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
2020-08-21 12:54:12 S 22 55 56.645 -34 29 38.90 V C57
2020-08-21 12:54:12 s 1 -157012.08 1 +336414.84 2340.0 C57
2020-08-21 13:04:12 S 22 55 56.748 -34 30 23.04 V C57
2020-08-21 13:04:12 s 1 -157278.63 0 +336097.57 9280.0 C57
2020-08-21 13:14:12 S 22 55 56.611 -34 31 04.62 V C57
2020-08-21 13:14:12 s 1 -157544.73 8 +335779.35 6030.0 C57
2020-08-21 13:24:12 S 22 55 56.498 -34 31 47.39 V C57
2020-08-21 13:24:12 s 1 -157810.40 3 +335460.19 2600.0 C57
2020-08-21 13:34:12 S 22 55 56.443 -34 32 26.45 V C57
2020-08-21 13:34:12 s 1 -158075.62 4 +335140.07 8990.0 C57
2020-08-21 13:44:12 S 22 55 56.714 -34 33 09.18 V C57
2020-08-21 13:44:12 s 1 -158340.39 9 +334819.00 5200.0 C57
2020-08-21 13:54:12 S 22 55 56.654 -34 33 52.99 V C57
2020-08-21 13:54:12 s 1 -158604.72 7 +334496.98 1220.0 C57
2020-08-21 14:04:12 S 22 55 56.585 -34 34 35.22 V C57
2020-08-21 14:04:12 s 1 -158868.60 7 +334174.00 7050.0 C57
2020-08-21 14:14:12 S 22 55 56.484 -34 35 18.42 V C57
2020-08-21 14:14:12 s 1 -159132.03 7 +333850.07 2700.0 C57
2020-08-21 14:24:12 S 22 55 56.563 -34 35 52.73 V C57
2020-08-21 14:24:12 s 1 -159395.01 6 +333525.19 8170.0 C57
2020-08-21 14:34:12 S 22 55 56.278 -34 36 41.58 V C57
2020-08-21 14:34:12 s 1 -159657.54 3 +333199.36 3450.0 C57
2020-08-21 14:44:12 S 22 55 56.609 -34 37 23.27 V C57
2020-08-21 14:44:12 s 1 -159919.61 5 +332872.57 8540.0 C57
2020-08-21 14:54:12 S 22 55 56.527 -34 38 01.39 V C57
2020-08-21 14:54:12 s 1 -160181.23 2 +332544.83 3440.0 C57
2020-08-21 15:04:12 S 22 55 56.568 -34 38 45.42 V C57
2020-08-21 15:04:12 s 1 -160442.39 2 +332216.13 8160.0 C57
2020-08-21 15:14:12 S 22 55 56.309 -34 39 28.19 V C57
2020-08-21 15:14:12 s 1 -160703.09 4 +331886.48 2680.0 C57
2020-08-21 15:24:12 S 22 55 56.642 -34 40 09.19 V C57
2020-08-21 15:24:12 s 1 -160963.33 6 +331555.87 7020.0 C57
2020-08-21 15:34:12 S 22 55 56.746 -34 40 46.81 V C57
2020-08-21 15:34:12 s 1 -161223.11 7 +331224.31 1170.0 C57
2020-08-21 15:54:12 S 22 55 56.537 -34 42 16.92 V C57
2020-08-21 15:54:12 s 1 -161741.28 9 +330558.31 8890.0 C57
2020-08-21 16:04:12 S 22 55 56.609 -34 42 56.20 V C57
2020-08-21 16:04:12 s 1 -161999.67 8 +330223.87 2470.0 C57
2020-08-21 16:14:12 S 22 55 56.467 -34 43 41.09 V C57
2020-08-21 16:14:12 s 1 -162257.60 0 +329888.48 5850.0 C57
2020-08-21 16:24:12 S 22 55 56.467 -34 44 21.84 V C57
2020-08-21 16:24:12 s 1 -162515.05 3 +329552.13 9040.0 C57
2020-08-21 16:34:12 S 22 55 56.846 -34 45 04.39 V C57
2020-08-21 16:34:12 s 1 -162772.03 6 +329214.82 2040.0 C57
2020-08-21 16:44:12 S 22 55 56.455 -34 45 46.30 V C57
2020-08-21 16:44:12 s 1 -163028.54 8 +328876.55 4850.0 C57
2020-08-21 16:54:12 S 22 55 56.520 -34 46 27.73 V C57
2020-08-21 16:54:12 s 1 -163284.58 7 +328537.32 7460.0 C57
2020-08-21 17:04:12 S 22 55 56.410 -34 47 09.96 V C57
2020-08-21 17:04:12 s 1 -163540.15 2 +328197.13 9870.0 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)