85713 (1998 SS49)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.6388279291 ± 9.76e-09
Semi-major axis (a)1.9234610632 AU ± 2.56e-10
Inclination (i)10.78514118° ± 2.02e-06
Long. of Asc. Node (Ω)40.94920425° ± 3.86e-06
Arg. of Perihelion (ω)103.13358943° ± 4.25e-06
Mean Anomaly (M)27.38773996° ± 4.24e-07
Mean Motion (n)0.3694768031°/day ± 7.39e-11
Perihelion dist (q)0.69470042 AU ± 1.88e-08
Aphelion dist (Q)3.15222171 AU ± 1.88e-08
Orbital Period2.66762697 yr ± 5.33e-10
Physical Parameters
H (abs. magnitude)15.77
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.234″
Uncertainty0
Orbit TypeApollo
MOID0.004653 AU
Observations Used1372
Radar Obs Used3
Oppositions15
Arc Total1998-2024
First Observation Used1998-09-29
Last Observation Used2024-10-22
Observations (1498)
Date Type RA Dec Mag Band Observatory
2015-04-20 09:06:53 S 20 15 09.007 -28 48 25.70 L C51
2015-04-20 15:24:59 S 20 15 22.10 -28 50 08.2 L C51
2015-04-20 16:59:26 S 20 15 25.36 -28 50 35.2 L C51
2015-04-20 18:34:03 S 20 15 28.62 -28 51 00.2 L C51
2015-04-20 20:08:29 S 20 15 31.723 -28 51 26.10 L C51
2015-04-20 21:43:05 S 20 15 34.93 -28 51 51.5 L C51
2015-04-20 23:17:32 S 20 15 38.20 -28 52 18.3 L C51
2015-04-21 02:26:35 S 20 15 44.61 -28 53 10.3 L C51
2015-04-27 06:27:15 C 20 19 55.50 -29 36 59.0 r Y00
2015-04-27 06:43:54 C 20 19 56.01 -29 37 04.6 r Y00
2015-04-28 06:30:59 C 20 20 27.19 -29 44 39.7 q Y00
2015-04-28 06:45:22 C 20 20 27.56 -29 44 45.3 q Y00
2015-04-28 07:09:35 C 20 20 28.11 -29 44 54.1 q Y00
2015-05-05 08:16:03 C 20 22 52.39 -30 43 42.0 u 807
2015-05-05 08:23:02 C 20 22 52.43 -30 43 44.6 u 807
2015-05-05 08:29:59 C 20 22 52.46 -30 43 47.2 u 807
2015-06-01 05:33:55 C 20 08 32.04 -35 34 04.5 u 807
2015-06-01 05:37:42 C 20 08 31.83 -35 34 06.5 u 807
2015-06-01 05:41:34 C 20 08 31.61 -35 34 08.5 u 807
2015-06-01 05:45:10 C 20 08 31.41 -35 34 10.3 u 807
2015-06-01 05:49:11 C 20 08 31.19 -35 34 12.2 u 807
2015-06-16 12:34:33 C 19 43 05.752 -38 18 59.16 L F51
2015-06-16 12:49:14 C 19 43 04.492 -38 19 04.82 L F51
2015-06-16 13:03:53 C 19 43 03.236 -38 19 10.42 L F51
2015-06-16 13:18:33 C 19 43 01.979 -38 19 15.92 L F51
2015-06-22 11:59:30 C 19 30 41.095 -39 08 10.13 L F52
2015-06-22 12:13:51 C 19 30 39.771 -39 08 14.40 L F52
2015-06-22 12:28:18 C 19 30 38.445 -39 08 18.73 L F52
2015-06-22 12:42:40 C 19 30 37.123 -39 08 22.95 L F52
2015-07-11 02:32:06 C 18 50 57.27 -40 14 53.0 17.9 W95
2015-07-11 02:51:57 C 18 50 55.66 -40 14 53.4 17.9 W95
2015-07-11 03:11:48 C 18 50 53.95 -40 14 53.5 18.0 W95
2015-07-11 03:31:32 C 18 50 52.30 -40 14 53.6 17.7 W95
2016-07-30 13:06:27 C 23 28 37.636 -18 29 00.23 L F51
2016-07-30 13:23:08 C 23 28 37.179 -18 29 05.44 L F51
2016-07-30 13:39:49 C 23 28 36.704 -18 29 10.37 L F51
2016-07-30 13:56:28 C 23 28 36.205 -18 29 15.42 L F51
2016-08-10 11:16:15 C 23 20 05.389 -19 51 49.37 L F51
2016-08-10 11:31:07 C 23 20 04.805 -19 51 54.33 L F51
2016-08-10 11:45:58 C 23 20 04.218 -19 51 59.15 L F51
2016-08-10 12:00:50 C 23 20 03.632 -19 52 04.10 L F51
2016-08-27 09:55:30 C 23 01 43.066 -22 02 00.74 L F51
2016-08-27 10:30:52 C 23 01 41.230 -22 02 11.31 L F51
2016-08-27 10:48:31 C 23 01 40.306 -22 02 16.54 L F51
2016-10-17 06:41:49 C 22 08 38.084 -24 08 13.18 L F51
2016-10-17 06:57:39 C 22 08 37.741 -24 08 11.47 L F51
2016-10-17 07:29:17 C 22 08 37.052 -24 08 08.13 L F51
2018-06-11 12:22:09 C 21 42 34.016 -28 34 38.39 U F51
2018-06-11 12:37:06 C 21 42 33.811 -28 34 42.82 U F51
2018-06-11 12:52:05 C 21 42 33.583 -28 34 47.21 U F51
Radar Observations (3)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2014-11-21 11:44:00 193523879.3 4 us 2380 -1 -1
2014-11-21 12:31:00 193610727.44 1 us 2380 -1 -1
2022-11-18 07:50:00 146933763 10 us 8560 -14 -14
Station codes
-14 DSS-14 Goldstone (70-m) -1 Arecibo (305-m, 1963–2020)