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
2018-02-11 16:34:36 C 06 16 18.19 +33 28 16.2 q C97
2018-02-11 16:36:31 C 06 16 19.05 +33 28 52.9 q C97
2018-02-11 22:46:34 C 06 18 56.75 +35 12 22.5 U Z80
2018-02-11 22:48:23 C 06 18 57.50 +35 12 52.2 U Z80
2018-02-11 22:50:12 C 06 18 58.23 +35 13 22.2 U Z80
2018-02-11 22:52:02 C 06 18 59.00 +35 13 52.3 U Z80
2018-02-11 22:53:51 C 06 18 59.76 +35 14 22.2 U Z80
2018-02-11 22:55:39 C 06 19 00.49 +35 14 52.0 U Z80
2018-02-11 22:57:29 C 06 19 01.25 +35 15 21.9 U Z80
2018-02-11 22:59:18 C 06 19 02.00 +35 15 51.9 U Z80
2018-02-11 23:01:08 C 06 19 02.76 +35 16 21.8 U Z80
2018-02-11 23:02:56 C 06 19 03.50 +35 16 51.7 U Z80
2018-02-11 23:04:46 C 06 19 04.26 +35 17 21.7 U Z80
2018-02-12 04:17:57 C 06 21 23.96 +36 42 34.5 q V16
2018-02-12 04:18:03 C 06 21 24.00 +36 42 35.9 q V16
2018-02-12 04:29:47 C 06 21 28.66 +36 45 41.0 q V16
2018-02-12 04:29:53 C 06 21 28.68 +36 45 42.8 q V16
2018-02-12 04:30:59 C 06 21 29.13 +36 46 00.2 q V16
2018-02-12 04:46:16 C 06 21 35.19 +36 50 00.8 q V16
2018-02-12 04:46:22 C 06 21 35.22 +36 50 02.4 q V16
2018-02-12 04:47:29 C 06 21 35.67 +36 50 19.9 q V16
2018-02-12 05:30:27 C 06 21 52.77 +37 01 31.1 q V16
2018-02-12 05:30:33 C 06 21 52.78 +37 01 32.9 q V16
2018-02-12 05:31:39 C 06 21 53.20 +37 01 50.3 q V16
2018-02-12 05:31:46 C 06 21 53.29 +37 01 51.9 q V16
2018-02-12 06:11:52 C 06 22 09.31 +37 12 13.1 q V16
2018-02-12 06:11:59 C 06 22 09.37 +37 12 14.8 q V16
2018-02-12 06:13:07 C 06 22 09.80 +37 12 32.2 q V16
2018-02-12 06:13:12 C 06 22 09.85 +37 12 33.8 q V16
2018-02-12 06:50:47 C 06 22 25.02 +37 22 11.1 q V16
2018-02-12 06:50:53 C 06 22 25.04 +37 22 12.9 q V16
2018-02-12 06:52:00 C 06 22 25.52 +37 22 29.9 q V16
2018-02-12 06:52:06 C 06 22 25.55 +37 22 31.6 q V16
2018-02-13 16:11:12 C 06 36 54.16 +44 52 29.2 q C97
2018-02-13 16:15:02 C 06 36 55.64 +44 53 12.1 q C97
2018-02-13 16:20:45 C 06 36 57.94 +44 54 21.7 q C97
2018-02-13 16:32:13 C 06 37 02.32 +44 56 36.5 q C97
2018-02-13 16:37:56 C 06 37 04.49 +44 57 43.0 q C97
2018-02-13 16:43:41 C 06 37 06.61 +44 58 49.0 q C97
2018-02-13 16:49:27 C 06 37 09.00 +44 59 59.0 q C97
2018-02-13 16:55:12 C 06 37 11.04 +45 01 03.8 q C97
2018-02-13 17:00:57 C 06 37 13.39 +45 02 10.2 q C97
2018-02-13 17:06:40 C 06 37 15.52 +45 03 18.3 q C97
2018-02-13 17:12:24 C 06 37 17.60 +45 04 19.7 q C97
2018-02-13 18:12:56 C 06 37 47.50 +45 15 08.7 U K38
2018-02-13 18:23:34 C 06 37 51.74 +45 17 11.7 U K38
2018-02-13 18:28:52 C 06 37 53.85 +45 18 13.0 U K38
2018-02-13 18:36:50 C 06 37 57.01 +45 19 44.7 U K38
2018-02-13 18:42:08 C 06 37 59.11 +45 20 45.7 U K38
2018-02-13 18:50:44 C 06 38 02.53 +45 22 24.9 U K38
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)