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
2020-08-22 02:14:12 S 22 55 56.472 -35 25 46.56 V C57
2020-08-22 02:14:12 s 1 -176819.88 7 +307992.85 4800.0 C57
2020-08-22 02:24:12 S 22 55 56.424 -35 26 28.32 V C57
2020-08-22 02:24:12 s 1 -177046.34 4 +307598.05 5320.0 C57
2020-08-22 02:34:12 S 22 55 56.179 -35 27 14.90 V C57
2020-08-22 02:34:12 s 1 -177272.23 3 +307202.26 5600.0 C57
2020-08-22 02:44:12 S 22 55 56.549 -35 27 51.16 V C57
2020-08-22 02:44:12 s 1 -177497.55 2 +306805.47 5650.0 C57
2020-08-22 02:54:12 S 22 55 56.273 -35 28 38.42 V C57
2020-08-22 02:54:12 s 1 -177722.29 8 +306407.69 5460.0 C57
2020-08-22 03:04:12 S 22 55 56.357 -35 29 24.79 V C57
2020-08-22 03:04:12 s 1 -177946.47 0 +306008.92 5040.0 C57
2020-08-22 03:14:12 S 22 55 56.410 -35 30 02.27 V C57
2020-08-22 03:14:12 s 1 -178170.06 7 +305609.16 4390.0 C57
2020-08-22 03:24:12 S 22 55 56.374 -35 30 42.48 V C57
2020-08-22 03:24:12 s 1 -178393.08 6 +305208.40 3500.0 C57
2020-08-22 03:34:12 S 22 55 56.551 -35 31 25.36 V C57
2020-08-22 03:34:12 s 1 -178615.52 5 +304806.64 2380.0 C57
2020-08-22 03:44:12 S 22 55 56.465 -35 32 09.24 V C57
2020-08-22 03:44:12 s 1 -178837.38 2 +304403.89 1020.0 C57
2020-08-22 03:54:12 S 22 55 56.434 -35 32 52.91 V C57
2020-08-22 03:54:12 s 1 -179058.65 7 +304000.15 9420.0 C57
2020-08-22 04:04:12 S 22 55 56.508 -35 33 33.19 V C57
2020-08-22 04:04:12 s 1 -179279.34 6 +303595.40 7580.0 C57
2020-08-22 04:14:12 S 22 55 56.424 -35 34 19.27 V C57
2020-08-22 04:14:12 s 1 -179499.44 7 +303189.66 5500.0 C57
2020-08-22 04:24:12 S 22 55 56.491 -35 34 58.33 V C57
2020-08-22 04:24:12 s 1 -179718.96 0 +302782.92 3190.0 C57
2020-08-22 04:34:12 S 22 55 56.390 -35 35 38.58 V C57
2020-08-22 04:34:12 s 1 -179937.88 1 +302375.18 630.0 C57
2020-08-22 05:04:12 S 22 55 56.575 -35 37 42.46 V C57
2020-08-22 05:04:12 s 1 -180591.08 1 +301145.96 1510.0 C57
2020-08-22 05:14:12 S 22 55 56.702 -35 38 29.54 V C57
2020-08-22 05:14:12 s 1 -180807.61 9 +300734.22 7980.0 C57
2020-08-22 05:24:12 S 22 55 56.659 -35 39 14.62 V C57
2020-08-22 05:24:12 s 1 -181023.55 6 +300321.47 4210.0 C57
2020-08-22 05:34:12 S 22 55 56.731 -35 39 57.82 V C57
2020-08-22 05:34:12 s 1 -181238.89 1 +299907.72 200.0 C57
2020-08-22 05:44:12 S 22 55 56.460 -35 40 36.30 V C57
2020-08-22 05:44:12 s 1 -181453.62 0 +299492.97 5940.0 C57
2020-08-22 05:54:12 S 22 55 56.666 -35 41 19.82 V C57
2020-08-22 05:54:12 s 1 -181667.74 4 +299077.21 1430.0 C57
2020-08-22 06:04:12 S 22 55 56.604 -35 42 01.62 V C57
2020-08-22 06:04:12 s 1 -181881.25 8 +298660.45 6670.0 C57
2020-08-22 06:14:12 S 22 55 56.846 -35 42 38.92 V C57
2020-08-22 06:14:12 s 1 -182094.16 2 +298242.68 1670.0 C57
2020-08-22 06:24:12 S 22 55 56.525 -35 43 26.33 V C57
2020-08-22 06:24:12 s 1 -182306.45 3 +297823.91 6410.0 C57
2020-08-22 06:44:12 S 22 55 56.698 -35 44 46.82 V C57
2020-08-22 06:44:12 s 1 -182729.19 0 +296983.33 5150.0 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)