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
2020-07-28 00:26:08 C 22 53 10.15 -03 22 12.9 V 160
2020-07-29 23:59:19 C 22 54 15.23 -04 58 00.8 V 160
2020-07-30 00:04:16 C 22 54 15.33 -04 58 11.3 V 160
2020-07-30 00:09:14 C 22 54 15.41 -04 58 21.6 V 160
2020-07-30 09:00:41 C 22 54 26.67 -05 17 10.0 V 703
2020-07-30 09:07:43 C 22 54 26.79 -05 17 25.3 V 703
2020-07-30 09:14:43 C 22 54 26.91 -05 17 40.3 V 703
2020-07-30 09:21:44 C 22 54 27.02 -05 17 55.7 V 703
2020-07-30 11:07:33 C 22 54 29.64 -05 21 39.0 V T08
2020-07-30 11:08:13 C 22 54 29.66 -05 21 40.6 V T08
2020-07-30 11:10:53 C 22 54 29.72 -05 21 46.2 V T08
2020-07-30 11:15:34 C 22 54 29.75 -05 21 56.2 V T08
2020-07-30 11:16:14 C 22 54 29.79 -05 21 58.1 V T08
2020-07-30 11:34:13 C 22 54 30.09 -05 22 36.7 V T08
2020-07-31 11:18:15 C 22 54 59.55 -06 14 59.0 V T05
2020-07-31 11:20:53 C 22 54 59.59 -06 15 05.4 V T05
2020-07-31 11:24:50 C 22 54 59.66 -06 15 14.3 V T05
2020-07-31 11:37:21 C 22 54 59.85 -06 15 42.4 V T05
2020-08-01 08:56:08 C 22 55 24.70 -07 04 52.6 V 703
2020-08-01 09:03:11 C 22 55 24.79 -07 05 09.3 V 703
2020-08-01 09:10:16 C 22 55 24.88 -07 05 25.2 V 703
2020-08-08 12:14:54 C 22 57 54.42 -14 54 13.4 V T05
2020-08-08 12:19:31 C 22 57 54.42 -14 54 27.9 V T05
2020-08-08 12:30:09 C 22 57 54.48 -14 55 01.5 V T05
2020-08-08 12:51:28 C 22 57 54.53 -14 56 07.9 V T05
2020-08-09 12:04:06 C 22 58 07.42 -16 10 25.6 V T05
2020-08-09 12:08:45 C 22 58 07.43 -16 10 40.8 V T05
2020-08-09 12:54:13 C 22 58 07.50 -16 13 08.7 V T05
2020-08-09 13:02:08 C 22 58 07.50 -16 13 34.6 V T05
2020-08-10 11:04:25 C 22 58 18.29 -17 26 33.8 V T08
2020-08-10 11:07:44 C 22 58 18.30 -17 26 44.9 V T08
2020-08-10 11:11:43 C 22 58 18.30 -17 26 58.2 V T08
2020-08-10 11:19:01 C 22 58 18.30 -17 27 22.9 V T08
2020-08-12 12:20:59 C 22 58 33.30 -20 17 53.2 V T05
2020-08-12 12:25:36 C 22 58 33.28 -20 18 09.9 V T05
2020-08-12 13:15:40 C 22 58 33.11 -20 21 09.1 V T05
2020-08-12 13:56:39 C 22 58 32.97 -20 23 35.7 V T05
2020-08-13 11:57:45 C 22 58 37.435 -21 43 48.81 U F51
2020-08-13 12:13:09 C 22 58 37.349 -21 44 45.56 U F51
2020-08-13 12:43:59 C 22 58 37.178 -21 46 39.23 U F51
2020-08-16 11:10:43 C 22 58 35.38 -26 16 40.5 V T05
2020-08-16 11:15:19 C 22 58 35.32 -26 16 58.8 V T05
2020-08-16 11:23:53 C 22 58 35.22 -26 17 32.7 V T05
2020-08-18 12:06:05 C 22 58 20.01 -29 34 24.2 V T08
2020-08-18 12:10:44 C 22 58 19.94 -29 34 43.4 V T08
2020-08-18 12:18:41 C 22 58 19.82 -29 35 16.2 V T08
2020-08-18 21:44:12 S 22 56 13.786 -30 08 58.38 V C57
2020-08-18 21:44:12 s 1 -34322.632 0 +390113.45 4000.0 C57
2020-08-18 21:54:12 S 22 56 13.584 -30 09 39.82 V C57
2020-08-18 21:54:12 s 1 -34680.818 0 +390146.29 520.0 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)