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
2020-08-23 09:14:12 S 22 56 01.188 -37 37 46.24 V C57
2020-08-23 09:14:12 s 1 -206765.81 6 +216701.07 2300.0 C57
2020-08-23 09:34:12 S 22 56 01.109 -37 39 10.76 V C57
2020-08-23 09:34:12 s 1 -206921.47 0 +215513.77 2460.0 C57
2020-08-23 09:54:12 S 22 56 01.318 -37 40 47.71 V C57
2020-08-23 09:54:12 s 1 -207072.67 1 +214321.84 800.0 C57
2020-08-23 10:04:12 S 22 56 01.066 -37 41 24.58 V C57
2020-08-23 10:04:12 s 1 -207146.59 0 +213724.13 9290.0 C57
2020-08-23 10:14:12 S 22 56 00.950 -37 42 00.32 V C57
2020-08-23 10:14:12 s 1 -207219.38 1 +213125.25 7310.0 C57
2020-08-23 10:34:12 S 22 56 01.558 -37 43 30.29 V C57
2020-08-23 10:34:12 s 1 -207361.56 4 +211924.02 1980.0 C57
2020-08-23 10:44:12 S 22 56 01.673 -37 44 20.65 V C57
2020-08-23 10:44:12 s 1 -207430.94 5 +211321.65 8610.0 C57
2020-08-23 10:54:12 S 22 56 01.627 -37 44 58.70 V C57
2020-08-23 10:54:12 s 1 -207499.18 1 +210718.11 4770.0 C57
2020-08-23 11:04:12 S 22 56 01.634 -37 45 37.91 V C57
2020-08-23 11:04:12 s 1 -207566.26 5 +210113.41 470.0 C57
2020-08-23 11:14:12 S 22 56 01.442 -37 46 22.98 V C57
2020-08-23 11:14:12 s 1 -207632.19 3 +209507.53 5690.0 C57
2020-08-23 11:24:12 S 22 56 01.726 -37 47 11.51 V C57
2020-08-23 11:24:12 s 1 -207696.96 1 +208900.49 440.0 C57
2020-08-23 11:34:12 S 22 56 01.932 -37 47 51.97 V C57
2020-08-23 11:34:12 s 1 -207760.56 2 +208292.27 4710.0 C57
2020-08-23 11:54:12 S 22 56 01.270 -37 49 23.38 V C57
2020-08-23 11:54:12 s 1 -207884.24 9 +207072.31 1820.0 C57
2020-08-23 12:14:12 S 22 56 01.944 -37 50 42.32 V C57
2020-08-23 12:14:12 s 1 -208003.21 2 +205847.65 6990.0 C57
2020-08-23 12:24:12 S 22 56 01.778 -37 51 26.46 V C57
2020-08-23 12:24:12 s 1 -208060.91 1 +205233.55 8850.0 C57
2020-08-23 12:34:12 S 22 56 01.807 -37 52 11.21 V C57
2020-08-23 12:34:12 s 1 -208117.41 3 +204618.27 220.0 C57
2020-08-23 12:44:12 S 22 56 01.822 -37 52 52.21 V C57
2020-08-23 12:44:12 s 1 -208172.71 4 +204001.81 1100.0 C57
2020-08-23 12:54:12 S 22 56 02.153 -37 53 32.35 V C57
2020-08-23 12:54:12 s 1 -208226.80 9 +203384.17 1490.0 C57
2020-08-23 13:04:12 S 22 56 02.508 -37 54 10.44 V C57
2020-08-23 13:04:12 s 1 -208279.69 3 +202765.35 1380.0 C57
2020-08-23 13:24:12 S 22 56 02.328 -37 55 42.64 V C57
2020-08-23 13:24:12 s 1 -208381.80 6 +201524.15 9670.0 C57
2020-08-23 13:34:12 S 22 56 02.407 -37 56 25.51 V C57
2020-08-23 13:34:12 s 1 -208431.02 4 +200901.77 8060.0 C57
2020-08-23 13:44:12 S 22 56 02.110 -37 57 09.72 V C57
2020-08-23 13:44:12 s 1 -208479.01 0 +200278.20 5950.0 C57
2020-08-23 13:54:12 S 22 56 02.117 -37 57 56.20 V C57
2020-08-23 13:54:12 s 1 -208525.75 7 +199653.45 3330.0 C57
2020-08-23 14:14:12 S 22 56 02.515 -37 59 17.74 V C57
2020-08-23 14:14:12 s 1 -208615.51 8 +198400.36 6560.0 C57
2020-08-23 14:24:12 S 22 56 02.671 -37 59 59.93 V C57
2020-08-23 14:24:12 s 1 -208658.51 9 +197772.03 2410.0 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)