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 22:44:12 S 22 55 58.222 -33 30 23.72 V C57
2020-08-20 22:44:12 s 1 -132879.49 2 +359948.41 9660.0 C57
2020-08-20 22:54:12 S 22 55 58.510 -33 31 07.75 V C57
2020-08-20 22:54:12 s 1 -133178.91 4 +359710.64 300.0 C57
2020-08-20 23:04:12 S 22 55 58.414 -33 31 45.73 V C57
2020-08-20 23:04:12 s 1 -133477.99 8 +359471.93 800.0 C57
2020-08-20 23:14:12 S 22 55 58.246 -33 32 28.72 V C57
2020-08-20 23:14:12 s 1 -133776.74 4 +359232.31 1150.0 C57
2020-08-20 23:24:12 S 22 55 58.241 -33 33 10.48 V C57
2020-08-20 23:24:12 s 1 -134075.15 1 +358991.76 1360.0 C57
2020-08-20 23:34:12 S 22 55 58.099 -33 33 54.83 V C57
2020-08-20 23:34:12 s 1 -134373.21 6 +358750.29 1430.0 C57
2020-08-20 23:44:12 S 22 55 58.212 -33 34 35.65 V C57
2020-08-20 23:44:12 s 1 -134670.94 0 +358507.89 1360.0 C57
2020-08-21 00:04:12 S 22 55 58.030 -33 35 59.57 V C57
2020-08-21 00:04:12 s 1 -135265.35 8 +358020.32 770.0 C57
2020-08-21 00:14:12 S 22 55 58.200 -33 36 36.29 V C57
2020-08-21 00:14:12 s 1 -135562.05 0 +357775.15 260.0 C57
2020-08-21 00:24:12 S 22 55 58.128 -33 37 20.64 V C57
2020-08-21 00:24:12 s 1 -135858.39 6 +357529.06 9600.0 C57
2020-08-21 00:34:12 S 22 55 57.953 -33 38 06.32 V C57
2020-08-21 00:34:12 s 1 -136154.39 4 +357282.04 8800.0 C57
2020-08-21 00:44:12 S 22 55 58.066 -33 38 45.10 V C57
2020-08-21 00:44:12 s 1 -136450.04 4 +357034.09 7850.0 C57
2020-08-21 00:54:12 S 22 55 58.106 -33 39 23.44 V C57
2020-08-21 00:54:12 s 1 -136745.34 4 +356785.22 6750.0 C57
2020-08-21 01:14:12 S 22 55 57.941 -33 40 51.42 V C57
2020-08-21 01:14:12 s 1 -137334.89 2 +356284.69 4120.0 C57
2020-08-21 01:24:12 S 22 55 57.910 -33 41 33.72 V C57
2020-08-21 01:24:12 s 1 -137629.13 7 +356033.04 2580.0 C57
2020-08-21 01:34:12 S 22 55 58.046 -33 42 15.70 V C57
2020-08-21 01:34:12 s 1 -137923.02 8 +355780.46 890.0 C57
2020-08-21 01:44:12 S 22 55 57.864 -33 42 55.94 V C57
2020-08-21 01:44:12 s 1 -138216.56 3 +355526.96 9050.0 C57
2020-08-21 01:54:12 S 22 55 58.054 -33 43 32.99 V C57
2020-08-21 01:54:12 s 1 -138509.74 3 +355272.53 7060.0 C57
2020-08-21 02:04:12 S 22 55 57.605 -33 44 17.02 V C57
2020-08-21 02:04:12 s 1 -138802.56 5 +355017.17 4930.0 C57
2020-08-21 02:14:12 S 22 55 57.938 -33 45 00.76 V C57
2020-08-21 02:14:12 s 1 -139095.02 8 +354760.88 2640.0 C57
2020-08-21 02:34:12 S 22 55 57.466 -33 46 21.04 V C57
2020-08-21 02:34:12 s 1 -139678.87 4 +354245.52 7610.0 C57
2020-08-21 02:44:12 S 22 55 57.679 -33 47 05.71 V C57
2020-08-21 02:44:12 s 1 -139970.25 4 +353986.45 4870.0 C57
2020-08-21 03:04:12 S 22 55 57.802 -33 48 33.84 V C57
2020-08-21 03:04:12 s 1 -140551.92 5 +353465.51 8930.0 C57
2020-08-21 03:14:12 S 22 55 57.972 -33 49 13.30 V C57
2020-08-21 03:14:12 s 1 -140842.21 2 +353203.65 5730.0 C57
2020-08-21 03:24:12 S 22 55 57.761 -33 49 54.44 V C57
2020-08-21 03:24:12 s 1 -141132.13 3 +352940.86 2370.0 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)