 06.895 -38 50 31.38 V C57
2020-08-24 02:04:12 s 1 -208181.02 9 +150754.94 230.0 C57
2020-08-24 02:14:12 S 22 56 07.104 -38 51 16.63 V C57
2020-08-24 02:14:12 s 1 -208118.35 6 +150038.95 2640.0 C57
2020-08-24 02:24:12 S 22 56 06.986 -38 51 59.69 V C57
2020-08-24 02:24:12 s 1 -208053.91 7 +149321.70 4320.0 C57
2020-08-24 02:34:12 S 22 56 07.639 -38 52 43.28 V C57
2020-08-24 02:34:12 s 1 -207987.70 1 +148603.17 5260.0 C57
2020-08-24 02:54:12 S 22 56 07.361 -38 54 13.28 V C57
2020-08-24 02:54:12 s 1 -207849.90 5 +147162.28 4940.0 C57
2020-08-24 03:44:12 S 22 56 07.450 -38 57 45.65 V C57
2020-08-24 03:44:12 s 1 -207473.67 7 +143537.70 1030.0 C57
2020-08-24 09:34:14 S 22 56 08.966 -39 23 03.55 V C57
2020-08-24 09:34:14 s 1 -203468.88 0 +117262.34 6380.0 C57
2020-08-24 10:04:14 S 22 56 10.116 -39 25 31.19 V C57
2020-08-24 10:04:14 s 1 -203004.73 6 +114936.53 9330.0 C57
2020-08-24 10:14:14 S 22 56 10.759 -39 26 17.09 V C57
2020-08-24 10:14:14 s 1 -202845.45 6 +114158.66 1750.0 C57
2020-08-24 10:24:14 S 22 56 10.642 -39 26 49.49 V C57
2020-08-24 10:24:14 s 1 -202683.87 1 +113379.50 3220.0 C57
2020-08-24 10:34:14 S 22 56 10.447 -39 27 40.00 V C57
2020-08-24 10:34:14 s 1 -202519.96 7 +112599.04 3720.0 C57
2020-08-24 10:44:14 S 22 56 10.337 -39 28 25.18 V C57
2020-08-24 10:44:14 s 1 -202353.73 0 +111817.29 3260.0 C57
2020-08-24 10:54:14 S 22 56 10.819 -39 29 09.35 V C57
2020-08-24 10:54:14 s 1 -202185.14 6 +111034.23 1820.0 C57
2020-08-24 11:24:14 S 22 56 11.078 -39 31 19.52 V C57
2020-08-24 11:24:14 s 1 -201665.17 4 +108677.30 1600.0 C57
2020-08-24 11:34:14 S 22 56 11.184 -39 32 08.70 V C57
2020-08-24 11:34:14 s 1 -201487.06 2 +107889.06 6210.0 C57
2020-08-24 11:54:14 S 22 56 11.366 -39 33 26.71 V C57
2020-08-24 11:54:14 s 1 -201123.56 7 +106308.70 2400.0 C57
2020-08-24 12:54:14 S 22 56 12.034 -39 37 53.47 V C57
2020-08-24 12:54:14 s 1 -199973.73 5 +101536.49 6190.0 C57
2020-08-24 13:14:14 S 22 56 11.597 -39 39 18.68 V C57
2020-08-24 13:14:14 s 1 -199566.15 0 +99931.384 9130.0 C57
2020-08-24 13:24:14 S 22 56 11.606 -39 40 09.12 V C57
2020-08-24 13:24:14 s 1 -199360.58 7 +99128.924 2330.0 C57
2020-08-24 13:44:14 S 22 56 12.271 -39 41 29.83 V C57
2020-08-24 13:44:14 s 1 -198941.67 8 +97520.140 5500.0 C57
2020-08-24 13:54:14 S 22 56 13.121 -39 42 18.25 V C57
2020-08-24 13:54:14 s 1 -198728.30 0 +96713.820 5450.0 C57
2020-08-24 14:04:14 S 22 56 12.180 -39 43 05.88 V C57
2020-08-24 14:04:14 s 1 -198512.28 5 +95906.216 4310.0 C57
2020-08-24 16:34:14 S 22 56 13.308 -39 54 02.66 V C57
2020-08-24 16:34:14 s 1 -194943.76 0 +83639.092 580.0 C57
2020-08-24 16:44:14 S 22 56 13.942 -39 54 37.12 V C57
2020-08-24 16:44:14 s 1 -194683.15 2 +82811.160 880.0 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)